/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/systemc/pipeline.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 14:35:30,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 14:35:30,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 14:35:30,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 14:35:30,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 14:35:30,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 14:35:30,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 14:35:30,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 14:35:30,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 14:35:30,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 14:35:30,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 14:35:30,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 14:35:30,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 14:35:30,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 14:35:30,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 14:35:30,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 14:35:30,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 14:35:30,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 14:35:30,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 14:35:30,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 14:35:30,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 14:35:30,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 14:35:30,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 14:35:30,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 14:35:30,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 14:35:30,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 14:35:30,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 14:35:30,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 14:35:30,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 14:35:30,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 14:35:30,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 14:35:30,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 14:35:30,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 14:35:30,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 14:35:30,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 14:35:30,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 14:35:30,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 14:35:30,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 14:35:30,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 14:35:30,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 14:35:30,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 14:35:30,591 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 [2020-10-29 14:35:30,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 14:35:30,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 14:35:30,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 14:35:30,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 14:35:30,636 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 14:35:30,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 14:35:30,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 14:35:30,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 14:35:30,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 14:35:30,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 14:35:30,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 14:35:30,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 14:35:30,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 14:35:30,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 14:35:30,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 14:35:30,638 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 14:35:30,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 14:35:30,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 14:35:30,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 14:35:30,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 14:35:30,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 14:35:30,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:35:30,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 14:35:30,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 14:35:30,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 14:35:30,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 14:35:30,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 14:35:30,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 14:35:30,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 14:35:30,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 14:35:31,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 14:35:31,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 14:35:31,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 14:35:31,065 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 14:35:31,066 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 14:35:31,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pipeline.cil-1.c [2020-10-29 14:35:31,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60cf54af3/7df25397c7a74e6389fd495bd9c406b9/FLAG95d83eec9 [2020-10-29 14:35:31,821 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 14:35:31,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pipeline.cil-1.c [2020-10-29 14:35:31,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60cf54af3/7df25397c7a74e6389fd495bd9c406b9/FLAG95d83eec9 [2020-10-29 14:35:32,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60cf54af3/7df25397c7a74e6389fd495bd9c406b9 [2020-10-29 14:35:32,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 14:35:32,147 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 14:35:32,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 14:35:32,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 14:35:32,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 14:35:32,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34350f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32, skipping insertion in model container [2020-10-29 14:35:32,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 14:35:32,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 14:35:32,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:35:32,481 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 14:35:32,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:35:32,572 INFO L208 MainTranslator]: Completed translation [2020-10-29 14:35:32,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32 WrapperNode [2020-10-29 14:35:32,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 14:35:32,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 14:35:32,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 14:35:32,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 14:35:32,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (1/1) ... [2020-10-29 14:35:32,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 14:35:32,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 14:35:32,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 14:35:32,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 14:35:32,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (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 [2020-10-29 14:35:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 14:35:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 14:35:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 14:35:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-29 14:35:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure N_generate [2020-10-29 14:35:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure S1_addsub [2020-10-29 14:35:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure S2_presdbl [2020-10-29 14:35:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure S3_zero [2020-10-29 14:35:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure D_print [2020-10-29 14:35:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-29 14:35:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-29 14:35:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 14:35:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 14:35:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 14:35:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 14:35:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 14:35:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 14:35:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-29 14:35:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure N_generate [2020-10-29 14:35:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure S1_addsub [2020-10-29 14:35:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure S2_presdbl [2020-10-29 14:35:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure S3_zero [2020-10-29 14:35:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure D_print [2020-10-29 14:35:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-29 14:35:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-29 14:35:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 14:35:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 14:35:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 14:35:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 14:35:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 14:35:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 14:35:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 14:35:33,699 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 14:35:33,699 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 14:35:33,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:35:33 BoogieIcfgContainer [2020-10-29 14:35:33,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 14:35:33,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 14:35:33,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 14:35:33,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 14:35:33,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:35:32" (1/3) ... [2020-10-29 14:35:33,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f46dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:35:33, skipping insertion in model container [2020-10-29 14:35:33,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:32" (2/3) ... [2020-10-29 14:35:33,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f46dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:35:33, skipping insertion in model container [2020-10-29 14:35:33,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:35:33" (3/3) ... [2020-10-29 14:35:33,712 INFO L111 eAbstractionObserver]: Analyzing ICFG pipeline.cil-1.c [2020-10-29 14:35:33,725 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 14:35:33,732 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 14:35:33,749 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 14:35:33,783 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 14:35:33,783 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 14:35:33,783 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 14:35:33,783 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 14:35:33,784 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 14:35:33,784 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 14:35:33,784 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 14:35:33,784 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 14:35:33,810 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-10-29 14:35:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 14:35:33,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:35:33,827 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:35:33,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:35:33,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:35:33,834 INFO L82 PathProgramCache]: Analyzing trace with hash 252079489, now seen corresponding path program 1 times [2020-10-29 14:35:33,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:35:33,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741301507] [2020-10-29 14:35:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:35:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:34,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:34,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:34,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:34,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:35,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:35,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:35,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:35,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:35,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:35,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:36,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:36,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:36,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:36,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:36,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:37,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:39,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 14:35:39,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 14:35:39,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 14:35:39,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:39,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:35:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 14:35:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 14:35:39,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 14:35:39,463 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:35:39,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:35:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:39,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:35:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:35:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:35:39,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:39,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:35:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:35:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:35:39,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:35:39,631 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:35:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:35:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:39,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:39,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:40,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 14:35:40,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:35:40,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-29 14:35:40,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:40,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:40,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:35:40,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:35:40,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 14:35:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:35:40,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 14:35:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:40,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:40,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:40,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 14:35:40,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:35:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-29 14:35:40,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:40,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:35:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:35:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 14:35:40,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:35:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 14:35:40,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741301507] [2020-10-29 14:35:40,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:35:40,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 14:35:40,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733692432] [2020-10-29 14:35:40,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 14:35:40,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:35:40,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 14:35:40,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:35:40,573 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 8 states. [2020-10-29 14:35:40,921 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:35:44,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:35:44,553 INFO L93 Difference]: Finished difference Result 968 states and 1724 transitions. [2020-10-29 14:35:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 14:35:44,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-10-29 14:35:44,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:35:44,580 INFO L225 Difference]: With dead ends: 968 [2020-10-29 14:35:44,581 INFO L226 Difference]: Without dead ends: 788 [2020-10-29 14:35:44,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 14:35:44,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-10-29 14:35:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 633. [2020-10-29 14:35:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-10-29 14:35:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1103 transitions. [2020-10-29 14:35:44,729 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1103 transitions. Word has length 100 [2020-10-29 14:35:44,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:35:44,730 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 1103 transitions. [2020-10-29 14:35:44,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 14:35:44,731 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1103 transitions. [2020-10-29 14:35:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:35:44,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:35:44,745 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:35:44,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 14:35:44,746 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:35:44,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:35:44,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1670219867, now seen corresponding path program 1 times [2020-10-29 14:35:44,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:35:44,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903991286] [2020-10-29 14:35:44,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:35:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:44,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:44,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:44,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:44,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:45,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:49,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:49,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:35:49,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-29 14:35:49,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 14:35:49,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:49,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:49,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:35:49,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 14:35:49,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:35:49,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:35:50,056 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:35:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:35:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:50,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:50,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:35:50,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:35:50,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:35:50,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:50,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:50,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:35:50,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:35:50,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:35:50,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:35:50,204 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:35:50,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:35:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:50,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:55,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:35:55,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-29 14:35:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 14:35:55,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:55,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:35:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-29 14:35:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:35:55,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:35:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:35:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:55,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:55,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:35:55,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:35:55,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:35:55,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:55,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:35:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:35:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:35:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:35:55,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:35:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:55,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:00,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:00,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:00,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-29 14:36:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 14:36:00,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:00,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-29 14:36:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:00,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:36:00,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:00,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:00,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:00,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:00,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:00,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:36:00,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:00,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:00,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 14:36:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-29 14:36:00,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903991286] [2020-10-29 14:36:00,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:36:00,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 14:36:00,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340520966] [2020-10-29 14:36:00,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:36:00,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:36:00,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:36:00,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:36:00,647 INFO L87 Difference]: Start difference. First operand 633 states and 1103 transitions. Second operand 7 states. [2020-10-29 14:36:00,932 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 14:36:01,782 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:01,991 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:03,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:36:03,629 INFO L93 Difference]: Finished difference Result 3505 states and 6295 transitions. [2020-10-29 14:36:03,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 14:36:03,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-29 14:36:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:36:03,670 INFO L225 Difference]: With dead ends: 3505 [2020-10-29 14:36:03,671 INFO L226 Difference]: Without dead ends: 2879 [2020-10-29 14:36:03,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:36:03,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2020-10-29 14:36:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2483. [2020-10-29 14:36:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2483 states. [2020-10-29 14:36:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 4410 transitions. [2020-10-29 14:36:03,907 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 4410 transitions. Word has length 202 [2020-10-29 14:36:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:36:03,908 INFO L481 AbstractCegarLoop]: Abstraction has 2483 states and 4410 transitions. [2020-10-29 14:36:03,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:36:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 4410 transitions. [2020-10-29 14:36:03,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:36:03,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:36:03,932 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:36:03,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 14:36:03,933 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:36:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:36:03,933 INFO L82 PathProgramCache]: Analyzing trace with hash 894142555, now seen corresponding path program 1 times [2020-10-29 14:36:03,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:36:03,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385071481] [2020-10-29 14:36:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:36:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:03,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:04,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:08,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:36:08,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-29 14:36:08,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 14:36:08,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:08,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-29 14:36:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:36:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:09,193 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:36:09,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:36:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:09,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:09,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:36:09,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:09,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:36:09,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:09,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:09,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:36:09,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:09,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:36:09,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:09,344 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:36:09,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:36:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:09,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:09,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:14,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:14,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-29 14:36:14,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 14:36:14,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:14,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:14,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 14:36:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:14,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:14,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:14,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:14,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:14,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:14,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:36:14,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:14,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:36:14,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:36:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:14,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:15,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:15,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:15,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:15,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:19,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:19,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:19,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-29 14:36:19,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:36:19,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:19,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 14:36:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:19,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:19,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:19,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:19,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:19,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:19,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:36:19,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:19,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:19,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:36:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-29 14:36:19,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385071481] [2020-10-29 14:36:19,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:36:19,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 14:36:19,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58607626] [2020-10-29 14:36:19,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:36:19,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:36:19,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:36:19,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:36:19,610 INFO L87 Difference]: Start difference. First operand 2483 states and 4410 transitions. Second operand 7 states. [2020-10-29 14:36:19,930 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 14:36:20,687 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:20,892 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:36:22,456 INFO L93 Difference]: Finished difference Result 13891 states and 27654 transitions. [2020-10-29 14:36:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 14:36:22,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-29 14:36:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:36:22,720 INFO L225 Difference]: With dead ends: 13891 [2020-10-29 14:36:22,720 INFO L226 Difference]: Without dead ends: 11415 [2020-10-29 14:36:22,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:36:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11415 states. [2020-10-29 14:36:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11415 to 9899. [2020-10-29 14:36:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9899 states. [2020-10-29 14:36:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9899 states to 9899 states and 19586 transitions. [2020-10-29 14:36:23,966 INFO L78 Accepts]: Start accepts. Automaton has 9899 states and 19586 transitions. Word has length 202 [2020-10-29 14:36:23,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:36:23,967 INFO L481 AbstractCegarLoop]: Abstraction has 9899 states and 19586 transitions. [2020-10-29 14:36:23,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:36:23,968 INFO L276 IsEmpty]: Start isEmpty. Operand 9899 states and 19586 transitions. [2020-10-29 14:36:24,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:36:24,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:36:24,207 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:36:24,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 14:36:24,207 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:36:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:36:24,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1690667099, now seen corresponding path program 1 times [2020-10-29 14:36:24,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:36:24,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359757644] [2020-10-29 14:36:24,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:36:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:24,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:28,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:29,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:36:29,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-29 14:36:29,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 14:36:29,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:29,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:29,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:29,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-29 14:36:29,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:36:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:29,438 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:36:29,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:36:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:29,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:29,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:36:29,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 14:36:29,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:29,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:36:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:36:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-10-29 14:36:29,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:36:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:29,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:29,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:30,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:30,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:30,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:34,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:34,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-29 14:36:34,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 14:36:34,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:34,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 14:36:34,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:34,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:34,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:34,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:34,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:34,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:36:34,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:34,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:34,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:36:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:34,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:34,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:35,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:35,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:35,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:35,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:35,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:35,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:39,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:39,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:39,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-29 14:36:39,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 14:36:39,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:39,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:39,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 14:36:39,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:36:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:39,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:39,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:39,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:39,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:39,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:39,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:36:39,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:39,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:39,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:39,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:39,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 14:36:39,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359757644] [2020-10-29 14:36:39,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:36:39,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 14:36:39,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93558234] [2020-10-29 14:36:39,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:36:39,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:36:39,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:36:39,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:36:39,799 INFO L87 Difference]: Start difference. First operand 9899 states and 19586 transitions. Second operand 7 states. [2020-10-29 14:36:40,052 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 14:36:40,769 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:40,967 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:46,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:36:46,940 INFO L93 Difference]: Finished difference Result 55419 states and 157230 transitions. [2020-10-29 14:36:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 14:36:46,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-29 14:36:46,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:36:48,573 INFO L225 Difference]: With dead ends: 55419 [2020-10-29 14:36:48,573 INFO L226 Difference]: Without dead ends: 45527 [2020-10-29 14:36:49,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:36:49,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45527 states. [2020-10-29 14:36:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45527 to 39435. [2020-10-29 14:36:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39435 states. [2020-10-29 14:37:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39435 states to 39435 states and 111690 transitions. [2020-10-29 14:37:02,407 INFO L78 Accepts]: Start accepts. Automaton has 39435 states and 111690 transitions. Word has length 202 [2020-10-29 14:37:02,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:37:02,407 INFO L481 AbstractCegarLoop]: Abstraction has 39435 states and 111690 transitions. [2020-10-29 14:37:02,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:37:02,407 INFO L276 IsEmpty]: Start isEmpty. Operand 39435 states and 111690 transitions. [2020-10-29 14:37:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:37:05,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:37:05,806 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:37:05,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 14:37:05,806 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:37:05,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:37:05,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1345023335, now seen corresponding path program 1 times [2020-10-29 14:37:05,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:37:05,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015477131] [2020-10-29 14:37:05,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:37:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:05,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:05,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:05,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:05,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:05,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:06,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:06,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:06,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:06,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:06,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:07,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:10,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:10,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:37:10,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 14:37:10,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 14:37:10,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:10,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 14:37:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:37:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:11,072 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:37:11,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:37:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:11,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:11,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:11,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:37:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:37:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:37:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:11,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:37:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:37:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:37:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:11,212 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:37:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:37:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:11,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:11,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:11,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:11,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:11,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:11,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:11,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:12,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:12,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:12,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:16,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:37:16,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:37:16,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 14:37:16,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:16,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 14:37:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:37:16,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:16,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:37:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:16,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:16,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:37:16,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:37:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:37:16,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:16,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:37:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:37:16,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:16,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:37:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:16,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:17,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:18,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:18,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:21,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:21,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:37:21,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:37:21,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:37:21,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:21,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:21,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 14:37:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:37:21,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:21,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:37:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:21,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:21,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:37:21,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:37:21,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:37:21,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:21,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:21,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:37:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:37:21,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:37:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-29 14:37:21,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015477131] [2020-10-29 14:37:21,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:37:21,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 14:37:21,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316683588] [2020-10-29 14:37:21,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 14:37:21,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:37:21,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 14:37:21,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 14:37:21,462 INFO L87 Difference]: Start difference. First operand 39435 states and 111690 transitions. Second operand 6 states. [2020-10-29 14:37:21,718 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:37:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:37:44,869 INFO L93 Difference]: Finished difference Result 130003 states and 551760 transitions. [2020-10-29 14:37:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 14:37:44,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2020-10-29 14:37:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:37:50,721 INFO L225 Difference]: With dead ends: 130003 [2020-10-29 14:37:50,722 INFO L226 Difference]: Without dead ends: 90575 [2020-10-29 14:37:56,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:37:56,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90575 states.