/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/array-crafted/zero_sum_m4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:26:53,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:26:53,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:26:53,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:26:53,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:26:53,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:26:53,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:26:53,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:26:53,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:26:53,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:26:53,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:26:53,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:26:53,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:26:53,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:26:53,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:26:53,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:26:53,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:26:53,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:26:53,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:26:53,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:26:53,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:26:53,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:26:53,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:26:53,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:26:53,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:26:53,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:26:53,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:26:53,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:26:53,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:26:53,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:26:53,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:26:53,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:26:53,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:26:53,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:26:53,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:26:53,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:26:53,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:26:53,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:26:53,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:26:53,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:26:53,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:26:53,833 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 03:26:53,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:26:53,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:26:53,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:26:53,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:26:53,877 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:26:53,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:26:53,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:26:53,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:26:53,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:26:53,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:26:53,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:26:53,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:26:53,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:26:53,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:26:53,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:26:53,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:26:53,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:26:53,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:26:53,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:26:53,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:26:53,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:26:53,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:26:53,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:26:53,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:26:53,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:26:53,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:26:53,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:26:53,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:26:53,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:26:53,886 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:26:54,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:26:54,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:26:54,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:26:54,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:26:54,384 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:26:54,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/zero_sum_m4.c [2020-10-29 03:26:54,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe050707a/9534476ad85441c49763010eb673afba/FLAGbe97937f5 [2020-10-29 03:26:55,067 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:26:55,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-crafted/zero_sum_m4.c [2020-10-29 03:26:55,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe050707a/9534476ad85441c49763010eb673afba/FLAGbe97937f5 [2020-10-29 03:26:55,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe050707a/9534476ad85441c49763010eb673afba [2020-10-29 03:26:55,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:26:55,437 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:26:55,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:26:55,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:26:55,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:26:55,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a6891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55, skipping insertion in model container [2020-10-29 03:26:55,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:26:55,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:26:55,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:26:55,682 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:26:55,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:26:55,731 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:26:55,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55 WrapperNode [2020-10-29 03:26:55,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:26:55,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:26:55,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:26:55,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:26:55,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (1/1) ... [2020-10-29 03:26:55,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:26:55,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:26:55,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:26:55,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:26:55,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (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 03:26:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:26:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:26:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:26:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 03:26:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:26:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:26:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:26:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:26:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:26:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:26:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 03:26:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:26:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-29 03:26:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:26:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:26:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:26:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:26:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:26:55,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:26:55,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:26:56,599 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:26:56,599 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-29 03:26:56,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:26:56 BoogieIcfgContainer [2020-10-29 03:26:56,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:26:56,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:26:56,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:26:56,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:26:56,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:26:55" (1/3) ... [2020-10-29 03:26:56,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312edacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:26:56, skipping insertion in model container [2020-10-29 03:26:56,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:26:55" (2/3) ... [2020-10-29 03:26:56,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312edacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:26:56, skipping insertion in model container [2020-10-29 03:26:56,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:26:56" (3/3) ... [2020-10-29 03:26:56,618 INFO L111 eAbstractionObserver]: Analyzing ICFG zero_sum_m4.c [2020-10-29 03:26:56,633 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:26:56,639 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:26:56,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:26:56,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:26:56,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:26:56,710 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:26:56,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:26:56,711 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:26:56,711 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:26:56,712 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:26:56,712 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:26:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-29 03:26:56,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 03:26:56,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:26:56,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:26:56,751 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:26:56,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:26:56,763 INFO L82 PathProgramCache]: Analyzing trace with hash 784075536, now seen corresponding path program 1 times [2020-10-29 03:26:56,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:26:56,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742982611] [2020-10-29 03:26:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:26:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:26:57,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:26:58,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:01,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:01,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 03:27:01,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 03:27:01,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4493 [2020-10-29 03:27:01,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:01,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:27:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:27:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 03:27:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 03:27:01,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:01,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:01,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:01,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:01,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 03:27:01,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:01,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:27:01,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742982611] [2020-10-29 03:27:01,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:27:01,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 03:27:01,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639929798] [2020-10-29 03:27:01,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:27:01,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:01,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:27:01,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:27:01,741 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2020-10-29 03:27:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:02,158 INFO L93 Difference]: Finished difference Result 109 states and 161 transitions. [2020-10-29 03:27:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:27:02,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-29 03:27:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:02,171 INFO L225 Difference]: With dead ends: 109 [2020-10-29 03:27:02,171 INFO L226 Difference]: Without dead ends: 55 [2020-10-29 03:27:02,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:27:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-29 03:27:02,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2020-10-29 03:27:02,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-29 03:27:02,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2020-10-29 03:27:02,257 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 29 [2020-10-29 03:27:02,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:02,258 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2020-10-29 03:27:02,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:27:02,258 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2020-10-29 03:27:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 03:27:02,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:02,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:02,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:27:02,264 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:02,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:02,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1846873870, now seen corresponding path program 1 times [2020-10-29 03:27:02,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:02,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306418937] [2020-10-29 03:27:02,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:02,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:02,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:02,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:02,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:02,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:03,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:07,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:07,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-29 03:27:07,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 03:27:07,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 03:27:07,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:07,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:27:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:27:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 03:27:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:07,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:07,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:07,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:07,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:07,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:27:07,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:07,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:07,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 03:27:07,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306418937] [2020-10-29 03:27:07,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:27:07,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 03:27:07,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849277722] [2020-10-29 03:27:07,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 03:27:07,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:07,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 03:27:07,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:27:07,408 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 6 states. [2020-10-29 03:27:07,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:07,699 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2020-10-29 03:27:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 03:27:07,699 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-29 03:27:07,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:07,701 INFO L225 Difference]: With dead ends: 97 [2020-10-29 03:27:07,701 INFO L226 Difference]: Without dead ends: 63 [2020-10-29 03:27:07,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:27:07,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-29 03:27:07,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-29 03:27:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-29 03:27:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-10-29 03:27:07,715 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 45 [2020-10-29 03:27:07,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:07,715 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-10-29 03:27:07,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 03:27:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2020-10-29 03:27:07,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-29 03:27:07,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:07,720 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:07,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:27:07,721 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:07,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:07,721 INFO L82 PathProgramCache]: Analyzing trace with hash -350043134, now seen corresponding path program 2 times [2020-10-29 03:27:07,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:07,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208413014] [2020-10-29 03:27:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:07,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:07,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:08,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:10,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:10,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:12,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:12,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:12,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 03:27:12,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 03:27:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 03:27:12,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:12,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-29 03:27:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:27:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 03:27:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:14,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:14,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:14,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:14,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:14,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:14,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:27:14,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:14,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:14,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:27:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:27:14,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208413014] [2020-10-29 03:27:14,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:27:14,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-29 03:27:14,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350372693] [2020-10-29 03:27:14,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-29 03:27:14,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:14,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-29 03:27:14,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=982, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 03:27:14,602 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 33 states. [2020-10-29 03:27:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:16,373 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2020-10-29 03:27:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 03:27:16,374 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 61 [2020-10-29 03:27:16,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:16,377 INFO L225 Difference]: With dead ends: 116 [2020-10-29 03:27:16,378 INFO L226 Difference]: Without dead ends: 110 [2020-10-29 03:27:16,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=84, Invalid=1106, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 03:27:16,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-29 03:27:16,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2020-10-29 03:27:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-29 03:27:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2020-10-29 03:27:16,416 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 61 [2020-10-29 03:27:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:16,417 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2020-10-29 03:27:16,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-29 03:27:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2020-10-29 03:27:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 03:27:16,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:16,421 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:16,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:27:16,421 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:16,422 INFO L82 PathProgramCache]: Analyzing trace with hash 991755204, now seen corresponding path program 3 times [2020-10-29 03:27:16,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:16,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396950842] [2020-10-29 03:27:16,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:16,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:16,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:16,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:16,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:16,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:16,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:21,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:21,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 03:27:21,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 03:27:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 03:27:21,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:21,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:27:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 03:27:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 03:27:21,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:21,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:21,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:21,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:21,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:21,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:21,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:27:21,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:21,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:21,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:21,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 03:27:21,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396950842] [2020-10-29 03:27:21,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:27:21,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:27:21,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171080502] [2020-10-29 03:27:21,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:27:21,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:21,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:27:21,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:27:21,575 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 10 states. [2020-10-29 03:27:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:22,224 INFO L93 Difference]: Finished difference Result 163 states and 190 transitions. [2020-10-29 03:27:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:27:22,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-10-29 03:27:22,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:22,226 INFO L225 Difference]: With dead ends: 163 [2020-10-29 03:27:22,228 INFO L226 Difference]: Without dead ends: 121 [2020-10-29 03:27:22,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:27:22,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-29 03:27:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 110. [2020-10-29 03:27:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-29 03:27:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2020-10-29 03:27:22,263 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 63 [2020-10-29 03:27:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:22,264 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2020-10-29 03:27:22,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:27:22,264 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2020-10-29 03:27:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 03:27:22,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:22,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:22,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 03:27:22,268 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:22,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:22,269 INFO L82 PathProgramCache]: Analyzing trace with hash -951692028, now seen corresponding path program 4 times [2020-10-29 03:27:22,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:22,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121702543] [2020-10-29 03:27:22,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:22,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:22,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:22,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:22,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:22,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:23,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:27,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:27,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 03:27:27,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 03:27:27,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 03:27:27,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:27,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:27:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 03:27:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 03:27:27,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:27,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:27,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:27,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:27,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:27,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:27,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:27:27,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:27,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:27,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:27,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:27,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:27,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 03:27:27,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121702543] [2020-10-29 03:27:27,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:27:27,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:27:27,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815758935] [2020-10-29 03:27:27,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:27:27,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:27,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:27:27,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:27:27,437 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 10 states. [2020-10-29 03:27:27,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:27,879 INFO L93 Difference]: Finished difference Result 185 states and 206 transitions. [2020-10-29 03:27:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:27:27,880 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-10-29 03:27:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:27,881 INFO L225 Difference]: With dead ends: 185 [2020-10-29 03:27:27,881 INFO L226 Difference]: Without dead ends: 87 [2020-10-29 03:27:27,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:27:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-29 03:27:27,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 79. [2020-10-29 03:27:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-29 03:27:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-10-29 03:27:27,893 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 63 [2020-10-29 03:27:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:27,893 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-10-29 03:27:27,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:27:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-10-29 03:27:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-29 03:27:27,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:27,895 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:27,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 03:27:27,896 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:27,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:27,896 INFO L82 PathProgramCache]: Analyzing trace with hash -904153326, now seen corresponding path program 5 times [2020-10-29 03:27:27,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:27,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126421271] [2020-10-29 03:27:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:27,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:27,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:28,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:30,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:32,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:33,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 03:27:33,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 03:27:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5770 [2020-10-29 03:27:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:33,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-29 03:27:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:27:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 03:27:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:37,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:37,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:37,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:37,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:37,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:27:37,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:37,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:27:37,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126421271] [2020-10-29 03:27:37,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:27:37,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2020-10-29 03:27:37,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553105534] [2020-10-29 03:27:37,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-10-29 03:27:37,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:37,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-10-29 03:27:37,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=2637, Unknown=0, NotChecked=0, Total=2756 [2020-10-29 03:27:37,442 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 53 states. [2020-10-29 03:27:40,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:40,819 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2020-10-29 03:27:40,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-29 03:27:40,821 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 77 [2020-10-29 03:27:40,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:40,823 INFO L225 Difference]: With dead ends: 144 [2020-10-29 03:27:40,823 INFO L226 Difference]: Without dead ends: 138 [2020-10-29 03:27:40,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=139, Invalid=3053, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 03:27:40,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-29 03:27:40,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 132. [2020-10-29 03:27:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-29 03:27:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 147 transitions. [2020-10-29 03:27:40,844 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 147 transitions. Word has length 77 [2020-10-29 03:27:40,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:40,844 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 147 transitions. [2020-10-29 03:27:40,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-10-29 03:27:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 147 transitions. [2020-10-29 03:27:40,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-29 03:27:40,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:40,846 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:40,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 03:27:40,846 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:40,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:40,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1655790292, now seen corresponding path program 6 times [2020-10-29 03:27:40,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:40,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990256627] [2020-10-29 03:27:40,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:40,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:40,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:40,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:40,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:41,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:45,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:45,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 03:27:45,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 03:27:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 03:27:45,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:45,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:27:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-29 03:27:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 03:27:45,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:45,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:45,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:45,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:45,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:45,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:27:45,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:45,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-29 03:27:45,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990256627] [2020-10-29 03:27:45,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:27:45,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:27:45,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541456177] [2020-10-29 03:27:45,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:27:45,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:45,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:27:45,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:27:45,991 INFO L87 Difference]: Start difference. First operand 132 states and 147 transitions. Second operand 12 states. [2020-10-29 03:27:46,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:46,796 INFO L93 Difference]: Finished difference Result 205 states and 232 transitions. [2020-10-29 03:27:46,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:27:46,797 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-29 03:27:46,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:46,800 INFO L225 Difference]: With dead ends: 205 [2020-10-29 03:27:46,800 INFO L226 Difference]: Without dead ends: 151 [2020-10-29 03:27:46,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2020-10-29 03:27:46,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-29 03:27:46,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 136. [2020-10-29 03:27:46,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-29 03:27:46,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 150 transitions. [2020-10-29 03:27:46,821 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 150 transitions. Word has length 79 [2020-10-29 03:27:46,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:46,822 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 150 transitions. [2020-10-29 03:27:46,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:27:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 150 transitions. [2020-10-29 03:27:46,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-29 03:27:46,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:46,824 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:46,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 03:27:46,824 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:46,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:46,825 INFO L82 PathProgramCache]: Analyzing trace with hash -875641836, now seen corresponding path program 7 times [2020-10-29 03:27:46,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:46,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028669289] [2020-10-29 03:27:46,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:46,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:46,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:46,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:46,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:47,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:51,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-29 03:27:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:51,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:27:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:51,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:51,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:51,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:27:51,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:27:51,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:27:51,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:51,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:51,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:27:51,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:27:51,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:27:51,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:27:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-29 03:27:51,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028669289] [2020-10-29 03:27:51,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:27:51,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:27:51,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930396374] [2020-10-29 03:27:51,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:27:51,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:27:51,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:27:51,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:27:51,988 INFO L87 Difference]: Start difference. First operand 136 states and 150 transitions. Second operand 12 states. [2020-10-29 03:27:52,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:27:52,710 INFO L93 Difference]: Finished difference Result 227 states and 248 transitions. [2020-10-29 03:27:52,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:27:52,712 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-29 03:27:52,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:27:52,713 INFO L225 Difference]: With dead ends: 227 [2020-10-29 03:27:52,714 INFO L226 Difference]: Without dead ends: 103 [2020-10-29 03:27:52,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:27:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-29 03:27:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2020-10-29 03:27:52,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-29 03:27:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2020-10-29 03:27:52,751 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 79 [2020-10-29 03:27:52,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:27:52,752 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2020-10-29 03:27:52,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:27:52,752 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2020-10-29 03:27:52,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 03:27:52,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:27:52,757 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:27:52,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 03:27:52,758 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:27:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:27:52,766 INFO L82 PathProgramCache]: Analyzing trace with hash -44709342, now seen corresponding path program 8 times [2020-10-29 03:27:52,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:27:52,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687693134] [2020-10-29 03:27:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:27:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:27:52,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:52,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:54,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:27:58,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:27:58,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 03:27:58,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 03:27:58,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5685 [2020-10-29 03:27:58,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:27:58,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:27:58,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-29 03:27:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:27:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 03:27:58,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:28:05,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:28:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:28:05,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:05,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:28:05,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:28:05,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:28:05,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:28:05,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:28:05,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:28:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:28:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:28:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:28:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:28:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:28:05,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687693134] [2020-10-29 03:28:05,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:28:05,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2020-10-29 03:28:05,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117995220] [2020-10-29 03:28:05,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-10-29 03:28:05,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:28:05,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-10-29 03:28:05,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=4954, Unknown=0, NotChecked=0, Total=5112 [2020-10-29 03:28:05,986 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand 72 states. [2020-10-29 03:28:17,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:28:17,318 INFO L93 Difference]: Finished difference Result 173 states and 188 transitions. [2020-10-29 03:28:17,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-10-29 03:28:17,319 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 93 [2020-10-29 03:28:17,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:28:17,320 INFO L225 Difference]: With dead ends: 173 [2020-10-29 03:28:17,321 INFO L226 Difference]: Without dead ends: 167 [2020-10-29 03:28:17,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1494 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=397, Invalid=12035, Unknown=0, NotChecked=0, Total=12432 [2020-10-29 03:28:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-29 03:28:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 160. [2020-10-29 03:28:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-29 03:28:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 175 transitions. [2020-10-29 03:28:17,343 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 175 transitions. Word has length 93 [2020-10-29 03:28:17,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:28:17,343 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 175 transitions. [2020-10-29 03:28:17,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-10-29 03:28:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 175 transitions. [2020-10-29 03:28:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-29 03:28:17,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:28:17,345 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:28:17,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 03:28:17,345 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:28:17,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:28:17,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1927469540, now seen corresponding path program 9 times [2020-10-29 03:28:17,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:28:17,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602919886] [2020-10-29 03:28:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:28:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:28:17,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:17,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:17,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:17,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:18,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:22,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:28:22,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 03:28:22,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 03:28:22,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 03:28:22,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:28:22,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:28:22,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:28:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 03:28:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 03:28:22,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:28:22,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:28:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:28:22,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:22,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:28:22,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:28:22,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:28:22,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:28:22,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:28:22,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:28:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:28:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:28:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:28:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:28:22,571 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-29 03:28:22,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602919886] [2020-10-29 03:28:22,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:28:22,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:28:22,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485751457] [2020-10-29 03:28:22,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:28:22,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:28:22,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:28:22,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:28:22,577 INFO L87 Difference]: Start difference. First operand 160 states and 175 transitions. Second operand 14 states. [2020-10-29 03:28:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:28:24,009 INFO L93 Difference]: Finished difference Result 247 states and 274 transitions. [2020-10-29 03:28:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 03:28:24,010 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-29 03:28:24,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:28:24,011 INFO L225 Difference]: With dead ends: 247 [2020-10-29 03:28:24,011 INFO L226 Difference]: Without dead ends: 181 [2020-10-29 03:28:24,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2020-10-29 03:28:24,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-29 03:28:24,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 162. [2020-10-29 03:28:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-29 03:28:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 176 transitions. [2020-10-29 03:28:24,029 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 176 transitions. Word has length 95 [2020-10-29 03:28:24,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:28:24,029 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 176 transitions. [2020-10-29 03:28:24,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:28:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 176 transitions. [2020-10-29 03:28:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-29 03:28:24,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:28:24,031 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:28:24,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 03:28:24,031 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:28:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:28:24,032 INFO L82 PathProgramCache]: Analyzing trace with hash 416305956, now seen corresponding path program 10 times [2020-10-29 03:28:24,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:28:24,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849505559] [2020-10-29 03:28:24,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:28:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:28:24,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:24,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:24,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:24,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:24,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:29,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:28:29,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 03:28:29,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 03:28:29,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 03:28:29,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:28:29,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:28:29,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:28:29,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 03:28:29,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 03:28:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:28:29,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:28:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:28:29,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:29,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:28:29,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:28:29,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:28:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:28:29,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:28:29,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:28:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:28:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:28:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:28:29,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:28:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-29 03:28:29,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849505559] [2020-10-29 03:28:29,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:28:29,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:28:29,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242590911] [2020-10-29 03:28:29,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:28:29,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:28:29,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:28:29,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:28:29,227 INFO L87 Difference]: Start difference. First operand 162 states and 176 transitions. Second operand 14 states. [2020-10-29 03:28:30,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:28:30,103 INFO L93 Difference]: Finished difference Result 269 states and 290 transitions. [2020-10-29 03:28:30,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:28:30,104 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-29 03:28:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:28:30,106 INFO L225 Difference]: With dead ends: 269 [2020-10-29 03:28:30,106 INFO L226 Difference]: Without dead ends: 119 [2020-10-29 03:28:30,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:28:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-29 03:28:30,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2020-10-29 03:28:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-29 03:28:30,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2020-10-29 03:28:30,117 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 95 [2020-10-29 03:28:30,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:28:30,118 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2020-10-29 03:28:30,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:28:30,118 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2020-10-29 03:28:30,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 03:28:30,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:28:30,119 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:28:30,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 03:28:30,119 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:28:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:28:30,120 INFO L82 PathProgramCache]: Analyzing trace with hash -816775886, now seen corresponding path program 11 times [2020-10-29 03:28:30,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:28:30,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884537640] [2020-10-29 03:28:30,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:28:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:28:30,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:30,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:32,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:35,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:28:35,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 03:28:35,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:28:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-29 03:28:35,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:28:35,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:28:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 88 [2020-10-29 03:28:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:28:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 03:28:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:28:37,535 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-10-29 03:28:37,795 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-10-29 03:28:38,033 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-29 03:28:38,266 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-29 03:28:38,536 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-29 03:28:38,775 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-10-29 03:28:39,016 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-10-29 03:28:39,246 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-10-29 03:28:39,485 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-10-29 03:28:39,962 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-10-29 03:28:40,200 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-10-29 03:28:41,104 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-10-29 03:28:41,334 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-10-29 03:28:41,585 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2020-10-29 03:28:41,909 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-29 03:28:42,226 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-10-29 03:28:42,746 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2020-10-29 03:28:43,008 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-10-29 03:28:43,341 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-10-29 03:28:43,700 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-10-29 03:28:44,047 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-10-29 03:28:44,385 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-29 03:28:44,684 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-10-29 03:28:44,993 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-10-29 03:28:45,307 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-10-29 03:28:45,633 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-29 03:28:45,942 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-29 03:28:49,336 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-10-29 03:28:49,968 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-10-29 03:28:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:28:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:28:55,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:28:55,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:28:55,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:28:55,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:28:55,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:28:55,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:28:55,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:28:55,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:28:55,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:28:55,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:28:55,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:28:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 7 proven. 193 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:28:55,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884537640] [2020-10-29 03:28:55,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:28:55,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2020-10-29 03:28:55,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918574289] [2020-10-29 03:28:55,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 90 states [2020-10-29 03:28:55,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:28:55,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2020-10-29 03:28:55,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=459, Invalid=7551, Unknown=0, NotChecked=0, Total=8010 [2020-10-29 03:28:55,787 INFO L87 Difference]: Start difference. First operand 111 states and 119 transitions. Second operand 90 states. [2020-10-29 03:28:56,251 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 3 [2020-10-29 03:28:56,913 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 36 [2020-10-29 03:28:59,134 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2020-10-29 03:28:59,521 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2020-10-29 03:29:00,493 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-29 03:29:00,955 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2020-10-29 03:29:01,669 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-29 03:29:02,103 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2020-10-29 03:29:02,878 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2020-10-29 03:29:03,874 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2020-10-29 03:29:04,485 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-10-29 03:29:05,154 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2020-10-29 03:29:05,559 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-29 03:29:06,030 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2020-10-29 03:29:06,890 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 97 [2020-10-29 03:29:07,404 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-10-29 03:29:08,066 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 83 [2020-10-29 03:29:11,250 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2020-10-29 03:29:12,247 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2020-10-29 03:29:13,563 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 102 [2020-10-29 03:29:14,524 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2020-10-29 03:29:15,222 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-29 03:29:15,975 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-29 03:29:16,702 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-29 03:29:17,427 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 03:29:18,136 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2020-10-29 03:29:18,678 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 43 [2020-10-29 03:29:19,284 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-29 03:29:20,193 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 86 [2020-10-29 03:29:20,822 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-29 03:29:21,526 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-29 03:29:22,178 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2020-10-29 03:29:23,560 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 102 [2020-10-29 03:29:24,475 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 70 [2020-10-29 03:29:25,619 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 87 [2020-10-29 03:29:26,444 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 45 [2020-10-29 03:29:27,343 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 69 [2020-10-29 03:29:28,217 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 47 [2020-10-29 03:29:29,522 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 76 [2020-10-29 03:29:30,285 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 42 [2020-10-29 03:29:31,153 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 63 [2020-10-29 03:29:32,140 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 75 [2020-10-29 03:29:32,669 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2020-10-29 03:29:33,706 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2020-10-29 03:29:34,267 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37 [2020-10-29 03:29:35,409 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2020-10-29 03:29:35,979 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2020-10-29 03:29:37,210 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2020-10-29 03:29:37,829 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 42 [2020-10-29 03:29:38,774 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2020-10-29 03:29:39,382 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2020-10-29 03:29:40,224 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-29 03:29:41,014 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2020-10-29 03:29:41,945 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2020-10-29 03:29:43,013 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 43 [2020-10-29 03:29:44,604 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 91 [2020-10-29 03:29:45,879 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 84 [2020-10-29 03:29:48,348 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 55 [2020-10-29 03:29:49,436 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 50 [2020-10-29 03:29:50,147 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2020-10-29 03:29:51,304 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 63 [2020-10-29 03:29:51,985 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2020-10-29 03:29:53,147 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 68 [2020-10-29 03:29:53,594 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-10-29 03:29:54,188 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 52 [2020-10-29 03:29:54,802 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2020-10-29 03:29:55,948 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 57 [2020-10-29 03:29:56,719 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 55 [2020-10-29 03:29:57,301 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2020-10-29 03:29:58,380 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 61 [2020-10-29 03:29:59,099 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 60 [2020-10-29 03:29:59,683 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-29 03:30:00,974 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 71 [2020-10-29 03:30:01,738 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 53 [2020-10-29 03:30:03,088 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 69 [2020-10-29 03:30:03,825 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 52 [2020-10-29 03:30:04,465 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2020-10-29 03:30:05,777 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2020-10-29 03:30:06,555 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 50 [2020-10-29 03:30:07,973 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 71 [2020-10-29 03:30:08,741 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 46 [2020-10-29 03:30:10,079 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2020-10-29 03:30:11,544 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2020-10-29 03:30:12,264 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2020-10-29 03:30:14,169 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 68 [2020-10-29 03:30:14,979 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 46 [2020-10-29 03:30:16,122 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2020-10-29 03:30:17,250 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2020-10-29 03:30:18,432 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 55 [2020-10-29 03:30:19,344 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 49 [2020-10-29 03:30:20,675 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 54 [2020-10-29 03:30:21,597 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 45 [2020-10-29 03:30:23,098 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 56 [2020-10-29 03:30:24,125 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 42 [2020-10-29 03:30:25,278 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 51 [2020-10-29 03:30:26,162 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2020-10-29 03:30:27,394 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 53 [2020-10-29 03:30:28,371 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 45 [2020-10-29 03:30:29,792 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-29 03:30:30,674 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2020-10-29 03:30:32,159 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 71 [2020-10-29 03:30:33,345 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2020-10-29 03:30:34,769 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2020-10-29 03:30:36,306 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-29 03:30:37,285 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2020-10-29 03:30:38,547 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2020-10-29 03:30:39,684 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41