/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:32:03,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:32:03,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:32:03,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:32:03,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:32:03,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:32:03,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:32:03,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:32:03,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:32:03,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:32:03,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:32:03,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:32:03,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:32:03,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:32:03,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:32:03,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:32:03,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:32:03,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:32:03,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:32:03,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:32:03,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:32:03,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:32:03,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:32:03,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:32:03,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:32:03,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:32:03,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:32:03,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:32:03,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:32:03,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:32:03,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:32:03,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:32:03,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:32:03,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:32:03,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:32:03,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:32:03,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:32:03,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:32:03,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:32:03,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:32:03,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:32:03,747 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 [2020-09-25 12:32:03,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:32:03,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:32:03,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:32:03,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:32:03,805 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:32:03,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:32:03,806 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:32:03,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:32:03,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:32:03,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:32:03,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:32:03,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:32:03,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:32:03,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:32:03,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:32:03,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:32:03,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:32:03,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:32:03,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:32:03,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:32:03,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:32:03,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:32:03,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:32:03,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:32:03,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:32:03,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:32:03,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:32:03,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:32:03,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:32:03,811 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:32:04,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:32:04,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:32:04,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:32:04,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:32:04,342 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:32:04,343 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 12:32:04,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97f623a0c/c196ccb3301c49c9939d097a10753e73/FLAG5ec0f4c9f [2020-09-25 12:32:04,990 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:32:04,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 12:32:05,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97f623a0c/c196ccb3301c49c9939d097a10753e73/FLAG5ec0f4c9f [2020-09-25 12:32:05,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97f623a0c/c196ccb3301c49c9939d097a10753e73 [2020-09-25 12:32:05,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:32:05,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:32:05,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:32:05,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:32:05,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:32:05,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:05,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88af870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05, skipping insertion in model container [2020-09-25 12:32:05,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:05,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:32:05,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:32:05,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:32:05,728 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:32:05,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:32:05,832 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:32:05,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05 WrapperNode [2020-09-25 12:32:05,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:32:05,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:32:05,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:32:05,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:32:05,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:05,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:06,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:06,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:06,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:06,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:06,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (1/1) ... [2020-09-25 12:32:06,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:32:06,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:32:06,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:32:06,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:32:06,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (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 [2020-09-25 12:32:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:32:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:32:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 12:32:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:32:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:32:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 12:32:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 12:32:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 12:32:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:32:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:32:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:32:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:32:06,756 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:32:06,756 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:32:06,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:32:06 BoogieIcfgContainer [2020-09-25 12:32:06,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:32:06,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:32:06,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:32:06,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:32:06,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:32:05" (1/3) ... [2020-09-25 12:32:06,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efbabc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:32:06, skipping insertion in model container [2020-09-25 12:32:06,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:32:05" (2/3) ... [2020-09-25 12:32:06,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efbabc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:32:06, skipping insertion in model container [2020-09-25 12:32:06,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:32:06" (3/3) ... [2020-09-25 12:32:06,776 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 12:32:06,789 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:32:06,801 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 12:32:06,825 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 12:32:06,861 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:32:06,861 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:32:06,861 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:32:06,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:32:06,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:32:06,862 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:32:06,862 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:32:06,862 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:32:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-25 12:32:06,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 12:32:06,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:06,905 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] [2020-09-25 12:32:06,906 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:06,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:06,913 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-25 12:32:06,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:06,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069832352] [2020-09-25 12:32:06,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:07,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:07,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:07,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 12:32:07,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:07,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-25 12:32:07,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:07,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:32:07,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:32:07,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:07,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:07,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:07,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:07,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:07,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:07,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:07,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:07,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:07,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069832352] [2020-09-25 12:32:07,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:07,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:07,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498322789] [2020-09-25 12:32:07,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:07,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:07,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:07,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:07,544 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-25 12:32:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:08,471 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-25 12:32:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 12:32:08,474 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 12:32:08,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:08,501 INFO L225 Difference]: With dead ends: 290 [2020-09-25 12:32:08,501 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 12:32:08,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:32:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 12:32:08,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-25 12:32:08,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 12:32:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-25 12:32:08,613 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-25 12:32:08,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:08,613 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-25 12:32:08,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:08,614 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-25 12:32:08,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 12:32:08,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:08,615 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] [2020-09-25 12:32:08,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:32:08,616 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:08,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:08,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-25 12:32:08,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:08,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356590250] [2020-09-25 12:32:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:08,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:08,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 12:32:08,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 12:32:08,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:08,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:32:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 12:32:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:32:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:09,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:09,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:09,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:09,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:09,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:32:09,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:09,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:09,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:09,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:09,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:09,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356590250] [2020-09-25 12:32:09,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:09,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:09,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252533086] [2020-09-25 12:32:09,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:09,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:09,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:09,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:09,042 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-25 12:32:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:09,312 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-25 12:32:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:32:09,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 12:32:09,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:09,316 INFO L225 Difference]: With dead ends: 187 [2020-09-25 12:32:09,317 INFO L226 Difference]: Without dead ends: 185 [2020-09-25 12:32:09,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:32:09,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-25 12:32:09,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-25 12:32:09,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-25 12:32:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-25 12:32:09,355 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-25 12:32:09,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:09,355 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-25 12:32:09,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:09,356 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-25 12:32:09,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 12:32:09,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:09,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:09,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:32:09,359 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:09,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:09,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-25 12:32:09,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:09,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023831000] [2020-09-25 12:32:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:09,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:09,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:09,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 12:32:09,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:09,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 12:32:09,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:09,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:09,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:09,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:32:09,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:09,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:09,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:09,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:09,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:09,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:09,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:09,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:09,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:09,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:09,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:09,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:09,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023831000] [2020-09-25 12:32:09,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:09,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:09,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720670258] [2020-09-25 12:32:09,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:09,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:09,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:09,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:09,649 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-25 12:32:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:10,173 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-25 12:32:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:10,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 12:32:10,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:10,179 INFO L225 Difference]: With dead ends: 237 [2020-09-25 12:32:10,179 INFO L226 Difference]: Without dead ends: 235 [2020-09-25 12:32:10,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:32:10,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-25 12:32:10,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-25 12:32:10,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 12:32:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-25 12:32:10,197 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-25 12:32:10,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:10,197 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-25 12:32:10,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-25 12:32:10,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 12:32:10,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:10,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:10,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:32:10,200 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:10,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:10,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-25 12:32:10,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:10,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425469862] [2020-09-25 12:32:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:10,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:10,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:10,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:10,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 12:32:10,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-09-25 12:32:10,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:10,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 12:32:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:32:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:32:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:10,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:10,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:10,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:10,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:10,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:10,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:10,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:10,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425469862] [2020-09-25 12:32:10,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:10,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:10,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031860032] [2020-09-25 12:32:10,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:10,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:10,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:10,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:10,727 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-25 12:32:10,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:10,965 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-25 12:32:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:32:10,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-25 12:32:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:10,973 INFO L225 Difference]: With dead ends: 183 [2020-09-25 12:32:10,974 INFO L226 Difference]: Without dead ends: 181 [2020-09-25 12:32:10,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-25 12:32:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-25 12:32:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-25 12:32:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-25 12:32:10,995 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-25 12:32:10,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:10,996 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-25 12:32:10,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-25 12:32:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 12:32:10,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:10,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:10,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:32:11,000 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:11,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:11,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-25 12:32:11,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:11,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984929005] [2020-09-25 12:32:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:11,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:11,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:11,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:11,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:11,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:32:11,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:32:11,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-25 12:32:11,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:11,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:11,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 12:32:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:11,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:11,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:11,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:11,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:11,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:11,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:32:11,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:11,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:11,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:11,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:11,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984929005] [2020-09-25 12:32:11,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:11,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:11,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364636199] [2020-09-25 12:32:11,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:11,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:11,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:11,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:11,618 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states. [2020-09-25 12:32:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:12,314 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2020-09-25 12:32:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:32:12,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 12:32:12,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:12,318 INFO L225 Difference]: With dead ends: 305 [2020-09-25 12:32:12,318 INFO L226 Difference]: Without dead ends: 303 [2020-09-25 12:32:12,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:32:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-25 12:32:12,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192. [2020-09-25 12:32:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-25 12:32:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-25 12:32:12,330 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-25 12:32:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:12,331 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-25 12:32:12,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-25 12:32:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 12:32:12,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:12,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:12,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:32:12,334 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:12,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-25 12:32:12,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:12,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600147640] [2020-09-25 12:32:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:12,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:12,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:12,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:12,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 12:32:12,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:32:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-09-25 12:32:12,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:12,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:12,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:32:12,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:12,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:12,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:12,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:12,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:12,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:12,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:12,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:12,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:12,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:12,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600147640] [2020-09-25 12:32:12,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:12,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:12,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142334698] [2020-09-25 12:32:12,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:12,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:12,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:12,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:12,905 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-25 12:32:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:13,998 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-25 12:32:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:32:14,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 12:32:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:14,007 INFO L225 Difference]: With dead ends: 471 [2020-09-25 12:32:14,008 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 12:32:14,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:32:14,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 12:32:14,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-25 12:32:14,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 12:32:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 12:32:14,027 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 12:32:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:14,028 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 12:32:14,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 12:32:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 12:32:14,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:14,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:14,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:32:14,037 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-25 12:32:14,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:14,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235450099] [2020-09-25 12:32:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:14,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:14,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:14,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:14,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:14,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:17,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:17,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 12:32:17,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:32:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3819 [2020-09-25 12:32:17,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:17,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 12:32:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 12:32:17,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:17,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:17,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:17,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:17,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:17,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:17,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:17,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:17,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:17,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:17,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235450099] [2020-09-25 12:32:17,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:17,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:17,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266070660] [2020-09-25 12:32:17,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:17,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:17,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:17,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:17,983 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-25 12:32:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:18,322 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-25 12:32:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:32:18,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 12:32:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:18,325 INFO L225 Difference]: With dead ends: 197 [2020-09-25 12:32:18,325 INFO L226 Difference]: Without dead ends: 195 [2020-09-25 12:32:18,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-25 12:32:18,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-25 12:32:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 12:32:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-25 12:32:18,335 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-25 12:32:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:18,336 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-25 12:32:18,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-25 12:32:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 12:32:18,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:18,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:18,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:32:18,337 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:18,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:18,338 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-25 12:32:18,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:18,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617385254] [2020-09-25 12:32:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:18,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:18,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:18,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:19,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:19,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:32:19,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:32:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1619 [2020-09-25 12:32:19,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:19,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 12:32:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 12:32:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:20,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:20,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:20,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:20,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:32:20,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:20,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:20,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:20,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:20,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617385254] [2020-09-25 12:32:20,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:20,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:20,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796353229] [2020-09-25 12:32:20,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:20,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:20,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:20,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:20,074 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 7 states. [2020-09-25 12:32:20,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:20,650 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-25 12:32:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:32:20,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 12:32:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:20,655 INFO L225 Difference]: With dead ends: 297 [2020-09-25 12:32:20,655 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 12:32:20,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:32:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 12:32:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-25 12:32:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 12:32:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-25 12:32:20,666 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-25 12:32:20,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:20,667 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-25 12:32:20,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-25 12:32:20,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 12:32:20,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:20,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:20,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:32:20,668 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:20,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:20,669 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-25 12:32:20,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:20,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058123256] [2020-09-25 12:32:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:20,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:20,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:20,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:20,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:22,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:22,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 12:32:22,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:32:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1858 [2020-09-25 12:32:22,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:22,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:32:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 12:32:22,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:22,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:22,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:22,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:22,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:22,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:22,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:22,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:22,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058123256] [2020-09-25 12:32:22,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:22,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:22,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002802096] [2020-09-25 12:32:22,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:22,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:22,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:22,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:22,681 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 8 states. [2020-09-25 12:32:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:23,134 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2020-09-25 12:32:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:23,134 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-25 12:32:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:23,136 INFO L225 Difference]: With dead ends: 204 [2020-09-25 12:32:23,136 INFO L226 Difference]: Without dead ends: 202 [2020-09-25 12:32:23,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:32:23,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-25 12:32:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191. [2020-09-25 12:32:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 12:32:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-25 12:32:23,144 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-25 12:32:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:23,144 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-25 12:32:23,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-25 12:32:23,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 12:32:23,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:23,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:23,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:32:23,146 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:23,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:23,147 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-25 12:32:23,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:23,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336774168] [2020-09-25 12:32:23,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:23,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:23,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:23,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:23,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:23,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:23,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:24,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:28,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:28,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 12:32:28,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:32:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 12:32:28,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:28,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 12:32:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 12:32:28,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:28,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:28,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:28,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:28,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:28,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:28,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:28,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:28,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336774168] [2020-09-25 12:32:28,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:28,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:28,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840540052] [2020-09-25 12:32:28,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:28,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:28,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:28,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:28,252 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 7 states. [2020-09-25 12:32:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:28,825 INFO L93 Difference]: Finished difference Result 288 states and 294 transitions. [2020-09-25 12:32:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:32:28,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-09-25 12:32:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:28,829 INFO L225 Difference]: With dead ends: 288 [2020-09-25 12:32:28,829 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 12:32:28,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:28,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 12:32:28,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 212. [2020-09-25 12:32:28,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 12:32:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 217 transitions. [2020-09-25 12:32:28,839 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 217 transitions. Word has length 80 [2020-09-25 12:32:28,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:28,839 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 217 transitions. [2020-09-25 12:32:28,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:28,839 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 217 transitions. [2020-09-25 12:32:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:32:28,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:28,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:28,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 12:32:28,841 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:28,841 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-25 12:32:28,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:28,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350964727] [2020-09-25 12:32:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:28,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:28,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:29,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:33,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:33,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 12:32:33,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:32:33,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 12:32:33,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:33,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:32:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 12:32:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 12:32:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:33,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:33,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:33,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:33,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:33,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:33,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:32:33,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:33,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:33,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:33,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:33,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:33,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350964727] [2020-09-25 12:32:33,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:33,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:32:33,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662948499] [2020-09-25 12:32:33,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:32:33,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:33,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:32:33,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:32:33,932 INFO L87 Difference]: Start difference. First operand 212 states and 217 transitions. Second operand 7 states. [2020-09-25 12:32:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:34,233 INFO L93 Difference]: Finished difference Result 212 states and 217 transitions. [2020-09-25 12:32:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:32:34,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-25 12:32:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:34,235 INFO L225 Difference]: With dead ends: 212 [2020-09-25 12:32:34,235 INFO L226 Difference]: Without dead ends: 210 [2020-09-25 12:32:34,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:32:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-25 12:32:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 189. [2020-09-25 12:32:34,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 12:32:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2020-09-25 12:32:34,244 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 85 [2020-09-25 12:32:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:34,244 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2020-09-25 12:32:34,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:32:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2020-09-25 12:32:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 12:32:34,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:34,246 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:32:34,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 12:32:34,246 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:34,247 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-25 12:32:34,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:34,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093987709] [2020-09-25 12:32:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:34,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:34,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:36,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:36,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 12:32:36,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:32:36,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2095 [2020-09-25 12:32:36,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:36,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:32:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 12:32:36,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:36,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:36,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:36,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:36,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:36,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:36,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:36,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 12:32:36,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093987709] [2020-09-25 12:32:36,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:32:36,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 12:32:36,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563700179] [2020-09-25 12:32:36,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:36,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:36,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:36,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:36,454 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 8 states. [2020-09-25 12:32:37,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:37,252 INFO L93 Difference]: Finished difference Result 301 states and 307 transitions. [2020-09-25 12:32:37,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:32:37,253 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 12:32:37,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:37,254 INFO L225 Difference]: With dead ends: 301 [2020-09-25 12:32:37,255 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 12:32:37,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:32:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 12:32:37,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 182. [2020-09-25 12:32:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 12:32:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2020-09-25 12:32:37,264 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86 [2020-09-25 12:32:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:37,265 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2020-09-25 12:32:37,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2020-09-25 12:32:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 12:32:37,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:37,266 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 12:32:37,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 12:32:37,266 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:37,267 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-25 12:32:37,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:37,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710877406] [2020-09-25 12:32:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:37,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:37,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:39,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:39,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 12:32:39,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:32:39,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1999 [2020-09-25 12:32:39,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:39,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:32:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 12:32:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:39,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:39,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:39,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:39,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:39,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:39,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:39,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:39,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:32:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 12:32:39,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710877406] [2020-09-25 12:32:39,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:32:39,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 12:32:39,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582754606] [2020-09-25 12:32:39,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:39,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:39,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:39,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:39,404 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 8 states. [2020-09-25 12:32:39,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:39,856 INFO L93 Difference]: Finished difference Result 193 states and 198 transitions. [2020-09-25 12:32:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:32:39,857 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 12:32:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:39,858 INFO L225 Difference]: With dead ends: 193 [2020-09-25 12:32:39,859 INFO L226 Difference]: Without dead ends: 191 [2020-09-25 12:32:39,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:32:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-25 12:32:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 169. [2020-09-25 12:32:39,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 12:32:39,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions. [2020-09-25 12:32:39,866 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86 [2020-09-25 12:32:39,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:39,866 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 172 transitions. [2020-09-25 12:32:39,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:39,867 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions. [2020-09-25 12:32:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 12:32:39,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:39,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:39,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 12:32:39,868 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:39,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times [2020-09-25 12:32:39,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:39,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017549929] [2020-09-25 12:32:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:39,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:39,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:40,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:40,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:40,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:44,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:44,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:32:44,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:32:44,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4925 [2020-09-25 12:32:44,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:44,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:32:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:32:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 12:32:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:44,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:44,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:44,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:44,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:44,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:32:44,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:44,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:44,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:44,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017549929] [2020-09-25 12:32:44,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:44,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:44,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610390869] [2020-09-25 12:32:44,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:44,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:44,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:44,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:44,913 INFO L87 Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 8 states. [2020-09-25 12:32:45,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:45,363 INFO L93 Difference]: Finished difference Result 180 states and 183 transitions. [2020-09-25 12:32:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:32:45,363 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-09-25 12:32:45,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:45,364 INFO L225 Difference]: With dead ends: 180 [2020-09-25 12:32:45,365 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 12:32:45,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:32:45,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 12:32:45,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 167. [2020-09-25 12:32:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 12:32:45,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions. [2020-09-25 12:32:45,372 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94 [2020-09-25 12:32:45,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:45,372 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 170 transitions. [2020-09-25 12:32:45,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:45,372 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions. [2020-09-25 12:32:45,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 12:32:45,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:45,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:45,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 12:32:45,374 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:45,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:45,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times [2020-09-25 12:32:45,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:45,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907340639] [2020-09-25 12:32:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:45,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:45,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:45,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:45,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:45,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:45,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:46,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:50,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:50,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 12:32:50,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:32:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:32:50,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:50,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:32:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 12:32:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 12:32:50,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:32:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:50,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:50,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:32:50,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:32:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:32:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:32:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:32:50,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:32:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:32:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:32:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:32:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:32:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:32:50,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907340639] [2020-09-25 12:32:50,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:32:50,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:32:50,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957710881] [2020-09-25 12:32:50,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:32:50,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:32:50,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:32:50,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:32:50,473 INFO L87 Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 8 states. [2020-09-25 12:32:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:32:50,980 INFO L93 Difference]: Finished difference Result 207 states and 212 transitions. [2020-09-25 12:32:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:32:50,981 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-25 12:32:50,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:32:50,982 INFO L225 Difference]: With dead ends: 207 [2020-09-25 12:32:50,982 INFO L226 Difference]: Without dead ends: 205 [2020-09-25 12:32:50,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:32:50,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-25 12:32:50,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2020-09-25 12:32:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 12:32:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 168 transitions. [2020-09-25 12:32:50,992 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 168 transitions. Word has length 99 [2020-09-25 12:32:50,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:32:50,992 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 168 transitions. [2020-09-25 12:32:50,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:32:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 168 transitions. [2020-09-25 12:32:50,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 12:32:50,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:32:50,994 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:32:50,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 12:32:50,995 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:32:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:32:50,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1977584034, now seen corresponding path program 1 times [2020-09-25 12:32:50,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:32:50,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797632978] [2020-09-25 12:32:50,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:32:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:32:51,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:51,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:51,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:51,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:51,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:51,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:51,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:32:51,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking...