/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=0.2 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:42:51,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:42:51,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:42:51,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:42:51,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:42:51,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:42:51,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:42:51,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:42:51,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:42:51,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:42:51,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:42:51,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:42:51,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:42:51,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:42:51,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:42:51,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:42:51,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:42:51,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:42:51,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:42:51,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:42:51,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:42:51,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:42:51,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:42:51,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:42:51,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:42:51,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:42:51,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:42:51,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:42:51,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:42:51,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:42:51,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:42:51,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:42:51,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:42:51,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:42:51,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:42:51,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:42:51,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:42:51,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:42:51,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:42:51,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:42:51,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:42:51,633 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 [2020-10-14 22:42:51,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:42:51,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:42:51,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:42:51,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:42:51,680 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:42:51,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:42:51,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:42:51,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:42:51,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:42:51,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:42:51,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:42:51,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:42:51,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:42:51,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:42:51,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:42:51,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:42:51,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:42:51,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:42:51,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:42:51,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:42:51,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:42:51,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:42:51,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:42:51,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:42:51,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:42:51,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:42:51,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:42:51,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:42:51,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:42:51,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:42:52,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:42:52,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:42:52,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:42:52,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:42:52,056 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:42:52,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label11.c [2020-10-14 22:42:52,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/332b94443/2ae806746130405b9592b3505610bed3/FLAG0c6630121 [2020-10-14 22:42:52,971 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:42:52,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label11.c [2020-10-14 22:42:53,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/332b94443/2ae806746130405b9592b3505610bed3/FLAG0c6630121 [2020-10-14 22:42:53,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/332b94443/2ae806746130405b9592b3505610bed3 [2020-10-14 22:42:53,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:42:53,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:42:53,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:42:53,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:42:53,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:42:53,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:42:53" (1/1) ... [2020-10-14 22:42:53,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d970015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:53, skipping insertion in model container [2020-10-14 22:42:53,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:42:53" (1/1) ... [2020-10-14 22:42:53,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:42:53,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:42:54,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:42:54,892 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:42:55,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:42:55,523 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:42:55,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55 WrapperNode [2020-10-14 22:42:55,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:42:55,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:42:55,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:42:55,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:42:55,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (1/1) ... [2020-10-14 22:42:55,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (1/1) ... [2020-10-14 22:42:55,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (1/1) ... [2020-10-14 22:42:55,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (1/1) ... [2020-10-14 22:42:55,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (1/1) ... [2020-10-14 22:42:55,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (1/1) ... [2020-10-14 22:42:55,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (1/1) ... [2020-10-14 22:42:55,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:42:55,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:42:55,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:42:55,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:42:55,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (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 [2020-10-14 22:42:55,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:42:55,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:42:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:42:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:42:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:42:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:42:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:42:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:42:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:42:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:42:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:42:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:42:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:42:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:42:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:43:02,821 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:43:02,821 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:43:02,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:43:02 BoogieIcfgContainer [2020-10-14 22:43:02,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:43:02,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:43:02,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:43:02,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:43:02,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:42:53" (1/3) ... [2020-10-14 22:43:02,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9572b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:43:02, skipping insertion in model container [2020-10-14 22:43:02,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:42:55" (2/3) ... [2020-10-14 22:43:02,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9572b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:43:02, skipping insertion in model container [2020-10-14 22:43:02,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:43:02" (3/3) ... [2020-10-14 22:43:02,857 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label11.c [2020-10-14 22:43:02,873 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:43:02,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:43:02,905 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:43:02,941 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:43:02,941 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:43:02,941 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:43:02,942 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:43:02,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:43:02,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:43:02,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:43:02,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:43:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:43:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 22:43:02,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:43:02,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:43:02,994 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:43:03,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:43:03,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1042189663, now seen corresponding path program 1 times [2020-10-14 22:43:03,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:43:03,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539811033] [2020-10-14 22:43:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:43:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:03,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:03,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:03,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 22:43:03,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:03,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-14 22:43:03,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:03,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:03,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:43:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:43:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 22:43:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:43:03,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:43:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:03,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:03,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:03,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:43:03,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:43:03,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:03,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:43:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:43:03,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:43:03,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539811033] [2020-10-14 22:43:03,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:43:03,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:43:03,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632170824] [2020-10-14 22:43:03,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:43:03,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:43:03,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:43:03,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:43:03,887 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:43:13,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:43:13,954 INFO L93 Difference]: Finished difference Result 2286 states and 4361 transitions. [2020-10-14 22:43:13,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:43:13,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-14 22:43:13,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:43:13,984 INFO L225 Difference]: With dead ends: 2286 [2020-10-14 22:43:13,984 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:43:13,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:43:14,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:43:14,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1420. [2020-10-14 22:43:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1420 states. [2020-10-14 22:43:14,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 2251 transitions. [2020-10-14 22:43:14,168 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 2251 transitions. Word has length 48 [2020-10-14 22:43:14,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:43:14,169 INFO L479 AbstractCegarLoop]: Abstraction has 1420 states and 2251 transitions. [2020-10-14 22:43:14,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:43:14,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 2251 transitions. [2020-10-14 22:43:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-14 22:43:14,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:43:14,175 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:43:14,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:43:14,176 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:43:14,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:43:14,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1749981219, now seen corresponding path program 1 times [2020-10-14 22:43:14,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:43:14,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764681465] [2020-10-14 22:43:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:43:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:14,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:14,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:15,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:15,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 22:43:15,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:43:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1306 [2020-10-14 22:43:15,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:15,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:43:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:43:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:43:15,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:43:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:43:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:15,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:43:15,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:43:15,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:15,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:43:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:15,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:43:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:43:15,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:43:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:15,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:15,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:15,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:43:15,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:15,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 22:43:15,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:15,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:43:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:43:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:43:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:43:15,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764681465] [2020-10-14 22:43:15,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:43:15,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:43:15,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486506882] [2020-10-14 22:43:15,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:43:15,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:43:15,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:43:15,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:43:15,852 INFO L87 Difference]: Start difference. First operand 1420 states and 2251 transitions. Second operand 7 states. [2020-10-14 22:43:28,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:43:28,653 INFO L93 Difference]: Finished difference Result 3605 states and 5922 transitions. [2020-10-14 22:43:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:43:28,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-14 22:43:28,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:43:28,667 INFO L225 Difference]: With dead ends: 3605 [2020-10-14 22:43:28,667 INFO L226 Difference]: Without dead ends: 2191 [2020-10-14 22:43:28,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:43:28,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2020-10-14 22:43:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2138. [2020-10-14 22:43:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2138 states. [2020-10-14 22:43:28,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 2912 transitions. [2020-10-14 22:43:28,745 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 2912 transitions. Word has length 117 [2020-10-14 22:43:28,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:43:28,746 INFO L479 AbstractCegarLoop]: Abstraction has 2138 states and 2912 transitions. [2020-10-14 22:43:28,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:43:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 2912 transitions. [2020-10-14 22:43:28,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-14 22:43:28,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:43:28,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:43:28,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:43:28,750 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:43:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:43:28,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1739833573, now seen corresponding path program 1 times [2020-10-14 22:43:28,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:43:28,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613981574] [2020-10-14 22:43:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:43:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:28,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:28,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 22:43:30,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:43:30,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1294 [2020-10-14 22:43:30,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:43:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:43:30,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:43:30,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:30,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:43:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:30,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:43:30,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:43:30,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:43:30,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:30,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:43:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:30,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:43:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:30,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:43:30,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 22:43:30,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:43:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:43:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:43:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:43:30,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613981574] [2020-10-14 22:43:30,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:43:30,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:43:30,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920405604] [2020-10-14 22:43:30,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:43:30,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:43:30,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:43:30,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:43:30,668 INFO L87 Difference]: Start difference. First operand 2138 states and 2912 transitions. Second operand 7 states. [2020-10-14 22:43:40,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:43:40,206 INFO L93 Difference]: Finished difference Result 5100 states and 6708 transitions. [2020-10-14 22:43:40,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:43:40,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-10-14 22:43:40,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:43:40,224 INFO L225 Difference]: With dead ends: 5100 [2020-10-14 22:43:40,225 INFO L226 Difference]: Without dead ends: 2968 [2020-10-14 22:43:40,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:43:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2020-10-14 22:43:40,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2864. [2020-10-14 22:43:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2864 states. [2020-10-14 22:43:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 3663 transitions. [2020-10-14 22:43:40,328 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 3663 transitions. Word has length 145 [2020-10-14 22:43:40,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:43:40,330 INFO L479 AbstractCegarLoop]: Abstraction has 2864 states and 3663 transitions. [2020-10-14 22:43:40,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:43:40,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 3663 transitions. [2020-10-14 22:43:40,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-14 22:43:40,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:43:40,346 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:43:40,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:43:40,346 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:43:40,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:43:40,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1397865874, now seen corresponding path program 1 times [2020-10-14 22:43:40,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:43:40,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980705748] [2020-10-14 22:43:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:43:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:40,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:40,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:40,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:41,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:41,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-14 22:43:41,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:43:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1399 [2020-10-14 22:43:41,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:41,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:41,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:43:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:43:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:43:41,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:41,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:43:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:41,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:41,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:41,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:43:41,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:41,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:43:41,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:41,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:41,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:41,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:41,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:41,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:41,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:43:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:41,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:42,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:42,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:43:42,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:42,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 22:43:42,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:42,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:43:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:43:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:42,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:43:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:42,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:42,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:42,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:43:42,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:42,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 22:43:42,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:42,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:43:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:43:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:43:42,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:43:42,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980705748] [2020-10-14 22:43:42,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:43:42,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:43:42,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229902220] [2020-10-14 22:43:42,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:43:42,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:43:42,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:43:42,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:43:42,959 INFO L87 Difference]: Start difference. First operand 2864 states and 3663 transitions. Second operand 7 states. [2020-10-14 22:44:03,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:44:03,648 INFO L93 Difference]: Finished difference Result 6527 states and 8894 transitions. [2020-10-14 22:44:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:44:03,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 331 [2020-10-14 22:44:03,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:44:03,664 INFO L225 Difference]: With dead ends: 6527 [2020-10-14 22:44:03,664 INFO L226 Difference]: Without dead ends: 2927 [2020-10-14 22:44:03,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:44:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-10-14 22:44:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2857. [2020-10-14 22:44:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2857 states. [2020-10-14 22:44:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 3294 transitions. [2020-10-14 22:44:03,738 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 3294 transitions. Word has length 331 [2020-10-14 22:44:03,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:44:03,739 INFO L479 AbstractCegarLoop]: Abstraction has 2857 states and 3294 transitions. [2020-10-14 22:44:03,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:44:03,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 3294 transitions. [2020-10-14 22:44:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-14 22:44:03,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:44:03,744 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:44:03,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:44:03,745 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:44:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:44:03,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1294563151, now seen corresponding path program 1 times [2020-10-14 22:44:03,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:44:03,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828323029] [2020-10-14 22:44:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:44:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:03,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:03,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:04,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:07,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:07,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-14 22:44:07,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:44:07,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3561 [2020-10-14 22:44:07,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:07,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:44:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:44:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:44:07,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:07,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:44:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:07,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:07,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:44:07,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:44:07,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:07,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:44:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:07,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:44:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:07,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:08,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:44:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-14 22:44:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:08,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:44:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:44:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:44:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:08,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:44:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:08,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:08,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:44:08,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:08,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:44:08,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:08,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:44:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:44:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:44:08,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:08,767 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:44:08,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828323029] [2020-10-14 22:44:08,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:44:08,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:44:08,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809904595] [2020-10-14 22:44:08,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:44:08,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:44:08,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:44:08,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:44:08,770 INFO L87 Difference]: Start difference. First operand 2857 states and 3294 transitions. Second operand 8 states. [2020-10-14 22:44:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:44:18,138 INFO L93 Difference]: Finished difference Result 7294 states and 8685 transitions. [2020-10-14 22:44:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:44:18,140 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 355 [2020-10-14 22:44:18,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:44:18,158 INFO L225 Difference]: With dead ends: 7294 [2020-10-14 22:44:18,158 INFO L226 Difference]: Without dead ends: 5145 [2020-10-14 22:44:18,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:44:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5145 states. [2020-10-14 22:44:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5145 to 5083. [2020-10-14 22:44:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5083 states. [2020-10-14 22:44:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 5853 transitions. [2020-10-14 22:44:18,272 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 5853 transitions. Word has length 355 [2020-10-14 22:44:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:44:18,272 INFO L479 AbstractCegarLoop]: Abstraction has 5083 states and 5853 transitions. [2020-10-14 22:44:18,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:44:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 5853 transitions. [2020-10-14 22:44:18,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2020-10-14 22:44:18,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:44:18,301 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:44:18,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:44:18,302 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:44:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:44:18,302 INFO L82 PathProgramCache]: Analyzing trace with hash 366136759, now seen corresponding path program 1 times [2020-10-14 22:44:18,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:44:18,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711869921] [2020-10-14 22:44:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:44:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:18,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:18,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:21,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:23,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:23,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 900 [2020-10-14 22:44:23,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:44:23,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-14 22:44:23,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:23,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 22:44:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:44:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 894 [2020-10-14 22:44:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:44:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:23,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:23,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:44:23,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:23,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:44:23,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:23,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:44:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:23,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:44:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:24,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:25,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:25,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:44:25,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:44:25,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1332 [2020-10-14 22:44:25,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:25,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 520 [2020-10-14 22:44:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:44:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:25,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:25,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:44:25,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:44:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:25,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-14 22:44:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:25,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:44:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:25,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:25,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:25,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:44:25,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:25,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:44:25,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:25,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:25,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 22:44:25,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:25,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:44:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:25,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:26,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:26,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:44:26,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:44:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-14 22:44:26,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:26,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:26,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:44:26,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:26,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:44:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:26,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:26,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:26,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:44:26,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:26,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:44:26,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:26,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:44:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:27,048 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-14 22:44:27,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711869921] [2020-10-14 22:44:27,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:44:27,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:44:27,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392343872] [2020-10-14 22:44:27,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:44:27,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:44:27,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:44:27,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:44:27,051 INFO L87 Difference]: Start difference. First operand 5083 states and 5853 transitions. Second operand 5 states. [2020-10-14 22:44:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:44:34,954 INFO L93 Difference]: Finished difference Result 11662 states and 14135 transitions. [2020-10-14 22:44:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:44:34,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 882 [2020-10-14 22:44:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:44:34,990 INFO L225 Difference]: With dead ends: 11662 [2020-10-14 22:44:34,990 INFO L226 Difference]: Without dead ends: 7997 [2020-10-14 22:44:35,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:44:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7997 states. [2020-10-14 22:44:35,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7997 to 7268. [2020-10-14 22:44:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7268 states. [2020-10-14 22:44:35,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7268 states to 7268 states and 8472 transitions. [2020-10-14 22:44:35,153 INFO L78 Accepts]: Start accepts. Automaton has 7268 states and 8472 transitions. Word has length 882 [2020-10-14 22:44:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:44:35,155 INFO L479 AbstractCegarLoop]: Abstraction has 7268 states and 8472 transitions. [2020-10-14 22:44:35,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:44:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states and 8472 transitions. [2020-10-14 22:44:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2020-10-14 22:44:35,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:44:35,200 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:44:35,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:44:35,201 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:44:35,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:44:35,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1469849887, now seen corresponding path program 1 times [2020-10-14 22:44:35,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:44:35,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82470868] [2020-10-14 22:44:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:44:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:35,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:35,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:39,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:40,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:40,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 991 [2020-10-14 22:44:40,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:44:40,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:44:40,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:40,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:40,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 22:44:40,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:44:40,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 939 [2020-10-14 22:44:40,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:40,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:44:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:40,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:40,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:40,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:44:40,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:40,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:44:40,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:40,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:44:40,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:40,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:44:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:40,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:41,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:42,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:42,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:44:42,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:44:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1334 [2020-10-14 22:44:42,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:42,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:42,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 520 [2020-10-14 22:44:42,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:42,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:44:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:42,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:42,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:42,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:44:42,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:42,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 22:44:42,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:42,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-14 22:44:42,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:44:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:42,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:42,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:42,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:44:42,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:44:42,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:42,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:42,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:42,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:42,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 22:44:42,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:42,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:44:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:42,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:42,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:43,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:43,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:44:43,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:44:43,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-14 22:44:43,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:43,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:44:43,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:43,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:44:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:43,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:43,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:43,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:44:43,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:44:43,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:43,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:44:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:43,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:44:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:43,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:43,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:43,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:44:43,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:43,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:44:43,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:43,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:43,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:44:43,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:44:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:44:43,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 289 proven. 4 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-10-14 22:44:43,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82470868] [2020-10-14 22:44:43,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:44:43,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:44:43,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546786264] [2020-10-14 22:44:43,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:44:43,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:44:43,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:44:43,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:44:43,799 INFO L87 Difference]: Start difference. First operand 7268 states and 8472 transitions. Second operand 7 states. [2020-10-14 22:44:54,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:44:54,346 INFO L93 Difference]: Finished difference Result 16309 states and 20309 transitions. [2020-10-14 22:44:54,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:44:54,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 971 [2020-10-14 22:44:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:44:54,411 INFO L225 Difference]: With dead ends: 16309 [2020-10-14 22:44:54,411 INFO L226 Difference]: Without dead ends: 10459 [2020-10-14 22:44:54,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:44:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2020-10-14 22:44:54,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 10259. [2020-10-14 22:44:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10259 states. [2020-10-14 22:44:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10259 states to 10259 states and 11895 transitions. [2020-10-14 22:44:54,657 INFO L78 Accepts]: Start accepts. Automaton has 10259 states and 11895 transitions. Word has length 971 [2020-10-14 22:44:54,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:44:54,659 INFO L479 AbstractCegarLoop]: Abstraction has 10259 states and 11895 transitions. [2020-10-14 22:44:54,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:44:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 10259 states and 11895 transitions. [2020-10-14 22:44:54,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2020-10-14 22:44:54,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:44:54,676 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:44:54,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:44:54,676 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:44:54,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:44:54,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1887801450, now seen corresponding path program 1 times [2020-10-14 22:44:54,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:44:54,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677307554] [2020-10-14 22:44:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:44:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:55,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:55,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:58,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:58,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1024 [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3242 [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 22:44:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:58,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:44:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:58,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:58,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:58,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:44:58,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:58,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:44:58,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:58,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:44:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:44:58,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:58,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:44:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:58,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:58,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:44:58,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:44:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:58,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:44:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:44:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:58,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:44:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:58,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:58,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:44:58,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:58,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:44:58,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:58,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:44:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:44:58,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:58,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:44:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:58,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:58,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:44:58,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:58,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:44:58,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:58,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:58,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:44:58,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:58,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:44:58,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:58,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:44:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:58,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:58,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:58,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:44:58,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:44:58,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:58,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:44:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:58,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:44:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:58,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:58,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:58,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:44:58,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:58,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:44:58,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:58,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:44:58,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:58,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:44:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:58,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:59,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:59,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:44:59,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:59,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:44:59,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:59,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:44:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:44:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:44:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:44:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 369 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:44:59,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677307554] [2020-10-14 22:44:59,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:44:59,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:44:59,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915716087] [2020-10-14 22:44:59,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:44:59,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:44:59,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:44:59,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:44:59,657 INFO L87 Difference]: Start difference. First operand 10259 states and 11895 transitions. Second operand 7 states. [2020-10-14 22:45:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:45:08,826 INFO L93 Difference]: Finished difference Result 25069 states and 30070 transitions. [2020-10-14 22:45:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:45:08,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1004 [2020-10-14 22:45:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:45:08,881 INFO L225 Difference]: With dead ends: 25069 [2020-10-14 22:45:08,881 INFO L226 Difference]: Without dead ends: 16228 [2020-10-14 22:45:08,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:45:08,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16228 states. [2020-10-14 22:45:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16228 to 14716. [2020-10-14 22:45:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14716 states. [2020-10-14 22:45:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14716 states to 14716 states and 17115 transitions. [2020-10-14 22:45:09,161 INFO L78 Accepts]: Start accepts. Automaton has 14716 states and 17115 transitions. Word has length 1004 [2020-10-14 22:45:09,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:45:09,164 INFO L479 AbstractCegarLoop]: Abstraction has 14716 states and 17115 transitions. [2020-10-14 22:45:09,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:45:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 14716 states and 17115 transitions. [2020-10-14 22:45:09,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2020-10-14 22:45:09,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:45:09,188 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:45:09,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:45:09,189 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:45:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:45:09,189 INFO L82 PathProgramCache]: Analyzing trace with hash -738475187, now seen corresponding path program 1 times [2020-10-14 22:45:09,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:45:09,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079116644] [2020-10-14 22:45:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:45:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:09,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:09,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:09,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:14,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:14,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:14,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1185 [2020-10-14 22:45:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:45:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 22:45:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:14,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:45:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-14 22:45:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:45:14,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:14,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:45:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:14,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:14,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:45:14,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:14,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:45:14,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:14,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:14,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:14,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:45:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:14,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:14,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:14,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:45:14,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:14,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:45:14,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:14,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:14,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:14,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:14,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:14,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:14,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:45:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:14,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:14,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:14,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:45:14,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:14,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:45:14,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:14,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:14,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:14,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:14,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:45:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:14,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:14,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:14,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:45:14,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:45:14,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:14,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:14,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:15,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:45:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:15,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:15,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:15,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:45:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:15,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:15,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:45:15,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:45:15,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:15,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:15,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:15,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:45:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:15,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:15,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:15,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:45:15,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:15,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:45:15,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:15,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:45:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:45:15,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:15,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:45:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:15,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:15,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:15,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:45:15,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:15,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:45:15,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:15,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:15,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:45:15,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:45:15,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 22:45:15,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:15,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-14 22:45:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:15,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:15,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:15,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 538 proven. 80 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2020-10-14 22:45:16,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079116644] [2020-10-14 22:45:16,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:45:16,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:45:16,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820183630] [2020-10-14 22:45:16,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:45:16,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:45:16,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:45:16,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:45:16,408 INFO L87 Difference]: Start difference. First operand 14716 states and 17115 transitions. Second operand 8 states. [2020-10-14 22:45:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:45:32,730 INFO L93 Difference]: Finished difference Result 36032 states and 43719 transitions. [2020-10-14 22:45:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:45:32,731 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1161 [2020-10-14 22:45:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:45:32,799 INFO L225 Difference]: With dead ends: 36032 [2020-10-14 22:45:32,799 INFO L226 Difference]: Without dead ends: 22734 [2020-10-14 22:45:32,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:45:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22734 states. [2020-10-14 22:45:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22734 to 21897. [2020-10-14 22:45:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21897 states. [2020-10-14 22:45:33,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21897 states to 21897 states and 25356 transitions. [2020-10-14 22:45:33,200 INFO L78 Accepts]: Start accepts. Automaton has 21897 states and 25356 transitions. Word has length 1161 [2020-10-14 22:45:33,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:45:33,202 INFO L479 AbstractCegarLoop]: Abstraction has 21897 states and 25356 transitions. [2020-10-14 22:45:33,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:45:33,202 INFO L276 IsEmpty]: Start isEmpty. Operand 21897 states and 25356 transitions. [2020-10-14 22:45:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1214 [2020-10-14 22:45:33,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:45:33,229 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:45:33,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:45:33,230 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:45:33,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:45:33,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1242621228, now seen corresponding path program 1 times [2020-10-14 22:45:33,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:45:33,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918730918] [2020-10-14 22:45:33,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:45:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:33,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:33,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:33,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:35,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:38,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1235 [2020-10-14 22:45:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:45:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 22:45:38,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:38,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:45:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 996 [2020-10-14 22:45:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 192 [2020-10-14 22:45:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:38,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:45:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:38,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:38,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:38,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:45:38,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:38,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:45:38,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:38,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:38,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:38,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:38,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:38,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:38,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:45:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:38,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:38,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:38,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:38,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:38,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:45:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:38,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:38,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:45:38,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:38,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:45:38,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:38,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:38,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:38,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:38,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:38,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:38,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:45:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:38,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:39,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:39,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:45:39,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:39,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:45:39,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:39,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:39,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:39,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:45:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:39,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:39,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:45:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:45:39,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:39,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:39,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:45:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:39,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:39,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:39,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:45:39,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:45:39,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:39,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:39,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:39,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:45:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:39,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:39,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:39,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:45:39,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:39,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:45:39,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:39,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:45:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 22:45:39,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:39,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-14 22:45:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:39,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:39,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:39,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 22:45:39,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:45:39,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:39,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:45:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:45:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:45:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 685 proven. 2 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2020-10-14 22:45:40,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918730918] [2020-10-14 22:45:40,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:45:40,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:45:40,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703408159] [2020-10-14 22:45:40,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:45:40,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:45:40,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:45:40,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:45:40,379 INFO L87 Difference]: Start difference. First operand 21897 states and 25356 transitions. Second operand 7 states. [2020-10-14 22:45:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:45:53,903 INFO L93 Difference]: Finished difference Result 47516 states and 55456 transitions. [2020-10-14 22:45:53,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:45:53,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1213 [2020-10-14 22:45:53,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:45:53,974 INFO L225 Difference]: With dead ends: 47516 [2020-10-14 22:45:53,974 INFO L226 Difference]: Without dead ends: 27037 [2020-10-14 22:45:54,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:45:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27037 states. [2020-10-14 22:45:54,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27037 to 26952. [2020-10-14 22:45:54,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26952 states. [2020-10-14 22:45:54,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26952 states to 26952 states and 30904 transitions. [2020-10-14 22:45:54,600 INFO L78 Accepts]: Start accepts. Automaton has 26952 states and 30904 transitions. Word has length 1213 [2020-10-14 22:45:54,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:45:54,601 INFO L479 AbstractCegarLoop]: Abstraction has 26952 states and 30904 transitions. [2020-10-14 22:45:54,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:45:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 26952 states and 30904 transitions. [2020-10-14 22:45:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2020-10-14 22:45:54,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:45:54,626 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:45:54,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:45:54,627 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:45:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:45:54,628 INFO L82 PathProgramCache]: Analyzing trace with hash -861534230, now seen corresponding path program 1 times [2020-10-14 22:45:54,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:45:54,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896504776] [2020-10-14 22:45:54,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:45:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:54,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:55,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:55,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:55,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:59,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:59,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1282 [2020-10-14 22:45:59,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:45:59,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 22:45:59,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:59,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:59,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:45:59,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1043 [2020-10-14 22:45:59,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-14 22:45:59,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:46:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:46:00,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:46:00,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:00,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:46:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:46:00,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:46:00,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:00,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:00,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:46:00,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:46:00,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:46:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:46:00,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:46:00,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:46:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:46:00,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:46:00,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:00,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:00,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:46:00,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:46:00,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:46:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:00,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:46:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:46:00,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:46:00,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:00,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:00,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:46:00,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:00,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 22:46:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:00,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:00,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:00,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 22:46:00,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:00,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 22:46:00,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:00,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:46:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:46:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:01,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 727 proven. 44 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2020-10-14 22:46:01,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896504776] [2020-10-14 22:46:01,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:46:01,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:46:01,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683170602] [2020-10-14 22:46:01,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:46:01,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:46:01,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:46:01,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:46:01,741 INFO L87 Difference]: Start difference. First operand 26952 states and 30904 transitions. Second operand 6 states. [2020-10-14 22:46:11,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:46:11,412 INFO L93 Difference]: Finished difference Result 57531 states and 67259 transitions. [2020-10-14 22:46:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:46:11,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1258 [2020-10-14 22:46:11,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:46:11,494 INFO L225 Difference]: With dead ends: 57531 [2020-10-14 22:46:11,494 INFO L226 Difference]: Without dead ends: 31997 [2020-10-14 22:46:11,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:46:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31997 states. [2020-10-14 22:46:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31997 to 31236. [2020-10-14 22:46:11,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31236 states. [2020-10-14 22:46:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31236 states to 31236 states and 35940 transitions. [2020-10-14 22:46:12,016 INFO L78 Accepts]: Start accepts. Automaton has 31236 states and 35940 transitions. Word has length 1258 [2020-10-14 22:46:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:46:12,017 INFO L479 AbstractCegarLoop]: Abstraction has 31236 states and 35940 transitions. [2020-10-14 22:46:12,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:46:12,018 INFO L276 IsEmpty]: Start isEmpty. Operand 31236 states and 35940 transitions. [2020-10-14 22:46:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1266 [2020-10-14 22:46:12,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:46:12,042 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:46:12,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:46:12,043 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:46:12,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:46:12,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1735700918, now seen corresponding path program 1 times [2020-10-14 22:46:12,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:46:12,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977573197] [2020-10-14 22:46:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:46:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:12,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:12,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:12,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:15,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:17,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:17,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1291 [2020-10-14 22:46:17,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:46:17,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5104 [2020-10-14 22:46:17,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:17,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:17,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:17,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1043 [2020-10-14 22:46:17,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:46:17,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:17,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:46:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:17,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:17,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:17,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:46:17,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:17,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:46:17,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:17,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:17,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:17,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:46:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:17,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:17,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:17,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:46:17,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:17,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:46:17,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:17,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:17,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:17,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:17,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:17,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:17,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:17,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:46:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:17,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:17,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:17,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:46:17,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:46:17,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:17,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:17,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:46:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:17,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:17,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:17,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:46:17,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:17,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:46:17,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:17,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:17,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:17,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:17,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:17,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:18,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:18,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:18,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:18,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:18,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:18,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:46:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:18,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:18,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:18,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:46:18,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:18,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:46:18,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:18,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:18,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-14 22:46:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:18,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:18,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:18,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:46:18,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:18,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:46:18,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:18,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:18,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:18,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:18,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:46:18,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:18,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 22:46:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:18,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:18,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:18,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 22:46:18,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:18,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 22:46:18,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:18,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:46:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 22:46:18,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:18,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1137 [2020-10-14 22:46:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:18,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:18,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:18,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:46:18,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:18,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:46:18,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:18,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:46:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:18,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 665 proven. 87 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked. [2020-10-14 22:46:19,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977573197] [2020-10-14 22:46:19,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:46:19,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:46:19,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510258542] [2020-10-14 22:46:19,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:46:19,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:46:19,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:46:19,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:46:19,595 INFO L87 Difference]: Start difference. First operand 31236 states and 35940 transitions. Second operand 8 states. [2020-10-14 22:46:35,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:46:35,801 INFO L93 Difference]: Finished difference Result 66104 states and 76497 transitions. [2020-10-14 22:46:35,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:46:35,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1265 [2020-10-14 22:46:35,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:46:35,889 INFO L225 Difference]: With dead ends: 66104 [2020-10-14 22:46:35,890 INFO L226 Difference]: Without dead ends: 36286 [2020-10-14 22:46:35,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:46:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36286 states. [2020-10-14 22:46:36,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36286 to 36240. [2020-10-14 22:46:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36240 states. [2020-10-14 22:46:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36240 states to 36240 states and 41490 transitions. [2020-10-14 22:46:36,463 INFO L78 Accepts]: Start accepts. Automaton has 36240 states and 41490 transitions. Word has length 1265 [2020-10-14 22:46:36,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:46:36,464 INFO L479 AbstractCegarLoop]: Abstraction has 36240 states and 41490 transitions. [2020-10-14 22:46:36,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:46:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 36240 states and 41490 transitions. [2020-10-14 22:46:36,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1266 [2020-10-14 22:46:36,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:46:36,484 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:46:36,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:46:36,484 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:46:36,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:46:36,485 INFO L82 PathProgramCache]: Analyzing trace with hash -998453907, now seen corresponding path program 1 times [2020-10-14 22:46:36,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:46:36,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846040967] [2020-10-14 22:46:36,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:46:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:36,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:36,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:37,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:38,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:41,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1289 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1050 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 192 [2020-10-14 22:46:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:41,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:46:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:41,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:41,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:41,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:46:41,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:41,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:46:41,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:41,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:41,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:46:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:41,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:41,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:41,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:42,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking...