/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:10:40,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:10:40,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:10:40,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:10:40,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:10:40,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:10:40,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:10:41,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:10:41,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:10:41,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:10:41,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:10:41,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:10:41,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:10:41,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:10:41,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:10:41,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:10:41,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:10:41,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:10:41,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:10:41,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:10:41,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:10:41,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:10:41,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:10:41,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:10:41,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:10:41,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:10:41,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:10:41,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:10:41,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:10:41,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:10:41,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:10:41,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:10:41,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:10:41,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:10:41,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:10:41,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:10:41,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:10:41,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:10:41,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:10:41,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:10:41,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:10:41,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 23:10:41,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:10:41,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:10:41,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:10:41,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:10:41,124 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:10:41,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:10:41,125 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:10:41,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:10:41,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:10:41,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:10:41,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:10:41,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:10:41,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:10:41,126 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:10:41,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:10:41,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:10:41,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:10:41,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:10:41,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:10:41,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:10:41,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:10:41,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:10:41,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:10:41,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:10:41,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:10:41,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:10:41,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:10:41,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:10:41,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:10:41,131 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:10:41,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:10:41,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:10:41,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:10:41,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:10:41,570 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:10:41,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-27 23:10:41,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc892c3c2/3390064197c548bebf0ff5d4cf9eabd9/FLAG84f860cdd [2020-10-27 23:10:42,482 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:10:42,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-27 23:10:42,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc892c3c2/3390064197c548bebf0ff5d4cf9eabd9/FLAG84f860cdd [2020-10-27 23:10:42,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc892c3c2/3390064197c548bebf0ff5d4cf9eabd9 [2020-10-27 23:10:42,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:10:42,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:10:42,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:10:42,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:10:42,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:10:42,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:10:42" (1/1) ... [2020-10-27 23:10:42,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4c458d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:42, skipping insertion in model container [2020-10-27 23:10:42,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:10:42" (1/1) ... [2020-10-27 23:10:42,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:10:42,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:10:43,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:10:43,298 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:10:43,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:10:43,435 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:10:43,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43 WrapperNode [2020-10-27 23:10:43,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:10:43,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:10:43,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:10:43,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:10:43,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... [2020-10-27 23:10:43,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... [2020-10-27 23:10:43,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... [2020-10-27 23:10:43,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... [2020-10-27 23:10:43,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... [2020-10-27 23:10:43,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... [2020-10-27 23:10:43,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... [2020-10-27 23:10:43,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:10:43,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:10:43,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:10:43,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:10:43,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 23:10:43,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:10:43,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:10:43,709 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:10:43,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:10:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:10:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:10:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:10:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:10:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:10:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:10:43,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:10:43,711 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:10:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:10:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:10:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:10:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:10:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:10:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:10:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:10:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:10:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:10:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:10:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:10:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:10:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:10:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:10:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:10:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:10:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:10:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:10:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:10:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:10:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:10:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:10:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:10:45,379 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:10:45,379 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:10:45,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:10:45 BoogieIcfgContainer [2020-10-27 23:10:45,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:10:45,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:10:45,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:10:45,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:10:45,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:10:42" (1/3) ... [2020-10-27 23:10:45,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b7ed74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:10:45, skipping insertion in model container [2020-10-27 23:10:45,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:43" (2/3) ... [2020-10-27 23:10:45,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b7ed74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:10:45, skipping insertion in model container [2020-10-27 23:10:45,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:10:45" (3/3) ... [2020-10-27 23:10:45,397 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-27 23:10:45,409 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:10:45,415 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:10:45,430 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:10:45,473 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:10:45,474 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:10:45,474 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:10:45,474 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:10:45,474 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:10:45,474 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:10:45,474 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:10:45,475 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:10:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-10-27 23:10:45,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:10:45,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:45,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:10:45,518 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:45,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:45,525 INFO L82 PathProgramCache]: Analyzing trace with hash 693523995, now seen corresponding path program 1 times [2020-10-27 23:10:45,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:45,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486774451] [2020-10-27 23:10:45,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:46,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:46,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:46,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:10:46,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-10-27 23:10:46,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 23:10:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:46,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:10:47,282 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:10:47,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:47,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:10:47,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:10:47,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 23:10:47,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:10:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:47,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:10:47,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:10:47,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:10:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:47,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:47,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:10:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:47,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:47,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:10:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:47,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:47,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:10:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:47,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:47,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:47,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:10:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:10:47,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:10:47,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:10:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:47,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:10:47,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486774451] [2020-10-27 23:10:47,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:47,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 23:10:47,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962055386] [2020-10-27 23:10:47,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 23:10:47,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:47,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 23:10:47,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 23:10:47,786 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 7 states. [2020-10-27 23:10:48,780 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:10:49,474 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:10:50,026 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:10:50,570 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:10:51,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:10:51,078 INFO L93 Difference]: Finished difference Result 540 states and 903 transitions. [2020-10-27 23:10:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 23:10:51,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-27 23:10:51,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:10:51,114 INFO L225 Difference]: With dead ends: 540 [2020-10-27 23:10:51,114 INFO L226 Difference]: Without dead ends: 378 [2020-10-27 23:10:51,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:10:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-10-27 23:10:51,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 342. [2020-10-27 23:10:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-10-27 23:10:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 585 transitions. [2020-10-27 23:10:51,247 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 585 transitions. Word has length 109 [2020-10-27 23:10:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:10:51,249 INFO L481 AbstractCegarLoop]: Abstraction has 342 states and 585 transitions. [2020-10-27 23:10:51,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 23:10:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 585 transitions. [2020-10-27 23:10:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:10:51,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:51,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:10:51,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:10:51,268 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:51,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:51,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1673170599, now seen corresponding path program 1 times [2020-10-27 23:10:51,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:51,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794775717] [2020-10-27 23:10:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:52,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:52,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:10:52,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:52,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1515 [2020-10-27 23:10:52,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:10:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 23:10:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:10:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,580 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:10:53,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:53,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:10:53,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:53,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:10:53,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-27 23:10:53,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 23:10:53,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:10:53,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:10:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:53,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:54,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:10:54,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:10:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:10:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:10:54,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:10:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:54,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:54,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:54,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:54,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:54,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:10:54,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:10:54,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:10:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:54,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:54,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:54,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:54,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:10:54,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:54,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:10:54,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:10:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:54,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:54,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:54,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:54,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:54,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:54,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:54,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:10:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:54,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:54,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:54,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:54,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:54,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:10:54,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:54,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:54,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:54,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:54,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:54,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:10:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:54,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:54,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:54,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:10:54,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:10:54,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:10:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:10:54,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794775717] [2020-10-27 23:10:54,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:54,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:10:54,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437132628] [2020-10-27 23:10:54,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:10:54,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:54,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:10:54,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:10:54,471 INFO L87 Difference]: Start difference. First operand 342 states and 585 transitions. Second operand 13 states. [2020-10-27 23:10:57,529 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:10:58,202 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:10:58,980 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:10:59,626 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-27 23:11:00,332 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:00,995 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:01,698 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:02,409 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:03,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:03,670 INFO L93 Difference]: Finished difference Result 540 states and 903 transitions. [2020-10-27 23:11:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:11:03,674 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 23:11:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:03,678 INFO L225 Difference]: With dead ends: 540 [2020-10-27 23:11:03,679 INFO L226 Difference]: Without dead ends: 388 [2020-10-27 23:11:03,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:11:03,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-27 23:11:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 342. [2020-10-27 23:11:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-10-27 23:11:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 551 transitions. [2020-10-27 23:11:03,753 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 551 transitions. Word has length 109 [2020-10-27 23:11:03,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:03,753 INFO L481 AbstractCegarLoop]: Abstraction has 342 states and 551 transitions. [2020-10-27 23:11:03,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:11:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 551 transitions. [2020-10-27 23:11:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 23:11:03,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:03,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:03,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:11:03,757 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:03,758 INFO L82 PathProgramCache]: Analyzing trace with hash -2057294534, now seen corresponding path program 1 times [2020-10-27 23:11:03,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:03,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253446683] [2020-10-27 23:11:03,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:03,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:03,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:04,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:05,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:08,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:08,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 23:11:08,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:11:08,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-27 23:11:08,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:08,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-27 23:11:08,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 23:11:08,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:09,390 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:09,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:09,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:11:09,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:09,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:09,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:11:09,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 23:11:09,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 23:11:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:09,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:11:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:09,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:11:09,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:09,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:09,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:09,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:09,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:11:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:09,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:09,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:09,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:09,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:11:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:09,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:11:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:09,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:11:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:09,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:11:09,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:09,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:09,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:11:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:09,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:11:09,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:09,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:09,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:09,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:09,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 23:11:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:09,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:09,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:09,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:09,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:09,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:09,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:09,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:09,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:09,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:09,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:09,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253446683] [2020-10-27 23:11:09,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:09,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:11:09,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933067146] [2020-10-27 23:11:10,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:11:10,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:10,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:11:10,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:11:10,002 INFO L87 Difference]: Start difference. First operand 342 states and 551 transitions. Second operand 10 states. [2020-10-27 23:11:10,602 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:12,605 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:13,083 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:13,577 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:14,076 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:14,444 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:15,178 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:15,525 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:15,875 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:16,669 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:16,839 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:17,095 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:17,130 INFO L93 Difference]: Finished difference Result 701 states and 1130 transitions. [2020-10-27 23:11:17,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:11:17,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-27 23:11:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:17,140 INFO L225 Difference]: With dead ends: 701 [2020-10-27 23:11:17,141 INFO L226 Difference]: Without dead ends: 555 [2020-10-27 23:11:17,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:11:17,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-10-27 23:11:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 477. [2020-10-27 23:11:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-27 23:11:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 768 transitions. [2020-10-27 23:11:17,215 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 768 transitions. Word has length 142 [2020-10-27 23:11:17,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:17,217 INFO L481 AbstractCegarLoop]: Abstraction has 477 states and 768 transitions. [2020-10-27 23:11:17,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:11:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 768 transitions. [2020-10-27 23:11:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-27 23:11:17,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:17,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:17,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:11:17,222 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:17,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1390073832, now seen corresponding path program 1 times [2020-10-27 23:11:17,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:17,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114032374] [2020-10-27 23:11:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:18,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:19,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:20,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:22,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:22,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 23:11:22,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:11:22,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-27 23:11:22,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 23:11:22,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:11:22,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:22,981 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:22,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:22,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:23,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:11:23,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:23,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:23,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:11:23,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-27 23:11:23,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 23:11:23,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:23,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:11:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:23,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:23,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:23,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:23,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:23,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:11:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:23,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:23,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:11:23,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:23,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:23,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:23,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:23,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:11:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:23,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:23,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:11:23,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:23,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:11:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:23,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:23,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:11:23,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:11:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:11:23,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:23,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:11:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:23,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:23,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 23:11:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:23,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:23,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:23,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:23,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:23,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:23,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:23,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114032374] [2020-10-27 23:11:23,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:23,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:11:23,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107846183] [2020-10-27 23:11:23,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:11:23,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:23,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:11:23,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:11:23,613 INFO L87 Difference]: Start difference. First operand 477 states and 768 transitions. Second operand 10 states. [2020-10-27 23:11:24,231 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:26,237 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:26,755 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:27,300 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:27,691 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:28,045 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:28,201 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:29,457 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:29,870 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:30,746 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:30,949 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:31,214 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:31,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:31,270 INFO L93 Difference]: Finished difference Result 1173 states and 1890 transitions. [2020-10-27 23:11:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:11:31,273 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-27 23:11:31,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:31,279 INFO L225 Difference]: With dead ends: 1173 [2020-10-27 23:11:31,279 INFO L226 Difference]: Without dead ends: 892 [2020-10-27 23:11:31,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:11:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2020-10-27 23:11:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 739. [2020-10-27 23:11:31,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-27 23:11:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1186 transitions. [2020-10-27 23:11:31,366 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1186 transitions. Word has length 145 [2020-10-27 23:11:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:31,367 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 1186 transitions. [2020-10-27 23:11:31,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:11:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1186 transitions. [2020-10-27 23:11:31,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-27 23:11:31,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:31,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:31,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:11:31,370 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:31,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1473521550, now seen corresponding path program 1 times [2020-10-27 23:11:31,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:31,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673722986] [2020-10-27 23:11:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:31,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:31,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:31,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:31,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:32,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:34,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:36,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:36,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 23:11:36,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 23:11:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:11:36,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 23:11:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 23:11:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,063 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:37,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:37,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:11:37,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:37,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:11:37,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 23:11:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 23:11:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:11:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:37,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:37,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:11:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:37,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:11:37,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:11:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:37,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:11:37,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:37,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:37,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:11:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:11:37,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:11:37,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:11:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:37,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 23:11:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:11:37,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:37,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:11:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:37,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 23:11:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:37,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:37,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:37,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:37,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:37,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:37,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673722986] [2020-10-27 23:11:37,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:37,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:11:37,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134362545] [2020-10-27 23:11:37,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:11:37,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:37,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:11:37,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:11:37,598 INFO L87 Difference]: Start difference. First operand 739 states and 1186 transitions. Second operand 10 states. [2020-10-27 23:11:38,352 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:40,376 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:40,875 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:41,242 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:41,643 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:41,850 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:42,494 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:42,687 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:43,794 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:44,661 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:44,852 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:45,098 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:45,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:45,189 INFO L93 Difference]: Finished difference Result 2093 states and 3362 transitions. [2020-10-27 23:11:45,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:11:45,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-27 23:11:45,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:45,202 INFO L225 Difference]: With dead ends: 2093 [2020-10-27 23:11:45,203 INFO L226 Difference]: Without dead ends: 1550 [2020-10-27 23:11:45,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:11:45,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2020-10-27 23:11:45,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1247. [2020-10-27 23:11:45,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2020-10-27 23:11:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1990 transitions. [2020-10-27 23:11:45,369 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1990 transitions. Word has length 148 [2020-10-27 23:11:45,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:45,370 INFO L481 AbstractCegarLoop]: Abstraction has 1247 states and 1990 transitions. [2020-10-27 23:11:45,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:11:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1990 transitions. [2020-10-27 23:11:45,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 23:11:45,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:45,374 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:45,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:11:45,374 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:45,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:45,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1796266378, now seen corresponding path program 1 times [2020-10-27 23:11:45,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:45,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886833036] [2020-10-27 23:11:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:45,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:45,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:45,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:45,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:46,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:46,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:50,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-27 23:11:50,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:11:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 23:11:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 23:11:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 23:11:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,170 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:11:51,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:51,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:11:51,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:51,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:51,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:51,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:11:51,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-27 23:11:51,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 23:11:51,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:11:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:51,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:51,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:51,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:51,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:51,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:11:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:51,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:11:51,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:11:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:11:51,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:11:51,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:11:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 23:11:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:11:51,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:11:51,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:11:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 23:11:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:11:51,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:11:51,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:11:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:51,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 23:11:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:51,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:51,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:51,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:51,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:51,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:51,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886833036] [2020-10-27 23:11:51,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:51,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:11:51,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96822154] [2020-10-27 23:11:51,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:11:51,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:51,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:11:51,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:11:51,674 INFO L87 Difference]: Start difference. First operand 1247 states and 1990 transitions. Second operand 10 states. [2020-10-27 23:11:52,287 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:54,192 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:54,558 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:54,946 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:55,117 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:55,776 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:55,952 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:56,637 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:11:56,807 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:11:58,142 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:11:58,757 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:11:59,000 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:11:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:59,160 INFO L93 Difference]: Finished difference Result 3917 states and 6266 transitions. [2020-10-27 23:11:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:11:59,161 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-27 23:11:59,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:59,181 INFO L225 Difference]: With dead ends: 3917 [2020-10-27 23:11:59,182 INFO L226 Difference]: Without dead ends: 2866 [2020-10-27 23:11:59,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:11:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2020-10-27 23:11:59,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2239. [2020-10-27 23:11:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2239 states. [2020-10-27 23:11:59,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3494 transitions. [2020-10-27 23:11:59,445 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3494 transitions. Word has length 151 [2020-10-27 23:11:59,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:59,445 INFO L481 AbstractCegarLoop]: Abstraction has 2239 states and 3494 transitions. [2020-10-27 23:11:59,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:11:59,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3494 transitions. [2020-10-27 23:11:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 23:11:59,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:59,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:59,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:11:59,451 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:59,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:59,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1014859784, now seen corresponding path program 1 times [2020-10-27 23:11:59,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:59,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809389242] [2020-10-27 23:11:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:59,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:59,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:59,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:59,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:00,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:00,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:01,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:01,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:01,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:01,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 23:12:04,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 23:12:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 23:12:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 23:12:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-27 23:12:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-27 23:12:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,198 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:05,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:12:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:12:05,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-27 23:12:05,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:12:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:05,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:12:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:12:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:05,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:12:05,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:12:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:05,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:12:05,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 23:12:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 23:12:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:05,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:12:05,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 23:12:05,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 23:12:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:05,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:12:05,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 23:12:05,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 23:12:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:05,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:12:05,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:05,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 23:12:05,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:12:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:05,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:05,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:05,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:12:05,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:05,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:12:05,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:05,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:05,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:12:05,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:05,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:05,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809389242] [2020-10-27 23:12:05,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:05,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 23:12:05,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272798865] [2020-10-27 23:12:05,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 23:12:05,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:05,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 23:12:05,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-27 23:12:05,940 INFO L87 Difference]: Start difference. First operand 2239 states and 3494 transitions. Second operand 16 states. [2020-10-27 23:12:06,616 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:09,065 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:12:09,667 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:10,281 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:12:10,671 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:11,023 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:11,390 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:11,582 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:12,074 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:12,385 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:12,687 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:12,886 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:13,096 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:13,596 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:14,007 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:14,231 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:14,557 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:14,761 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:14,947 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:15,162 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:15,782 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:16,196 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:16,406 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:16,641 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:17,500 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:18,126 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:12:18,765 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-27 23:12:19,387 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:21,427 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:21,634 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:21,837 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:22,029 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:22,229 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:22,470 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:22,672 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:22,864 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:24,134 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:24,472 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:24,807 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:25,011 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:25,201 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:25,539 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:25,743 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:25,941 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:27,205 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:27,578 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:27,840 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:28,150 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:28,363 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:28,749 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:28,970 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:30,519 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:30,763 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:31,002 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:31,277 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:31,670 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:32,165 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:34,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:34,013 INFO L93 Difference]: Finished difference Result 15561 states and 24726 transitions. [2020-10-27 23:12:34,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-27 23:12:34,013 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 154 [2020-10-27 23:12:34,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:34,096 INFO L225 Difference]: With dead ends: 15561 [2020-10-27 23:12:34,096 INFO L226 Difference]: Without dead ends: 13518 [2020-10-27 23:12:34,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1857 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=1166, Invalid=4534, Unknown=0, NotChecked=0, Total=5700 [2020-10-27 23:12:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13518 states. [2020-10-27 23:12:35,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13518 to 10486. [2020-10-27 23:12:35,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10486 states. [2020-10-27 23:12:35,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10486 states to 10486 states and 16500 transitions. [2020-10-27 23:12:35,068 INFO L78 Accepts]: Start accepts. Automaton has 10486 states and 16500 transitions. Word has length 154 [2020-10-27 23:12:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:35,069 INFO L481 AbstractCegarLoop]: Abstraction has 10486 states and 16500 transitions. [2020-10-27 23:12:35,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 23:12:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 10486 states and 16500 transitions. [2020-10-27 23:12:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-27 23:12:35,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:35,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:35,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:12:35,081 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:35,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:35,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1479808086, now seen corresponding path program 1 times [2020-10-27 23:12:35,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:35,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000123935] [2020-10-27 23:12:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:35,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:35,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:35,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:35,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:36,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:36,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:37,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:40,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 23:12:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:40,785 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:40,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:40,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:40,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:40,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:40,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:40,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:40,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:40,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:12:40,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 23:12:40,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:12:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-27 23:12:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:40,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:12:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:40,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:40,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:40,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:40,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:12:40,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:40,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:12:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:41,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:41,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:41,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:41,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:12:41,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 23:12:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:41,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 23:12:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:41,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:41,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:41,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:41,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:12:41,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:41,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:41,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 23:12:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:41,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:41,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:41,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:41,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:41,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:12:41,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:41,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 23:12:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:41,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:41,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:12:41,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:12:41,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:12:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:41,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:41,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:41,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:41,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:12:41,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:12:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:41,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:41,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:41,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000123935] [2020-10-27 23:12:41,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:41,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:12:41,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282630201] [2020-10-27 23:12:41,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:12:41,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:41,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:12:41,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:12:41,281 INFO L87 Difference]: Start difference. First operand 10486 states and 16500 transitions. Second operand 11 states. [2020-10-27 23:12:41,998 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:12:44,562 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:12:44,923 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:45,279 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:45,451 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:45,803 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:45,993 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:46,208 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:47,044 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:47,237 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:47,406 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:48,218 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:48,422 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:48,593 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:49,967 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:50,568 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:51,753 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:51,984 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:52,188 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:52,509 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:53,491 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:53,775 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:54,012 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:54,979 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:55,197 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:56,124 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:56,335 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:57,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:57,300 INFO L93 Difference]: Finished difference Result 37071 states and 58986 transitions. [2020-10-27 23:12:57,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:12:57,301 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2020-10-27 23:12:57,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:57,434 INFO L225 Difference]: With dead ends: 37071 [2020-10-27 23:12:57,435 INFO L226 Difference]: Without dead ends: 26781 [2020-10-27 23:12:57,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 23:12:57,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26781 states. [2020-10-27 23:12:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26781 to 20897. [2020-10-27 23:12:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20897 states. [2020-10-27 23:12:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20897 states to 20897 states and 32898 transitions. [2020-10-27 23:12:58,942 INFO L78 Accepts]: Start accepts. Automaton has 20897 states and 32898 transitions. Word has length 155 [2020-10-27 23:12:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:58,943 INFO L481 AbstractCegarLoop]: Abstraction has 20897 states and 32898 transitions. [2020-10-27 23:12:58,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:12:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 20897 states and 32898 transitions. [2020-10-27 23:12:58,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 23:12:58,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:58,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:58,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:12:58,955 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:58,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1496587442, now seen corresponding path program 1 times [2020-10-27 23:12:58,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:58,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875630974] [2020-10-27 23:12:58,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:59,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:59,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:59,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:00,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 23:13:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,655 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:04,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:04,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:13:04,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:04,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:13:04,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 23:13:04,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:04,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 23:13:04,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:13:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:04,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:04,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:13:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 23:13:04,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:13:04,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:04,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:04,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:13:04,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:04,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:13:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:04,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:04,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:04,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:04,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:04,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:04,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:13:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:05,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 23:13:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:05,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:05,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:05,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:05,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:05,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:13:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:05,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 23:13:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:05,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:05,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:05,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:05,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:05,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:05,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:13:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:05,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:05,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 23:13:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:05,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:13:05,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:05,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:05,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:13:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:05,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:05,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:05,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875630974] [2020-10-27 23:13:05,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:05,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:13:05,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607250192] [2020-10-27 23:13:05,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:13:05,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:05,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:13:05,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:13:05,161 INFO L87 Difference]: Start difference. First operand 20897 states and 32898 transitions. Second operand 10 states. [2020-10-27 23:13:05,812 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:13:08,023 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:08,216 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:08,481 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:09,033 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:09,579 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:10,490 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-27 23:13:10,780 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 23:13:11,143 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:11,792 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:12,481 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:14,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:14,797 INFO L93 Difference]: Finished difference Result 60299 states and 95927 transitions. [2020-10-27 23:13:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:13:14,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-27 23:13:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:14,998 INFO L225 Difference]: With dead ends: 60299 [2020-10-27 23:13:14,998 INFO L226 Difference]: Without dead ends: 43451 [2020-10-27 23:13:15,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:13:15,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43451 states. [2020-10-27 23:13:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43451 to 34232. [2020-10-27 23:13:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34232 states. [2020-10-27 23:13:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34232 states to 34232 states and 53501 transitions. [2020-10-27 23:13:17,757 INFO L78 Accepts]: Start accepts. Automaton has 34232 states and 53501 transitions. Word has length 156 [2020-10-27 23:13:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:17,758 INFO L481 AbstractCegarLoop]: Abstraction has 34232 states and 53501 transitions. [2020-10-27 23:13:17,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:13:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 34232 states and 53501 transitions. [2020-10-27 23:13:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 23:13:17,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:17,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:13:17,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:13:17,763 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:17,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:17,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1485847502, now seen corresponding path program 1 times [2020-10-27 23:13:17,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:17,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108513279] [2020-10-27 23:13:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:17,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:17,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:18,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:18,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:18,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:20,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:20,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:20,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:20,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:21,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 23:13:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 23:13:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 23:13:22,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-27 23:13:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 23:13:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,514 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:23,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:23,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:13:23,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:23,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:23,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:23,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:13:23,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 23:13:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 23:13:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:13:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:23,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:23,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:23,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:23,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:23,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:13:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:23,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 23:13:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 23:13:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 23:13:23,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:13:23,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:13:23,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 23:13:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:23,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:13:23,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:13:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 23:13:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:23,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:23,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:23,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:13:23,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:23,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:13:23,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:13:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:23,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108513279] [2020-10-27 23:13:23,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:23,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:13:23,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972652282] [2020-10-27 23:13:23,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:13:23,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:23,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:13:23,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:13:23,986 INFO L87 Difference]: Start difference. First operand 34232 states and 53501 transitions. Second operand 10 states. [2020-10-27 23:13:24,626 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:13:26,782 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:27,084 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:27,607 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:27,810 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:28,074 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:28,864 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:29,277 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:29,705 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-27 23:13:30,002 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 23:13:30,237 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:33,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:33,414 INFO L93 Difference]: Finished difference Result 84925 states and 134180 transitions. [2020-10-27 23:13:33,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:13:33,415 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-27 23:13:33,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:33,691 INFO L225 Difference]: With dead ends: 84925 [2020-10-27 23:13:33,691 INFO L226 Difference]: Without dead ends: 63801 [2020-10-27 23:13:33,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:13:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63801 states. [2020-10-27 23:13:37,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63801 to 50604. [2020-10-27 23:13:37,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50604 states. [2020-10-27 23:13:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50604 states to 50604 states and 78623 transitions. [2020-10-27 23:13:37,391 INFO L78 Accepts]: Start accepts. Automaton has 50604 states and 78623 transitions. Word has length 156 [2020-10-27 23:13:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:37,391 INFO L481 AbstractCegarLoop]: Abstraction has 50604 states and 78623 transitions. [2020-10-27 23:13:37,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:13:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 50604 states and 78623 transitions. [2020-10-27 23:13:37,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 23:13:37,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:37,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:13:37,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:13:37,394 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:37,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:37,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1802797618, now seen corresponding path program 1 times [2020-10-27 23:13:37,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:37,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442258692] [2020-10-27 23:13:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:37,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:37,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:37,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:37,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:38,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:38,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:38,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:39,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:39,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:39,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:42,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:42,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 23:13:42,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 23:13:42,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-27 23:13:42,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:42,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:42,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-27 23:13:42,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:13:42,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,332 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:43,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:43,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:13:43,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:43,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:13:43,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 23:13:43,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 23:13:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:13:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:43,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:13:43,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:43,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:13:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:43,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:43,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 23:13:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 23:13:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:13:43,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:43,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:43,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 23:13:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:13:43,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 23:13:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:43,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:43,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:13:43,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:13:43,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:13:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:43,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442258692] [2020-10-27 23:13:43,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:43,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:13:43,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012141253] [2020-10-27 23:13:43,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:13:43,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:43,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:13:43,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:13:43,768 INFO L87 Difference]: Start difference. First operand 50604 states and 78623 transitions. Second operand 10 states. [2020-10-27 23:13:44,438 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:13:46,595 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:46,902 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:47,503 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:47,905 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:48,104 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:13:48,633 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:49,038 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:49,409 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:49,868 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:13:50,180 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 23:13:54,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:54,469 INFO L93 Difference]: Finished difference Result 123827 states and 194627 transitions. [2020-10-27 23:13:54,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:13:54,470 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-27 23:13:54,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:55,011 INFO L225 Difference]: With dead ends: 123827 [2020-10-27 23:13:55,011 INFO L226 Difference]: Without dead ends: 92724 [2020-10-27 23:13:55,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:13:55,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92724 states. [2020-10-27 23:14:00,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92724 to 74136. [2020-10-27 23:14:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74136 states. [2020-10-27 23:14:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74136 states to 74136 states and 114426 transitions. [2020-10-27 23:14:00,980 INFO L78 Accepts]: Start accepts. Automaton has 74136 states and 114426 transitions. Word has length 156 [2020-10-27 23:14:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:14:00,980 INFO L481 AbstractCegarLoop]: Abstraction has 74136 states and 114426 transitions. [2020-10-27 23:14:00,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:14:00,981 INFO L276 IsEmpty]: Start isEmpty. Operand 74136 states and 114426 transitions. [2020-10-27 23:14:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 23:14:00,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:14:00,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:14:00,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 23:14:00,983 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:14:00,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:14:00,984 INFO L82 PathProgramCache]: Analyzing trace with hash -315569311, now seen corresponding path program 1 times [2020-10-27 23:14:00,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:14:00,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291823400] [2020-10-27 23:14:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:14:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:02,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:02,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:03,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:06,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 23:14:06,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 23:14:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:14:06,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:14:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-27 23:14:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 23:14:06,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:06,740 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:14:06,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:14:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:06,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:14:06,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:06,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:14:06,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:06,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:06,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:14:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:06,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:06,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 23:14:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 23:14:06,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:14:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 23:14:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:14:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:06,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:06,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:14:06,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:06,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:14:06,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:14:06,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:06,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:14:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:06,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:06,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:14:06,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:06,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:14:06,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:06,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:06,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:14:06,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:07,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 23:14:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:07,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:07,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:07,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:14:07,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:07,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:14:07,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:14:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:14:07,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 23:14:07,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 23:14:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:07,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:07,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:07,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:14:07,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:07,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:14:07,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:14:07,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0