/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:14:12,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:14:12,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:14:12,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:14:12,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:14:12,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:14:12,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:14:12,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:14:12,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:14:12,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:14:12,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:14:12,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:14:12,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:14:12,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:14:12,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:14:12,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:14:12,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:14:12,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:14:12,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:14:12,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:14:12,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:14:12,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:14:12,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:14:12,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:14:12,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:14:12,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:14:12,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:14:12,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:14:12,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:14:12,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:14:12,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:14:12,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:14:12,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:14:12,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:14:12,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:14:12,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:14:12,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:14:12,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:14:12,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:14:12,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:14:12,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:14:12,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 11:14:12,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:14:12,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:14:12,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:14:12,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:14:12,636 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:14:12,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:14:12,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:14:12,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:14:12,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:14:12,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:14:12,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:14:12,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:14:12,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:14:12,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:14:12,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:14:12,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:14:12,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:14:12,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:14:12,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:14:12,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:14:12,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:14:12,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:14:12,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:14:12,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:14:12,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:14:12,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:14:12,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:14:12,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:14:12,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:14:12,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:14:12,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:14:12,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:14:12,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:14:12,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:14:12,959 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:14:12,960 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label39.c [2020-10-12 11:14:13,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/837784a56/e6dcc0dd561f4cb4a78975d4ff6c5834/FLAG04791b803 [2020-10-12 11:14:13,613 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:14:13,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label39.c [2020-10-12 11:14:13,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/837784a56/e6dcc0dd561f4cb4a78975d4ff6c5834/FLAG04791b803 [2020-10-12 11:14:13,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/837784a56/e6dcc0dd561f4cb4a78975d4ff6c5834 [2020-10-12 11:14:13,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:14:13,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:14:13,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:14:13,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:14:13,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:14:13,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:14:13" (1/1) ... [2020-10-12 11:14:13,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5d0024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:13, skipping insertion in model container [2020-10-12 11:14:13,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:14:13" (1/1) ... [2020-10-12 11:14:13,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:14:13,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:14:14,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:14:14,478 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:14:14,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:14:14,652 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:14:14,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14 WrapperNode [2020-10-12 11:14:14,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:14:14,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:14:14,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:14:14,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:14:14,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... [2020-10-12 11:14:14,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... [2020-10-12 11:14:14,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... [2020-10-12 11:14:14,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... [2020-10-12 11:14:14,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... [2020-10-12 11:14:14,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... [2020-10-12 11:14:14,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... [2020-10-12 11:14:14,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:14:14,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:14:14,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:14:14,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:14:14,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:14:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:14:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:14:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:14:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:14:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:14:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:14:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:14:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:14:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:14:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:14:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:14:16,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:14:16,039 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:14:16,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:16 BoogieIcfgContainer [2020-10-12 11:14:16,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:14:16,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:14:16,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:14:16,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:14:16,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:14:13" (1/3) ... [2020-10-12 11:14:16,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533e0e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:16, skipping insertion in model container [2020-10-12 11:14:16,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:14" (2/3) ... [2020-10-12 11:14:16,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533e0e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:16, skipping insertion in model container [2020-10-12 11:14:16,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:16" (3/3) ... [2020-10-12 11:14:16,055 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label39.c [2020-10-12 11:14:16,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:14:16,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:14:16,089 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:14:16,117 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:14:16,117 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:14:16,117 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:14:16,117 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:14:16,118 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:14:16,118 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:14:16,118 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:14:16,118 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:14:16,145 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-12 11:14:16,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 11:14:16,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:16,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:16,161 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:16,170 INFO L82 PathProgramCache]: Analyzing trace with hash 640678305, now seen corresponding path program 1 times [2020-10-12 11:14:16,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:16,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600577959] [2020-10-12 11:14:16,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:16,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:16,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:18,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:18,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 11:14:18,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:18,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1584 [2020-10-12 11:14:18,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 11:14:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:14:18,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:14:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:14:18,602 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-10-12 11:14:18,773 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2020-10-12 11:14:18,994 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 45 [2020-10-12 11:14:19,235 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-10-12 11:14:19,458 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 36 [2020-10-12 11:14:19,632 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2020-10-12 11:14:19,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:19,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:19,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:19,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:19,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:19,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:14:19,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:14:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:19,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600577959] [2020-10-12 11:14:19,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:14:19,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 11:14:19,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987087279] [2020-10-12 11:14:19,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 11:14:19,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:19,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 11:14:19,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:14:19,895 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2020-10-12 11:14:20,291 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-10-12 11:14:20,540 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-12 11:14:20,847 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2020-10-12 11:14:21,139 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 95 [2020-10-12 11:14:21,834 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2020-10-12 11:14:22,399 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2020-10-12 11:14:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:23,853 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-12 11:14:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:14:23,857 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 117 [2020-10-12 11:14:23,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:23,870 INFO L225 Difference]: With dead ends: 536 [2020-10-12 11:14:23,870 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 11:14:23,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:14:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 11:14:23,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-12 11:14:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-12 11:14:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-12 11:14:23,943 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 117 [2020-10-12 11:14:23,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:23,944 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-12 11:14:23,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 11:14:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-12 11:14:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-12 11:14:23,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:23,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:23,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:14:23,949 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:23,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:23,949 INFO L82 PathProgramCache]: Analyzing trace with hash -463476400, now seen corresponding path program 1 times [2020-10-12 11:14:23,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:23,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901425454] [2020-10-12 11:14:23,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:24,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:24,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:25,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:25,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 11:14:25,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:25,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1261 [2020-10-12 11:14:25,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 11:14:25,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:14:25,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:25,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:25,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:25,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:25,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:25,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:25,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:14:25,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:25,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:25,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:25,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:25,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:14:25,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:25,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:14:25,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:14:25,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:25,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901425454] [2020-10-12 11:14:25,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:25,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:25,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224141587] [2020-10-12 11:14:25,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:25,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:25,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:25,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:25,792 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-12 11:14:27,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:27,637 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-12 11:14:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 11:14:27,638 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 126 [2020-10-12 11:14:27,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:27,641 INFO L225 Difference]: With dead ends: 549 [2020-10-12 11:14:27,641 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 11:14:27,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:14:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 11:14:27,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-12 11:14:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-12 11:14:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-12 11:14:27,668 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 126 [2020-10-12 11:14:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:27,669 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-12 11:14:27,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:27,669 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-12 11:14:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 11:14:27,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:27,674 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:27,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:14:27,674 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:27,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash 576286168, now seen corresponding path program 1 times [2020-10-12 11:14:27,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:27,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603540963] [2020-10-12 11:14:27,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:27,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:27,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:28,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:29,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:29,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-12 11:14:29,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:29,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1289 [2020-10-12 11:14:29,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 11:14:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 11:14:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:29,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:29,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:29,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:29,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:29,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:29,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:14:29,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:29,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:14:29,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:29,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:14:29,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 11:14:29,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:29,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603540963] [2020-10-12 11:14:29,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:29,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:29,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447496739] [2020-10-12 11:14:29,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:29,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:29,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:29,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:29,612 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-12 11:14:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:31,333 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-12 11:14:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:14:31,334 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2020-10-12 11:14:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:31,338 INFO L225 Difference]: With dead ends: 554 [2020-10-12 11:14:31,338 INFO L226 Difference]: Without dead ends: 327 [2020-10-12 11:14:31,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-12 11:14:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-12 11:14:31,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-12 11:14:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-12 11:14:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-12 11:14:31,365 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 130 [2020-10-12 11:14:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:31,365 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-12 11:14:31,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-12 11:14:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-12 11:14:31,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:31,369 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:31,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:14:31,370 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:31,370 INFO L82 PathProgramCache]: Analyzing trace with hash 262753920, now seen corresponding path program 1 times [2020-10-12 11:14:31,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:31,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894710447] [2020-10-12 11:14:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:31,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:31,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:31,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:31,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 11:14:31,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-10-12 11:14:31,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:14:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 11:14:31,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 11:14:31,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:32,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:32,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:32,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:32,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:32,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:14:32,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:32,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:32,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:32,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:32,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:32,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:14:32,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:14:32,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:14:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:32,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:32,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:32,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 11:14:32,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:32,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:14:32,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:32,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:32,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:32,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 11:14:32,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:14:32,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894710447] [2020-10-12 11:14:32,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:32,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:14:32,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640160998] [2020-10-12 11:14:32,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:14:32,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:32,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:14:32,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:14:32,341 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-12 11:14:33,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:33,324 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-12 11:14:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:14:33,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-10-12 11:14:33,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:33,332 INFO L225 Difference]: With dead ends: 724 [2020-10-12 11:14:33,332 INFO L226 Difference]: Without dead ends: 323 [2020-10-12 11:14:33,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:14:33,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-12 11:14:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-12 11:14:33,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-12 11:14:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-12 11:14:33,391 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 152 [2020-10-12 11:14:33,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:33,391 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-12 11:14:33,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:14:33,392 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-12 11:14:33,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 11:14:33,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:33,400 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:33,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:14:33,401 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:33,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:33,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1502990113, now seen corresponding path program 1 times [2020-10-12 11:14:33,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:33,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745469206] [2020-10-12 11:14:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:33,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:33,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:33,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:35,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:35,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-12 11:14:35,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:35,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1574 [2020-10-12 11:14:35,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-12 11:14:35,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 11:14:35,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:35,803 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-10-12 11:14:36,070 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 47 [2020-10-12 11:14:36,319 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 43 [2020-10-12 11:14:36,488 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2020-10-12 11:14:36,650 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 34 [2020-10-12 11:14:36,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:36,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:36,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:36,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:14:36,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:36,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:36,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:36,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:36,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:36,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:14:36,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:36,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 11:14:36,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 11:14:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:36,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745469206] [2020-10-12 11:14:36,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:36,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:36,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033497599] [2020-10-12 11:14:36,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:36,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:36,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:36,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:36,982 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-12 11:14:37,343 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 11:14:37,594 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-10-12 11:14:37,937 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-12 11:14:38,518 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-12 11:14:39,079 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 11:14:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:39,381 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-12 11:14:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:14:39,383 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 151 [2020-10-12 11:14:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:39,386 INFO L225 Difference]: With dead ends: 723 [2020-10-12 11:14:39,387 INFO L226 Difference]: Without dead ends: 401 [2020-10-12 11:14:39,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-12 11:14:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-12 11:14:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-12 11:14:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-12 11:14:39,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-12 11:14:39,404 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 151 [2020-10-12 11:14:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:39,405 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-12 11:14:39,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-12 11:14:39,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 11:14:39,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:39,408 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:39,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:14:39,408 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:39,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:39,409 INFO L82 PathProgramCache]: Analyzing trace with hash -473946906, now seen corresponding path program 1 times [2020-10-12 11:14:39,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:39,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780676785] [2020-10-12 11:14:39,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:39,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:39,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:39,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:39,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 11:14:39,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:39,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-12 11:14:39,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:14:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-12 11:14:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 11:14:39,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:40,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:40,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:40,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:40,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:40,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:14:40,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:40,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:40,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:40,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:40,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:14:40,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:40,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:14:40,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:40,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:40,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:40,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:14:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:40,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:40,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:14:40,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:40,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:14:40,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:40,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:14:40,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 11:14:40,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780676785] [2020-10-12 11:14:40,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:40,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:14:40,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106435844] [2020-10-12 11:14:40,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:14:40,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:40,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:14:40,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:14:40,321 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-12 11:14:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:41,700 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-12 11:14:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:14:41,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-10-12 11:14:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:41,706 INFO L225 Difference]: With dead ends: 874 [2020-10-12 11:14:41,706 INFO L226 Difference]: Without dead ends: 399 [2020-10-12 11:14:41,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:14:41,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-12 11:14:41,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-12 11:14:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-12 11:14:41,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-12 11:14:41,743 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 159 [2020-10-12 11:14:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:41,744 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-12 11:14:41,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:14:41,744 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-12 11:14:41,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-12 11:14:41,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:41,752 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:41,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:14:41,752 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:41,753 INFO L82 PathProgramCache]: Analyzing trace with hash -77075061, now seen corresponding path program 1 times [2020-10-12 11:14:41,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:41,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539038778] [2020-10-12 11:14:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:41,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:41,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:42,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:43,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:43,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 11:14:43,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:43,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1654 [2020-10-12 11:14:43,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:43,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:43,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-12 11:14:43,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 11:14:43,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:43,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:43,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:43,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:43,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:43,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:43,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:14:43,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:43,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:43,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:43,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:43,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:43,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:14:43,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:43,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 11:14:43,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:14:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:43,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539038778] [2020-10-12 11:14:43,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:43,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:43,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099982073] [2020-10-12 11:14:43,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:43,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:43,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:43,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:43,978 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-12 11:14:46,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:46,193 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-12 11:14:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 11:14:46,196 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2020-10-12 11:14:46,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:46,199 INFO L225 Difference]: With dead ends: 886 [2020-10-12 11:14:46,199 INFO L226 Difference]: Without dead ends: 498 [2020-10-12 11:14:46,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:14:46,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-12 11:14:46,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-12 11:14:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-12 11:14:46,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-12 11:14:46,219 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 168 [2020-10-12 11:14:46,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:46,220 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-12 11:14:46,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:46,220 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-12 11:14:46,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-12 11:14:46,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:46,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:46,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:14:46,223 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:46,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:46,224 INFO L82 PathProgramCache]: Analyzing trace with hash 72470135, now seen corresponding path program 1 times [2020-10-12 11:14:46,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:46,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490793876] [2020-10-12 11:14:46,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:46,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:46,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:47,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-12 11:14:47,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:14:47,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1204 [2020-10-12 11:14:47,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:47,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:47,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 11:14:47,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:14:47,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:47,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:47,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:47,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:47,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:14:47,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:47,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:47,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:47,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:47,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:47,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:47,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:47,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 11:14:47,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:47,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 11:14:47,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:47,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:14:47,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:14:47,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490793876] [2020-10-12 11:14:47,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:47,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:47,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210813620] [2020-10-12 11:14:47,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:47,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:47,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:47,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:47,935 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-12 11:14:49,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:49,674 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-12 11:14:49,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:14:49,675 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 174 [2020-10-12 11:14:49,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:49,678 INFO L225 Difference]: With dead ends: 1040 [2020-10-12 11:14:49,678 INFO L226 Difference]: Without dead ends: 569 [2020-10-12 11:14:49,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:14:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-12 11:14:49,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-12 11:14:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-12 11:14:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-12 11:14:49,699 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 174 [2020-10-12 11:14:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:49,699 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-12 11:14:49,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-12 11:14:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-12 11:14:49,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:49,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:49,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:14:49,703 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:49,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1788477037, now seen corresponding path program 1 times [2020-10-12 11:14:49,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:49,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027902687] [2020-10-12 11:14:49,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:49,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:49,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:50,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:50,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-12 11:14:50,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:50,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-12 11:14:50,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:50,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:14:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 11:14:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 11:14:50,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:50,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:50,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:50,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:50,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:50,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:50,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:14:50,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:50,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:50,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:50,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:50,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:50,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:50,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:50,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:50,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:14:50,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:50,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:14:50,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:50,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:50,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:50,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:50,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:50,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 11:14:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:50,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:50,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:50,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 11:14:50,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:50,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 11:14:50,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:50,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:50,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 11:14:50,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:14:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:14:50,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027902687] [2020-10-12 11:14:50,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:50,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:14:50,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734895227] [2020-10-12 11:14:50,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:14:50,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:50,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:14:50,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:14:50,842 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-12 11:14:51,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:51,878 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-12 11:14:51,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:14:51,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2020-10-12 11:14:51,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:51,883 INFO L225 Difference]: With dead ends: 1203 [2020-10-12 11:14:51,883 INFO L226 Difference]: Without dead ends: 464 [2020-10-12 11:14:51,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:14:51,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-12 11:14:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-12 11:14:51,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-12 11:14:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-12 11:14:51,900 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 199 [2020-10-12 11:14:51,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:51,900 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-12 11:14:51,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:14:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-12 11:14:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-12 11:14:51,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:51,904 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:51,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:14:51,904 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:51,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1874714939, now seen corresponding path program 1 times [2020-10-12 11:14:51,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:51,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895590686] [2020-10-12 11:14:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:51,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:52,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:52,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:54,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:54,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-12 11:14:54,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:14:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2449 [2020-10-12 11:14:54,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 11:14:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-12 11:14:54,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 11:14:54,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:54,754 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-10-12 11:14:55,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:55,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:55,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:55,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:55,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:14:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:55,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:55,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:55,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:55,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:55,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 11:14:55,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:55,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:14:55,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:55,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:55,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 11:14:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:55,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:55,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:55,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 11:14:55,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:14:55,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:55,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:55,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:55,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 11:14:55,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-12 11:14:55,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895590686] [2020-10-12 11:14:55,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:55,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 11:14:55,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385829220] [2020-10-12 11:14:55,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:14:55,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:55,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:14:55,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:14:55,447 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-12 11:14:55,961 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-12 11:14:56,246 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:14:56,492 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-12 11:14:56,871 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-12 11:14:57,082 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-12 11:14:57,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:14:57,828 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-12 11:14:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:14:57,829 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 210 [2020-10-12 11:14:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:14:57,833 INFO L225 Difference]: With dead ends: 1000 [2020-10-12 11:14:57,833 INFO L226 Difference]: Without dead ends: 549 [2020-10-12 11:14:57,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:14:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-12 11:14:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-12 11:14:57,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-12 11:14:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-12 11:14:57,851 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 210 [2020-10-12 11:14:57,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:14:57,852 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-12 11:14:57,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:14:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-12 11:14:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-12 11:14:57,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:14:57,855 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:14:57,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:14:57,856 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:14:57,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:14:57,856 INFO L82 PathProgramCache]: Analyzing trace with hash -330891383, now seen corresponding path program 1 times [2020-10-12 11:14:57,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:14:57,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088158662] [2020-10-12 11:14:57,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:14:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:57,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:58,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:58,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:58,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-12 11:14:58,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:14:58,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-12 11:14:58,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:14:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-12 11:14:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:14:58,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:14:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:58,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:58,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:58,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:14:58,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:58,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:14:58,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:58,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:58,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:58,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:58,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:58,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:14:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:58,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:58,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:58,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:14:58,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:58,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:14:58,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:14:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:14:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 11:14:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:14:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:14:58,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:14:58,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 11:14:58,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:14:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 11:14:58,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:14:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:14:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:14:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 11:14:58,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:14:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 11:14:58,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088158662] [2020-10-12 11:14:58,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:14:58,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:14:58,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271734385] [2020-10-12 11:14:58,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:14:58,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:14:58,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:14:58,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:14:58,729 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 6 states. [2020-10-12 11:15:00,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:00,097 INFO L93 Difference]: Finished difference Result 1245 states and 1526 transitions. [2020-10-12 11:15:00,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:15:00,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 223 [2020-10-12 11:15:00,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:00,101 INFO L225 Difference]: With dead ends: 1245 [2020-10-12 11:15:00,101 INFO L226 Difference]: Without dead ends: 465 [2020-10-12 11:15:00,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:15:00,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-12 11:15:00,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-12 11:15:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-12 11:15:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 530 transitions. [2020-10-12 11:15:00,120 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 530 transitions. Word has length 223 [2020-10-12 11:15:00,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:00,120 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 530 transitions. [2020-10-12 11:15:00,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:15:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 530 transitions. [2020-10-12 11:15:00,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-12 11:15:00,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:00,124 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:00,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:15:00,125 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:00,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:00,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1724964950, now seen corresponding path program 1 times [2020-10-12 11:15:00,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:00,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690344259] [2020-10-12 11:15:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:00,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:00,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:00,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:00,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:01,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:01,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:02,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:03,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 11:15:05,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 11:15:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 11:15:05,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 11:15:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:15:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-12 11:15:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:06,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:06,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:06,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:15:06,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:15:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:06,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:06,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:06,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 11:15:06,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 11:15:06,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 11:15:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:06,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 11:15:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:06,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:06,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 11:15:06,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:06,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 11:15:06,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:06,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 11:15:06,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:06,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 11:15:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:06,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:06,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:15:06,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 11:15:06,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 11:15:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:15:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 44 proven. 106 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-12 11:15:06,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690344259] [2020-10-12 11:15:06,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:06,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 11:15:06,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106900252] [2020-10-12 11:15:06,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 11:15:06,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:06,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 11:15:06,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:15:06,687 INFO L87 Difference]: Start difference. First operand 458 states and 530 transitions. Second operand 22 states. [2020-10-12 11:15:07,338 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2020-10-12 11:15:07,503 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-12 11:15:07,705 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-12 11:15:07,951 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-12 11:15:08,286 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-10-12 11:15:08,496 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-12 11:15:08,733 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-12 11:15:09,040 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2020-10-12 11:15:09,691 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-10-12 11:15:09,868 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-10-12 11:15:10,059 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-10-12 11:15:10,270 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-10-12 11:15:10,512 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-12 11:15:10,791 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-10-12 11:15:11,094 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-12 11:15:11,524 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-12 11:15:11,710 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2020-10-12 11:15:11,923 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2020-10-12 11:15:12,328 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2020-10-12 11:15:12,642 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-10-12 11:15:12,848 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-10-12 11:15:13,104 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-10-12 11:15:13,628 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2020-10-12 11:15:13,864 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-10-12 11:15:14,198 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-10-12 11:15:14,376 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-12 11:15:14,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:14,980 INFO L93 Difference]: Finished difference Result 1665 states and 2093 transitions. [2020-10-12 11:15:14,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-12 11:15:14,981 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 230 [2020-10-12 11:15:14,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:14,988 INFO L225 Difference]: With dead ends: 1665 [2020-10-12 11:15:14,988 INFO L226 Difference]: Without dead ends: 1171 [2020-10-12 11:15:14,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1042, Invalid=2618, Unknown=0, NotChecked=0, Total=3660 [2020-10-12 11:15:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2020-10-12 11:15:15,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1113. [2020-10-12 11:15:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2020-10-12 11:15:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1282 transitions. [2020-10-12 11:15:15,041 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1282 transitions. Word has length 230 [2020-10-12 11:15:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:15,042 INFO L479 AbstractCegarLoop]: Abstraction has 1113 states and 1282 transitions. [2020-10-12 11:15:15,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 11:15:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1282 transitions. [2020-10-12 11:15:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-12 11:15:15,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:15,046 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:15,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:15:15,046 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:15,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:15,047 INFO L82 PathProgramCache]: Analyzing trace with hash 415928098, now seen corresponding path program 1 times [2020-10-12 11:15:15,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:15,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011738971] [2020-10-12 11:15:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:15,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:15,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-12 11:15:15,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:15:15,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-10-12 11:15:15,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:15,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 11:15:15,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 11:15:15,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 11:15:15,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:15,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:15,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:15,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:15,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:15,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:15,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:15,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:15,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:15,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:15,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:15,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:15:15,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:15,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:16,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:16,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:16,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:16,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 11:15:16,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:16,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:16,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:16,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:15:16,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:16,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:16,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:16,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:16,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 11:15:16,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:16,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:15:16,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 11:15:16,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:15:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 146 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-12 11:15:16,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011738971] [2020-10-12 11:15:16,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:16,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:15:16,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552190826] [2020-10-12 11:15:16,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:15:16,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:16,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:15:16,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:16,209 INFO L87 Difference]: Start difference. First operand 1113 states and 1282 transitions. Second operand 6 states. [2020-10-12 11:15:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:17,196 INFO L93 Difference]: Finished difference Result 2705 states and 3221 transitions. [2020-10-12 11:15:17,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:15:17,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 259 [2020-10-12 11:15:17,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:17,208 INFO L225 Difference]: With dead ends: 2705 [2020-10-12 11:15:17,209 INFO L226 Difference]: Without dead ends: 1598 [2020-10-12 11:15:17,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:15:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2020-10-12 11:15:17,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1430. [2020-10-12 11:15:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2020-10-12 11:15:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1655 transitions. [2020-10-12 11:15:17,264 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1655 transitions. Word has length 259 [2020-10-12 11:15:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:17,265 INFO L479 AbstractCegarLoop]: Abstraction has 1430 states and 1655 transitions. [2020-10-12 11:15:17,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:15:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1655 transitions. [2020-10-12 11:15:17,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-12 11:15:17,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:17,270 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:17,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:15:17,270 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:17,271 INFO L82 PathProgramCache]: Analyzing trace with hash 953529533, now seen corresponding path program 1 times [2020-10-12 11:15:17,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:17,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332981408] [2020-10-12 11:15:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:17,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:17,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:18,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:18,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:18,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-12 11:15:18,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:15:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1382 [2020-10-12 11:15:18,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 11:15:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 11:15:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:18,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:18,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:18,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:18,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:18,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:18,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:18,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:18,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:18,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:18,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:18,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:15:18,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:18,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:18,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:18,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:18,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:18,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 11:15:18,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:18,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:15:18,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:18,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:18,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 11:15:18,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-12 11:15:18,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332981408] [2020-10-12 11:15:18,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:18,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:15:18,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775656235] [2020-10-12 11:15:18,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:15:18,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:18,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:15:18,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:15:18,989 INFO L87 Difference]: Start difference. First operand 1430 states and 1655 transitions. Second operand 7 states. [2020-10-12 11:15:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:20,107 INFO L93 Difference]: Finished difference Result 3650 states and 4372 transitions. [2020-10-12 11:15:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:15:20,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-12 11:15:20,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:20,122 INFO L225 Difference]: With dead ends: 3650 [2020-10-12 11:15:20,122 INFO L226 Difference]: Without dead ends: 2226 [2020-10-12 11:15:20,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:15:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2020-10-12 11:15:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2205. [2020-10-12 11:15:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2205 states. [2020-10-12 11:15:20,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 2526 transitions. [2020-10-12 11:15:20,222 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 2526 transitions. Word has length 269 [2020-10-12 11:15:20,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:20,223 INFO L479 AbstractCegarLoop]: Abstraction has 2205 states and 2526 transitions. [2020-10-12 11:15:20,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:15:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 2526 transitions. [2020-10-12 11:15:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-12 11:15:20,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:20,232 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:20,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:15:20,233 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:20,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:20,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2070189823, now seen corresponding path program 1 times [2020-10-12 11:15:20,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:20,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128106425] [2020-10-12 11:15:20,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:20,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:20,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:20,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-12 11:15:20,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:20,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-10-12 11:15:20,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:20,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:20,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-12 11:15:20,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 11:15:20,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:20,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:20,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:20,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:20,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:20,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:20,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:20,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:20,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:20,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:15:20,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:20,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:20,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:20,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:20,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:20,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:20,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:15:20,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:20,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:20,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:20,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:15:20,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:15:20,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:15:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:20,923 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-12 11:15:20,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128106425] [2020-10-12 11:15:20,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:20,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:15:20,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380095772] [2020-10-12 11:15:20,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:15:20,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:20,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:15:20,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:15:20,925 INFO L87 Difference]: Start difference. First operand 2205 states and 2526 transitions. Second operand 5 states. [2020-10-12 11:15:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:22,013 INFO L93 Difference]: Finished difference Result 4859 states and 5650 transitions. [2020-10-12 11:15:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:15:22,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-10-12 11:15:22,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:22,023 INFO L225 Difference]: With dead ends: 4859 [2020-10-12 11:15:22,024 INFO L226 Difference]: Without dead ends: 2207 [2020-10-12 11:15:22,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-10-12 11:15:22,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2198. [2020-10-12 11:15:22,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2198 states. [2020-10-12 11:15:22,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2198 states to 2198 states and 2474 transitions. [2020-10-12 11:15:22,087 INFO L78 Accepts]: Start accepts. Automaton has 2198 states and 2474 transitions. Word has length 271 [2020-10-12 11:15:22,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:22,087 INFO L479 AbstractCegarLoop]: Abstraction has 2198 states and 2474 transitions. [2020-10-12 11:15:22,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:15:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2198 states and 2474 transitions. [2020-10-12 11:15:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-12 11:15:22,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:22,094 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:22,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:15:22,094 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:22,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:22,095 INFO L82 PathProgramCache]: Analyzing trace with hash 800036467, now seen corresponding path program 1 times [2020-10-12 11:15:22,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:22,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073007884] [2020-10-12 11:15:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:22,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:22,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:22,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:22,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-12 11:15:22,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-12 11:15:22,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-12 11:15:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 11:15:22,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:22,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:22,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:22,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:22,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:22,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:22,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:22,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:22,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:22,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:22,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:22,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:22,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:22,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:15:22,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:22,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:22,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:22,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:22,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:22,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:22,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:22,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:22,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:22,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:15:22,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:22,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:22,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:22,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:22,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 11:15:22,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:22,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:15:22,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 11:15:22,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-12 11:15:23,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073007884] [2020-10-12 11:15:23,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:23,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:15:23,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664231896] [2020-10-12 11:15:23,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:15:23,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:23,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:15:23,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:15:23,012 INFO L87 Difference]: Start difference. First operand 2198 states and 2474 transitions. Second operand 5 states. [2020-10-12 11:15:23,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:23,972 INFO L93 Difference]: Finished difference Result 4481 states and 5104 transitions. [2020-10-12 11:15:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:15:23,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 276 [2020-10-12 11:15:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:23,985 INFO L225 Difference]: With dead ends: 4481 [2020-10-12 11:15:23,986 INFO L226 Difference]: Without dead ends: 2201 [2020-10-12 11:15:23,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:23,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2020-10-12 11:15:24,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2192. [2020-10-12 11:15:24,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2192 states. [2020-10-12 11:15:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 2435 transitions. [2020-10-12 11:15:24,039 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 2435 transitions. Word has length 276 [2020-10-12 11:15:24,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:24,039 INFO L479 AbstractCegarLoop]: Abstraction has 2192 states and 2435 transitions. [2020-10-12 11:15:24,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:15:24,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 2435 transitions. [2020-10-12 11:15:24,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-12 11:15:24,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:24,046 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:24,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:15:24,046 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:24,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1990740291, now seen corresponding path program 1 times [2020-10-12 11:15:24,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:24,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101099536] [2020-10-12 11:15:24,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:24,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:24,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:24,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:24,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:25,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:29,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-12 11:15:29,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:15:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 11:15:29,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 11:15:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 11:15:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 11:15:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:29,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:29,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:29,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:29,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:15:29,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:29,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:29,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:29,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 11:15:29,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:29,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:15:29,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:29,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:29,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:15:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:29,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 11:15:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:29,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:29,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 11:15:29,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:29,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:15:29,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 11:15:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:29,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 11:15:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:29,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:29,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:15:29,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:29,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:15:29,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 11:15:29,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:15:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:29,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 11:15:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:29,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:29,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 11:15:29,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:15:29,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 11:15:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:29,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 11:15:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:29,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:29,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:29,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 11:15:29,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:15:29,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 11:15:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:29,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:15:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 316 proven. 39 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-12 11:15:29,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101099536] [2020-10-12 11:15:29,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:29,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 11:15:29,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322065917] [2020-10-12 11:15:29,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 11:15:29,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:29,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 11:15:29,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:15:29,605 INFO L87 Difference]: Start difference. First operand 2192 states and 2435 transitions. Second operand 11 states. [2020-10-12 11:15:31,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:31,898 INFO L93 Difference]: Finished difference Result 5450 states and 6119 transitions. [2020-10-12 11:15:31,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 11:15:31,899 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 290 [2020-10-12 11:15:31,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:31,910 INFO L225 Difference]: With dead ends: 5450 [2020-10-12 11:15:31,910 INFO L226 Difference]: Without dead ends: 2840 [2020-10-12 11:15:31,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:15:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2020-10-12 11:15:31,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2806. [2020-10-12 11:15:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2806 states. [2020-10-12 11:15:31,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3053 transitions. [2020-10-12 11:15:31,977 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3053 transitions. Word has length 290 [2020-10-12 11:15:31,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:31,977 INFO L479 AbstractCegarLoop]: Abstraction has 2806 states and 3053 transitions. [2020-10-12 11:15:31,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 11:15:31,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3053 transitions. [2020-10-12 11:15:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-12 11:15:31,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:31,984 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:31,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:15:31,985 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:31,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:31,985 INFO L82 PathProgramCache]: Analyzing trace with hash -2029642914, now seen corresponding path program 1 times [2020-10-12 11:15:31,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:31,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127438196] [2020-10-12 11:15:31,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:32,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:32,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:32,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:32,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:32,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-12 11:15:32,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:15:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-10-12 11:15:32,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:32,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:32,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-10-12 11:15:32,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 11:15:32,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:33,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:33,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:33,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:33,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:33,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:33,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:33,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:33,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:33,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:33,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:33,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:33,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:33,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:33,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:15:33,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:33,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:33,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:33,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:33,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:33,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:33,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:33,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:33,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:15:33,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:33,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:33,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:33,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:33,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:33,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:33,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:33,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:33,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:33,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-12 11:15:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:33,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:15:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 167 proven. 4 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-12 11:15:33,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127438196] [2020-10-12 11:15:33,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:33,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:15:33,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470796897] [2020-10-12 11:15:33,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:15:33,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:33,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:15:33,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:15:33,231 INFO L87 Difference]: Start difference. First operand 2806 states and 3053 transitions. Second operand 5 states. [2020-10-12 11:15:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:34,053 INFO L93 Difference]: Finished difference Result 5670 states and 6181 transitions. [2020-10-12 11:15:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:15:34,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 291 [2020-10-12 11:15:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:34,063 INFO L225 Difference]: With dead ends: 5670 [2020-10-12 11:15:34,063 INFO L226 Difference]: Without dead ends: 2916 [2020-10-12 11:15:34,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:15:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2020-10-12 11:15:34,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 2628. [2020-10-12 11:15:34,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2628 states. [2020-10-12 11:15:34,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 2827 transitions. [2020-10-12 11:15:34,126 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 2827 transitions. Word has length 291 [2020-10-12 11:15:34,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:34,127 INFO L479 AbstractCegarLoop]: Abstraction has 2628 states and 2827 transitions. [2020-10-12 11:15:34,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:15:34,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 2827 transitions. [2020-10-12 11:15:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-12 11:15:34,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:15:34,135 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:15:34,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:15:34,135 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:15:34,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:15:34,136 INFO L82 PathProgramCache]: Analyzing trace with hash -613537083, now seen corresponding path program 1 times [2020-10-12 11:15:34,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:15:34,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207782325] [2020-10-12 11:15:34,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:15:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:34,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:34,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:34,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:34,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-12 11:15:34,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-12 11:15:34,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-10-12 11:15:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 11:15:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:34,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:15:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:34,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:34,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:34,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:15:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:15:34,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:34,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:15:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:34,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:34,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:15:34,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:34,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:15:34,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:34,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:34,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:34,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:34,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:34,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 11:15:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:34,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:34,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:15:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:34,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-12 11:15:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:34,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:34,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:34,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 11:15:34,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:15:34,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:15:34,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:34,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:15:34,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:15:34,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 11:15:34,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:34,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 11:15:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:15:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:34,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:15:35,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:15:35,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 11:15:35,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:15:35,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 11:15:35,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:15:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:15:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:15:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 11:15:35,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:15:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 310 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-12 11:15:35,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207782325] [2020-10-12 11:15:35,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:15:35,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:15:35,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332364260] [2020-10-12 11:15:35,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:15:35,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:15:35,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:15:35,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:15:35,090 INFO L87 Difference]: Start difference. First operand 2628 states and 2827 transitions. Second operand 7 states. [2020-10-12 11:15:36,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:15:36,151 INFO L93 Difference]: Finished difference Result 4054 states and 4361 transitions. [2020-10-12 11:15:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:15:36,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 320 [2020-10-12 11:15:36,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:15:36,158 INFO L225 Difference]: With dead ends: 4054 [2020-10-12 11:15:36,158 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:15:36,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:15:36,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:15:36,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:15:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:15:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:15:36,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 320 [2020-10-12 11:15:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:15:36,168 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:15:36,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:15:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:15:36,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:15:36,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:15:36,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:15:37,367 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 168 [2020-10-12 11:15:38,005 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 187 [2020-10-12 11:15:40,856 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 272 DAG size of output: 181 [2020-10-12 11:15:41,729 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 74 [2020-10-12 11:15:42,935 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 182 DAG size of output: 103 [2020-10-12 11:15:42,940 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:15:42,942 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-12 11:15:42,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:15:42,943 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,943 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,943 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,943 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,943 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,943 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-12 11:15:42,944 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-12 11:15:42,945 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-12 11:15:42,946 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-12 11:15:42,946 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-12 11:15:42,946 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-12 11:15:42,946 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-12 11:15:42,946 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-12 11:15:42,947 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-12 11:15:42,947 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-12 11:15:42,947 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-12 11:15:42,947 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-12 11:15:42,947 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-12 11:15:42,947 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-12 11:15:42,947 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-12 11:15:42,948 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-12 11:15:42,948 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,949 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,949 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,949 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 505) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-12 11:15:42,950 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,951 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-12 11:15:42,952 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-12 11:15:42,953 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-12 11:15:42,953 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-12 11:15:42,953 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,953 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-12 11:15:42,954 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-12 11:15:42,955 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-12 11:15:42,956 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,957 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-12 11:15:42,958 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-12 11:15:42,959 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-12 11:15:42,959 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-12 11:15:42,959 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,959 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,959 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,959 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-12 11:15:42,960 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,961 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,962 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse27 (= |old(~a19~0)| 1)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a17~0 8)) (.cse14 (= ~a25~0 1)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse34 (= ~a28~0 10))) (let ((.cse2 (not (= 0 |old(~a25~0)|))) (.cse3 (not (= 9 |old(~a28~0)|))) (.cse15 (= ~a19~0 1)) (.cse8 (= ~a28~0 9)) (.cse33 (not (<= |old(~a11~0)| 0))) (.cse11 (= ~a28~0 |old(~a28~0)|)) (.cse24 (= ~a17~0 |old(~a17~0)|)) (.cse32 (not (<= |old(~a28~0)| 8))) (.cse30 (not (= 0 |old(~a19~0)|))) (.cse28 (not (<= |old(~a25~0)| 0))) (.cse19 (not (<= |old(~a25~0)| 1))) (.cse20 (not (<= |old(~a19~0)| 1))) (.cse21 (not (<= |old(~a17~0)| 8))) (.cse25 (<= ~a28~0 9)) (.cse26 (<= ~a25~0 1)) (.cse22 (not (<= 1 |old(~a19~0)|))) (.cse23 (not (<= |old(~a28~0)| 9))) (.cse17 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse16 (= 7 ~a28~0)) (.cse18 (not (= 7 |old(~a28~0)|))) (.cse29 (not (= 10 |old(~a28~0)|))) (.cse31 (and .cse5 .cse7 .cse14 .cse9 .cse34)) (.cse12 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse13 (not (= |old(~a25~0)| 1))) (.cse0 (not .cse27)) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse10 (= |old(~a11~0)| 1)) (.cse4 (not (= ~a21~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9) (not .cse10)) (or (not (= 7 |old(~a17~0)|)) (and .cse11 (= 7 ~a17~0) .cse5 .cse6 .cse9)) (or .cse12 .cse13 .cse0 (not (= 11 |old(~a28~0)|)) .cse1 .cse10 .cse4 (and .cse5 .cse7 .cse14 .cse9 (= ~a28~0 11))) (or .cse0 (not (= 0 |old(~a11~0)|)) .cse1 .cse2 .cse4 (and .cse5 .cse15 .cse6 .cse7 .cse16) .cse17 .cse18) (or .cse19 .cse20 .cse21 (not (<= |old(~a11~0)| 1)) (not (<= 8 |old(~a17~0)|)) .cse22 .cse23 .cse4 (not (<= 1 |old(~a11~0)|)) (not (<= 1 |old(~a25~0)|)) (and .cse24 (<= 1 ~a11~0) (<= 9 ~a28~0) (<= 1 ~a25~0) (<= ~a11~0 1) .cse25 .cse26 .cse9) (not (<= 9 |old(~a28~0)|))) (or .cse27 .cse28 (and .cse24 .cse5 .cse6 .cse16 .cse9) .cse18) (or .cse12 .cse13 .cse29 .cse30 .cse1 .cse10 .cse31 .cse4) (or .cse27 .cse32 (and .cse11 .cse5 .cse6 .cse7 .cse9) .cse1 .cse28 .cse10 .cse4) (or .cse12 .cse0 .cse1 .cse3 .cse4 .cse33 (and .cse5 .cse15 .cse6 .cse7 .cse8)) (or (and .cse5 .cse6 .cse7 .cse16 .cse9) .cse30 .cse1 .cse4 .cse18 .cse33) (or (and .cse11 .cse24 .cse5 .cse6 .cse9) .cse32 .cse30 .cse28) (or .cse19 .cse20 .cse21 (and .cse5 .cse25 (<= ~a17~0 8) .cse26 (< 7 ~a17~0) .cse9 (< 8 ~a28~0) (< 0 ~a25~0)) (not (< 8 |old(~a28~0)|)) .cse22 .cse23 .cse4 .cse17 (not (< 7 |old(~a17~0)|)) (not (< 0 |old(~a25~0)|))) (or .cse12 .cse29 .cse0 .cse1 .cse10 .cse4 (and .cse5 .cse6 .cse7 .cse9 .cse34)) (or .cse13 .cse1 .cse10 .cse4 (and .cse5 .cse7 .cse16 .cse14 .cse9) .cse18) (or .cse13 .cse29 (not (= |old(~a19~0)| |old(~a25~0)|)) .cse1 .cse31 .cse4 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse12 .cse13 (and .cse5 .cse7 .cse14 (= ~a28~0 8) .cse9) .cse0 .cse1 .cse10 .cse4 (not (= 8 |old(~a28~0)|)))))) [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-12 11:15:42,963 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,964 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-12 11:15:42,965 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-12 11:15:42,966 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-12 11:15:42,967 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:15:42,968 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0) (= ~a11~0 0)) [2020-10-12 11:15:42,968 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:15:42,968 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:15:42,969 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0)) (not (= 7 |old(~a28~0)|))) [2020-10-12 11:15:42,969 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse12 (= ~a11~0 1)) (.cse8 (= ~a19~0 1))) (let ((.cse9 (= ~a25~0 0)) (.cse0 (= ~a19~0 0)) (.cse5 (<= ~a28~0 8)) (.cse11 (= ~a28~0 9)) (.cse6 (not .cse8)) (.cse10 (= 7 ~a28~0)) (.cse7 (<= ~a25~0 0)) (.cse4 (= ~a28~0 10)) (.cse1 (= ~a17~0 8)) (.cse2 (= ~a25~0 1)) (.cse3 (not .cse12))) (or (= 7 ~a17~0) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~a25~0)|)) (and .cse1 .cse5 .cse6 .cse3 .cse7) (and .cse8 .cse1 .cse2 .cse3 (= ~a28~0 8)) (and (= ~a11~0 |old(~a11~0)|) .cse9 .cse1 .cse10) (and .cse8 .cse9 .cse1 .cse11 .cse12) (and .cse0 .cse5 .cse7) (and .cse8 .cse1 .cse3 .cse4) (not (= 0 |old(~a11~0)|)) (and .cse1 .cse10 .cse2 .cse3) (and (<= ~a11~0 0) .cse8 (= ~a25~0 |old(~a25~0)|) .cse1 .cse11) (and .cse6 .cse10 .cse7) (not (= ~a21~0 1)) (and .cse1 .cse2 (= ~a25~0 ~a19~0) .cse4) (not (= 7 |old(~a28~0)|)) (and (<= 9 ~a28~0) (<= 1 ~a25~0) (<= 8 ~a17~0) (<= ~a19~0 1) (<= ~a28~0 9) (<= ~a17~0 8) (<= ~a25~0 1) (<= 1 ~a19~0)) (and .cse8 .cse1 .cse2 .cse3 (= ~a28~0 11))))) [2020-10-12 11:15:42,969 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-12 11:15:42,969 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-12 11:15:42,969 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse19 (= ~a11~0 1)) (.cse4 (= ~a19~0 1))) (let ((.cse6 (= ~a28~0 9)) (.cse15 (<= ~a28~0 8)) (.cse16 (not .cse4)) (.cse17 (<= ~a25~0 0)) (.cse18 (= ~a25~0 0)) (.cse21 (= 7 ~a28~0)) (.cse20 (= ~a19~0 0)) (.cse2 (= ~a28~0 10)) (.cse7 (<= 9 ~a28~0)) (.cse8 (<= 1 ~a25~0)) (.cse9 (<= 8 ~a17~0)) (.cse22 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse10 (<= ~a19~0 1)) (.cse11 (<= ~a28~0 9)) (.cse12 (<= ~a17~0 8)) (.cse13 (<= ~a25~0 1)) (.cse14 (<= 1 ~a19~0)) (.cse3 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse0 (= ~a17~0 8)) (.cse1 (= ~a25~0 1)) (.cse5 (not .cse19))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 (= ~a25~0 ~a19~0) .cse2) (and .cse3 .cse4 .cse0 .cse1 .cse5 (= ~a28~0 8)) (and .cse3 (<= ~a11~0 0) .cse4 (= ~a25~0 |old(~a25~0)|) .cse0 .cse6) (= 7 ~a17~0) (not (= |old(~a19~0)| 1)) (and (<= 1 ~a11~0) .cse7 .cse8 (<= ~a11~0 1) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and .cse0 .cse15 .cse16 .cse5 .cse17) (and .cse4 .cse18 .cse0 .cse6 .cse19) (and .cse20 .cse15 .cse17) (not (= 0 |old(~a11~0)|)) (and .cse0 .cse21 .cse1 .cse5) (and .cse16 .cse21 .cse17) (and .cse18 .cse0 .cse22 .cse21 (= ~a11~0 0)) (not (= ~a21~0 1)) (and .cse3 .cse20 .cse0 .cse1 .cse5 .cse2) (and .cse3 .cse4 .cse0 .cse5 .cse2) (not (= 7 |old(~a28~0)|)) (and .cse7 .cse8 .cse9 .cse22 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse3 .cse4 .cse0 .cse1 .cse5 (= ~a28~0 11))))) [2020-10-12 11:15:42,969 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-12 11:15:42,969 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-12 11:15:43,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:15:43 BoogieIcfgContainer [2020-10-12 11:15:43,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:15:43,008 INFO L168 Benchmark]: Toolchain (without parser) took 89121.48 ms. Allocated memory was 139.5 MB in the beginning and 1.1 GB in the end (delta: 961.0 MB). Free memory was 99.4 MB in the beginning and 764.5 MB in the end (delta: -665.2 MB). Peak memory consumption was 937.7 MB. Max. memory is 7.1 GB. [2020-10-12 11:15:43,012 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 11:15:43,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.68 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 169.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-10-12 11:15:43,013 INFO L168 Benchmark]: Boogie Preprocessor took 100.10 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 164.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:15:43,013 INFO L168 Benchmark]: RCFGBuilder took 1292.68 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 180.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:15:43,014 INFO L168 Benchmark]: TraceAbstraction took 86958.73 ms. Allocated memory was 237.5 MB in the beginning and 1.1 GB in the end (delta: 863.0 MB). Free memory was 180.4 MB in the beginning and 764.5 MB in the end (delta: -584.1 MB). Peak memory consumption was 920.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:15:43,022 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.68 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 169.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.10 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 164.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1292.68 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 180.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 86958.73 ms. Allocated memory was 237.5 MB in the beginning and 1.1 GB in the end (delta: 863.0 MB). Free memory was 180.4 MB in the beginning and 764.5 MB in the end (delta: -584.1 MB). Peak memory consumption was 920.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 505]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((7 == a17 || !(\old(a19) == 1)) || !(8 == \old(a17))) || ((((a19 == 0 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 10)) || !(0 == \old(a25))) || ((((a17 == 8 && a28 <= 8) && !(a19 == 1)) && !(a11 == 1)) && a25 <= 0)) || ((((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 8)) || (((a11 == \old(a11) && a25 == 0) && a17 == 8) && 7 == a28)) || ((((a19 == 1 && a25 == 0) && a17 == 8) && a28 == 9) && a11 == 1)) || ((a19 == 0 && a28 <= 8) && a25 <= 0)) || (((a19 == 1 && a17 == 8) && !(a11 == 1)) && a28 == 10)) || !(0 == \old(a11))) || (((a17 == 8 && 7 == a28) && a25 == 1) && !(a11 == 1))) || ((((a11 <= 0 && a19 == 1) && a25 == \old(a25)) && a17 == 8) && a28 == 9)) || ((!(a19 == 1) && 7 == a28) && a25 <= 0)) || !(a21 == 1)) || (((a17 == 8 && a25 == 1) && a25 == a19) && a28 == 10)) || !(7 == \old(a28))) || (((((((9 <= a28 && 1 <= a25) && 8 <= a17) && a19 <= 1) && a28 <= 9) && a17 <= 8) && a25 <= 1) && 1 <= a19)) || ((((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 11) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 80.0s, OverallIterations: 19, TraceHistogramMax: 6, AutomataDifference: 37.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 716 SDtfs, 9031 SDslu, 1051 SDs, 0 SdLazy, 16896 SolverSat, 1709 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 441 GetRequests, 174 SyntacticMatches, 9 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1383 ImplicationChecksByTransitivity, 18.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2806occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 682 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 201 PreInvPairs, 259 NumberOfFragments, 1593 HoareAnnotationTreeSize, 201 FomulaSimplifications, 9636887 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2035986 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 37.8s InterpolantComputationTime, 4015 NumberOfCodeBlocks, 4015 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3996 ConstructedInterpolants, 0 QuantifiedInterpolants, 7319806 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 2631/2817 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...