/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/Problem10_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 13:03:55,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 13:03:55,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 13:03:55,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 13:03:55,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 13:03:55,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 13:03:55,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 13:03:55,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 13:03:55,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 13:03:55,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 13:03:55,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 13:03:55,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 13:03:55,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 13:03:55,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 13:03:55,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 13:03:55,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 13:03:55,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 13:03:55,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 13:03:55,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 13:03:55,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 13:03:55,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 13:03:55,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 13:03:55,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 13:03:55,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 13:03:55,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 13:03:55,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 13:03:55,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 13:03:55,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 13:03:55,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 13:03:55,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 13:03:55,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 13:03:55,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 13:03:55,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 13:03:55,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 13:03:55,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 13:03:55,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 13:03:55,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 13:03:55,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 13:03:55,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 13:03:55,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 13:03:55,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 13:03:55,710 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 13:03:55,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 13:03:55,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 13:03:55,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 13:03:55,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 13:03:55,752 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 13:03:55,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 13:03:55,753 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 13:03:55,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 13:03:55,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 13:03:55,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 13:03:55,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 13:03:55,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 13:03:55,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 13:03:55,755 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 13:03:55,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 13:03:55,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 13:03:55,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 13:03:55,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 13:03:55,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 13:03:55,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 13:03:55,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 13:03:55,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 13:03:55,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 13:03:55,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 13:03:55,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 13:03:55,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 13:03:55,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 13:03:55,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 13:03:55,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 13:03:55,758 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 13:03:56,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 13:03:56,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 13:03:56,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 13:03:56,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 13:03:56,094 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 13:03:56,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label01.c [2020-10-12 13:03:56,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d05b8d5eb/734b0b9d5e17460a89e45f15b99ed893/FLAGae777e7e7 [2020-10-12 13:03:56,802 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 13:03:56,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label01.c [2020-10-12 13:03:56,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d05b8d5eb/734b0b9d5e17460a89e45f15b99ed893/FLAGae777e7e7 [2020-10-12 13:03:57,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d05b8d5eb/734b0b9d5e17460a89e45f15b99ed893 [2020-10-12 13:03:57,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 13:03:57,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 13:03:57,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 13:03:57,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 13:03:57,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 13:03:57,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:57,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a86aac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57, skipping insertion in model container [2020-10-12 13:03:57,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:57,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 13:03:57,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 13:03:57,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:03:57,628 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 13:03:57,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 13:03:57,891 INFO L208 MainTranslator]: Completed translation [2020-10-12 13:03:57,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57 WrapperNode [2020-10-12 13:03:57,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 13:03:57,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 13:03:57,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 13:03:57,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 13:03:57,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:57,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:57,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:57,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:57,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:57,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:58,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (1/1) ... [2020-10-12 13:03:58,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 13:03:58,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 13:03:58,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 13:03:58,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 13:03:58,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (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 13:03:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 13:03:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 13:03:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 13:03:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 13:03:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 13:03:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 13:03:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 13:03:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 13:03:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 13:03:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 13:03:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 13:03:59,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 13:03:59,428 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 13:03:59,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:03:59 BoogieIcfgContainer [2020-10-12 13:03:59,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 13:03:59,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 13:03:59,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 13:03:59,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 13:03:59,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 01:03:57" (1/3) ... [2020-10-12 13:03:59,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbaa600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:03:59, skipping insertion in model container [2020-10-12 13:03:59,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 01:03:57" (2/3) ... [2020-10-12 13:03:59,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbaa600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 01:03:59, skipping insertion in model container [2020-10-12 13:03:59,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 01:03:59" (3/3) ... [2020-10-12 13:03:59,453 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label01.c [2020-10-12 13:03:59,465 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 13:03:59,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 13:03:59,491 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 13:03:59,527 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 13:03:59,528 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 13:03:59,528 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 13:03:59,528 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 13:03:59,529 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 13:03:59,529 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 13:03:59,529 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 13:03:59,529 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 13:03:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-12 13:03:59,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-12 13:03:59,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:03:59,574 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] [2020-10-12 13:03:59,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:03:59,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:03:59,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1584910874, now seen corresponding path program 1 times [2020-10-12 13:03:59,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:03:59,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438161980] [2020-10-12 13:03:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:03:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:03:59,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:00,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:00,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 13:04:00,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:00,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-12 13:04:00,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:04:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:04:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 13:04:00,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 13:04:00,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:00,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:00,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:00,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:00,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:00,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 13:04:00,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:00,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:04:00,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:00,435 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 13:04:00,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438161980] [2020-10-12 13:04:00,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:04:00,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 13:04:00,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480833416] [2020-10-12 13:04:00,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:04:00,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:00,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:04:00,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:04:00,463 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-10-12 13:04:02,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:02,489 INFO L93 Difference]: Finished difference Result 730 states and 1302 transitions. [2020-10-12 13:04:02,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 13:04:02,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-12 13:04:02,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:02,530 INFO L225 Difference]: With dead ends: 730 [2020-10-12 13:04:02,530 INFO L226 Difference]: Without dead ends: 447 [2020-10-12 13:04:02,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:04:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-12 13:04:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-10-12 13:04:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-12 13:04:02,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 648 transitions. [2020-10-12 13:04:02,657 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 648 transitions. Word has length 59 [2020-10-12 13:04:02,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:02,658 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 648 transitions. [2020-10-12 13:04:02,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:04:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 648 transitions. [2020-10-12 13:04:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-12 13:04:02,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:02,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:02,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 13:04:02,668 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:02,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:02,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1008578807, now seen corresponding path program 1 times [2020-10-12 13:04:02,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:02,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791367793] [2020-10-12 13:04:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:02,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:03,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:03,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:03,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 13:04:03,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:04:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-12 13:04:03,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:03,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:03,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-12 13:04:03,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 13:04:03,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:03,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:03,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:03,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:03,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:03,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:03,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 13:04:03,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:03,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:03,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:03,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:04:03,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:03,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 13:04:03,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:04:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:04:03,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791367793] [2020-10-12 13:04:03,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:04:03,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 13:04:03,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055408661] [2020-10-12 13:04:03,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 13:04:03,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:03,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 13:04:03,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 13:04:03,624 INFO L87 Difference]: Start difference. First operand 441 states and 648 transitions. Second operand 6 states. [2020-10-12 13:04:05,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:05,005 INFO L93 Difference]: Finished difference Result 1321 states and 1992 transitions. [2020-10-12 13:04:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:04:05,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2020-10-12 13:04:05,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:05,014 INFO L225 Difference]: With dead ends: 1321 [2020-10-12 13:04:05,014 INFO L226 Difference]: Without dead ends: 886 [2020-10-12 13:04:05,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:04:05,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-10-12 13:04:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 876. [2020-10-12 13:04:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2020-10-12 13:04:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1284 transitions. [2020-10-12 13:04:05,072 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1284 transitions. Word has length 138 [2020-10-12 13:04:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:05,073 INFO L479 AbstractCegarLoop]: Abstraction has 876 states and 1284 transitions. [2020-10-12 13:04:05,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 13:04:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1284 transitions. [2020-10-12 13:04:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-12 13:04:05,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:05,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:05,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 13:04:05,112 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:05,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:05,113 INFO L82 PathProgramCache]: Analyzing trace with hash -403350922, now seen corresponding path program 1 times [2020-10-12 13:04:05,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:05,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381420253] [2020-10-12 13:04:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:05,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:05,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:05,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:06,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:06,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 13:04:06,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:04:06,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1445 [2020-10-12 13:04:06,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:06,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:04:06,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:04:06,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 13:04:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:06,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:06,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:06,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:06,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 13:04:06,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:04:06,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:06,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:06,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:06,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:06,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:04:06,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:06,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-12 13:04:06,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:06,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:06,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:04:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 13:04:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:07,062 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:04:07,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381420253] [2020-10-12 13:04:07,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:04:07,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:04:07,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600683872] [2020-10-12 13:04:07,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:04:07,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:07,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:04:07,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:04:07,066 INFO L87 Difference]: Start difference. First operand 876 states and 1284 transitions. Second operand 7 states. [2020-10-12 13:04:08,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:08,486 INFO L93 Difference]: Finished difference Result 1778 states and 2663 transitions. [2020-10-12 13:04:08,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 13:04:08,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-12 13:04:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:08,497 INFO L225 Difference]: With dead ends: 1778 [2020-10-12 13:04:08,497 INFO L226 Difference]: Without dead ends: 908 [2020-10-12 13:04:08,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:04:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-10-12 13:04:08,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 741. [2020-10-12 13:04:08,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-10-12 13:04:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 919 transitions. [2020-10-12 13:04:08,536 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 919 transitions. Word has length 171 [2020-10-12 13:04:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:08,536 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 919 transitions. [2020-10-12 13:04:08,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:04:08,537 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 919 transitions. [2020-10-12 13:04:08,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-12 13:04:08,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:08,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:08,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 13:04:08,543 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:08,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:08,543 INFO L82 PathProgramCache]: Analyzing trace with hash -462815691, now seen corresponding path program 1 times [2020-10-12 13:04:08,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:08,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140823564] [2020-10-12 13:04:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:08,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:08,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:09,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:10,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:10,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-12 13:04:10,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 13:04:10,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1646 [2020-10-12 13:04:10,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:10,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:04:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 13:04:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 13:04:10,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:10,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:10,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:10,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:10,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:10,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 13:04:10,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:10,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:10,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:10,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 13:04:10,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:10,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:10,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:10,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:10,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 13:04:10,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:10,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-12 13:04:10,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:04:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 13:04:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 13:04:10,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140823564] [2020-10-12 13:04:10,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 13:04:10,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 13:04:10,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788874891] [2020-10-12 13:04:10,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:04:10,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:10,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:04:10,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:04:10,720 INFO L87 Difference]: Start difference. First operand 741 states and 919 transitions. Second operand 7 states. [2020-10-12 13:04:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:12,053 INFO L93 Difference]: Finished difference Result 1639 states and 2020 transitions. [2020-10-12 13:04:12,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 13:04:12,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-10-12 13:04:12,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:12,065 INFO L225 Difference]: With dead ends: 1639 [2020-10-12 13:04:12,065 INFO L226 Difference]: Without dead ends: 904 [2020-10-12 13:04:12,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 13:04:12,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-10-12 13:04:12,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 892. [2020-10-12 13:04:12,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2020-10-12 13:04:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1082 transitions. [2020-10-12 13:04:12,112 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1082 transitions. Word has length 176 [2020-10-12 13:04:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:12,112 INFO L479 AbstractCegarLoop]: Abstraction has 892 states and 1082 transitions. [2020-10-12 13:04:12,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:04:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1082 transitions. [2020-10-12 13:04:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-12 13:04:12,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:12,121 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:12,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 13:04:12,121 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:12,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:12,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1492207022, now seen corresponding path program 1 times [2020-10-12 13:04:12,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:12,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428972903] [2020-10-12 13:04:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:12,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:12,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:13,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:13,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 13:04:13,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:04:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 906 [2020-10-12 13:04:13,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-12 13:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 13:04:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:13,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:13,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:13,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:13,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:13,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 13:04:13,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:13,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:13,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:13,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:13,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:13,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:04:13,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:13,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 13:04:13,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:13,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:13,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:13,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:13,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:13,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 13:04:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:13,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:13,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:13,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 13:04:13,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 13:04:13,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:13,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:13,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 13:04:13,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-12 13:04:13,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428972903] [2020-10-12 13:04:13,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:04:13,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:04:13,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977623211] [2020-10-12 13:04:13,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:04:13,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:13,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:04:13,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:04:13,422 INFO L87 Difference]: Start difference. First operand 892 states and 1082 transitions. Second operand 5 states. [2020-10-12 13:04:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:14,649 INFO L93 Difference]: Finished difference Result 1188 states and 1490 transitions. [2020-10-12 13:04:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:04:14,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 241 [2020-10-12 13:04:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:14,657 INFO L225 Difference]: With dead ends: 1188 [2020-10-12 13:04:14,657 INFO L226 Difference]: Without dead ends: 1186 [2020-10-12 13:04:14,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 13:04:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2020-10-12 13:04:14,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 894. [2020-10-12 13:04:14,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-12 13:04:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1086 transitions. [2020-10-12 13:04:14,699 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1086 transitions. Word has length 241 [2020-10-12 13:04:14,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:14,700 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1086 transitions. [2020-10-12 13:04:14,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:04:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1086 transitions. [2020-10-12 13:04:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-12 13:04:14,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:14,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:14,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 13:04:14,707 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:14,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1238149995, now seen corresponding path program 1 times [2020-10-12 13:04:14,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:14,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38940616] [2020-10-12 13:04:14,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:14,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:15,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:15,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:16,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:16,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-12 13:04:16,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:04:16,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2026 [2020-10-12 13:04:16,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-12 13:04:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-12 13:04:16,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:16,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:16,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:16,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:04:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:16,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:16,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:16,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:16,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 13:04:16,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:16,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 13:04:16,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:16,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:16,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 13:04:16,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:16,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 13:04:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:17,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:17,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:17,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:04:17,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-12 13:04:17,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:04:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 13:04:17,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:17,421 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 13:04:17,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38940616] [2020-10-12 13:04:17,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:04:17,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:04:17,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597507050] [2020-10-12 13:04:17,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:04:17,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:17,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:04:17,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:04:17,429 INFO L87 Difference]: Start difference. First operand 894 states and 1086 transitions. Second operand 7 states. [2020-10-12 13:04:18,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:18,991 INFO L93 Difference]: Finished difference Result 1955 states and 2460 transitions. [2020-10-12 13:04:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:04:18,992 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 264 [2020-10-12 13:04:18,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:18,999 INFO L225 Difference]: With dead ends: 1955 [2020-10-12 13:04:18,999 INFO L226 Difference]: Without dead ends: 912 [2020-10-12 13:04:19,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:04:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-10-12 13:04:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 892. [2020-10-12 13:04:19,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2020-10-12 13:04:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1055 transitions. [2020-10-12 13:04:19,040 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1055 transitions. Word has length 264 [2020-10-12 13:04:19,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:19,041 INFO L479 AbstractCegarLoop]: Abstraction has 892 states and 1055 transitions. [2020-10-12 13:04:19,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:04:19,041 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1055 transitions. [2020-10-12 13:04:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-12 13:04:19,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:19,048 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 13:04:19,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 13:04:19,049 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:19,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:19,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1747156046, now seen corresponding path program 1 times [2020-10-12 13:04:19,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:19,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18984924] [2020-10-12 13:04:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:19,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:19,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:19,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:24,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:24,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-12 13:04:24,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:04:24,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 13:04:24,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:24,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:04:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-12 13:04:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-12 13:04:24,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:24,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:24,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:24,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:24,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:24,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:24,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 13:04:24,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:24,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:24,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:24,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:24,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:24,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:24,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:24,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 13:04:24,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 13:04:24,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 13:04:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:24,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 13:04:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:24,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:24,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:24,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:24,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:04:24,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 13:04:24,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-12 13:04:24,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:04:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:04:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:24,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-12 13:04:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:24,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:24,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:24,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:04:24,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:24,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-12 13:04:24,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:24,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:24,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:04:24,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 13:04:24,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 290 proven. 71 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 13:04:25,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18984924] [2020-10-12 13:04:25,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:04:25,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 13:04:25,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125925670] [2020-10-12 13:04:25,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 13:04:25,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:25,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 13:04:25,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 13:04:25,230 INFO L87 Difference]: Start difference. First operand 892 states and 1055 transitions. Second operand 9 states. [2020-10-12 13:04:27,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:27,557 INFO L93 Difference]: Finished difference Result 2116 states and 2627 transitions. [2020-10-12 13:04:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 13:04:27,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 327 [2020-10-12 13:04:27,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:27,566 INFO L225 Difference]: With dead ends: 2116 [2020-10-12 13:04:27,566 INFO L226 Difference]: Without dead ends: 1373 [2020-10-12 13:04:27,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-10-12 13:04:27,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-10-12 13:04:27,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1045. [2020-10-12 13:04:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-10-12 13:04:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1222 transitions. [2020-10-12 13:04:27,605 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1222 transitions. Word has length 327 [2020-10-12 13:04:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:27,606 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1222 transitions. [2020-10-12 13:04:27,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 13:04:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1222 transitions. [2020-10-12 13:04:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-10-12 13:04:27,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:27,632 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 13:04:27,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 13:04:27,633 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:27,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:27,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1236644899, now seen corresponding path program 1 times [2020-10-12 13:04:27,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:27,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676922881] [2020-10-12 13:04:27,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:27,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:27,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:28,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:29,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:32,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:32,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 386 [2020-10-12 13:04:32,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 13:04:32,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4367 [2020-10-12 13:04:32,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 13:04:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-12 13:04:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-12 13:04:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:32,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:32,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:32,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:32,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:32,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:32,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 13:04:32,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:32,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:32,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:32,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:32,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:32,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 13:04:32,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:32,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 13:04:32,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:32,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 13:04:32,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:32,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 13:04:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:32,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:32,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:32,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 13:04:32,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 13:04:32,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:04:32,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 13:04:32,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 13:04:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:32,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:32,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:32,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:04:32,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-12 13:04:32,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 13:04:32,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-12 13:04:32,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:33,129 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 337 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-12 13:04:33,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676922881] [2020-10-12 13:04:33,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:04:33,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 13:04:33,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799878047] [2020-10-12 13:04:33,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 13:04:33,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:33,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 13:04:33,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 13:04:33,132 INFO L87 Difference]: Start difference. First operand 1045 states and 1222 transitions. Second operand 7 states. [2020-10-12 13:04:34,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:34,617 INFO L93 Difference]: Finished difference Result 2404 states and 2900 transitions. [2020-10-12 13:04:34,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 13:04:34,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 372 [2020-10-12 13:04:34,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:34,628 INFO L225 Difference]: With dead ends: 2404 [2020-10-12 13:04:34,628 INFO L226 Difference]: Without dead ends: 1508 [2020-10-12 13:04:34,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 13:04:34,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-10-12 13:04:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1496. [2020-10-12 13:04:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-10-12 13:04:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1753 transitions. [2020-10-12 13:04:34,670 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1753 transitions. Word has length 372 [2020-10-12 13:04:34,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:34,671 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1753 transitions. [2020-10-12 13:04:34,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 13:04:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1753 transitions. [2020-10-12 13:04:34,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-10-12 13:04:34,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 13:04:34,680 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-12 13:04:34,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 13:04:34,681 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 13:04:34,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 13:04:34,681 INFO L82 PathProgramCache]: Analyzing trace with hash -2008392303, now seen corresponding path program 1 times [2020-10-12 13:04:34,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 13:04:34,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346649631] [2020-10-12 13:04:34,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 13:04:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:34,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:34,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:35,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:35,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:39,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:39,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-12 13:04:39,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 13:04:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4583 [2020-10-12 13:04:39,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 13:04:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 337 [2020-10-12 13:04:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 13:04:39,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:39,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 13:04:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:39,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:39,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:39,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 13:04:39,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 13:04:39,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:39,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 13:04:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:39,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:39,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:39,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 13:04:39,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 13:04:39,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:39,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 13:04:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:39,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:39,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:39,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 13:04:39,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:39,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 13:04:39,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:39,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 13:04:39,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:39,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 13:04:39,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 13:04:39,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 13:04:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 13:04:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 13:04:39,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 13:04:39,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 13:04:39,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 13:04:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 13:04:39,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 13:04:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 13:04:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 13:04:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-12 13:04:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 13:04:39,848 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 159 proven. 3 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2020-10-12 13:04:39,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346649631] [2020-10-12 13:04:39,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 13:04:39,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 13:04:39,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907499826] [2020-10-12 13:04:39,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 13:04:39,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 13:04:39,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 13:04:39,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 13:04:39,851 INFO L87 Difference]: Start difference. First operand 1496 states and 1753 transitions. Second operand 5 states. [2020-10-12 13:04:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 13:04:41,068 INFO L93 Difference]: Finished difference Result 3137 states and 3781 transitions. [2020-10-12 13:04:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 13:04:41,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2020-10-12 13:04:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 13:04:41,071 INFO L225 Difference]: With dead ends: 3137 [2020-10-12 13:04:41,071 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 13:04:41,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 13:04:41,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 13:04:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 13:04:41,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 13:04:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 13:04:41,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 382 [2020-10-12 13:04:41,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 13:04:41,079 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 13:04:41,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 13:04:41,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 13:04:41,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 13:04:41,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 13:04:41,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 13:04:41,742 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 25 [2020-10-12 13:04:41,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:04:41,939 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-12 13:04:41,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,940 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-10-12 13:04:41,941 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-10-12 13:04:41,942 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-10-12 13:04:41,942 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,942 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,942 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,942 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-12 13:04:41,943 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-10-12 13:04:41,944 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,945 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,945 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,945 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,945 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,945 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-10-12 13:04:41,946 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-10-12 13:04:41,947 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-10-12 13:04:41,947 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,947 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,947 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,949 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,949 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,949 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-10-12 13:04:41,949 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-10-12 13:04:41,949 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-10-12 13:04:41,949 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-12 13:04:41,950 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-12 13:04:41,950 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-12 13:04:41,950 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-12 13:04:41,950 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-12 13:04:41,950 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-10-12 13:04:41,950 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-10-12 13:04:41,950 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,951 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-12 13:04:41,952 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-12 13:04:41,952 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-12 13:04:41,952 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-12 13:04:41,952 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-12 13:04:41,952 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-10-12 13:04:41,952 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-10-12 13:04:41,952 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,953 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-12 13:04:41,954 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-12 13:04:41,955 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-10-12 13:04:41,955 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-10-12 13:04:41,955 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-10-12 13:04:41,956 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-10-12 13:04:41,956 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-10-12 13:04:41,957 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-10-12 13:04:41,958 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-10-12 13:04:41,958 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-12 13:04:41,958 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-12 13:04:41,958 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-12 13:04:41,958 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-12 13:04:41,959 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-12 13:04:41,959 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-12 13:04:41,959 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-10-12 13:04:41,959 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-10-12 13:04:41,959 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-10-12 13:04:41,959 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-10-12 13:04:41,960 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-10-12 13:04:41,961 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-10-12 13:04:41,963 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or (not (<= (+ |old(~a1~0)| 551894) 0)) .cse0) (or .cse0 (not (<= 1 |old(~a10~0)|))) (or .cse0 (not (<= 8 |old(~a19~0)|))))) [2020-10-12 13:04:41,963 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-10-12 13:04:41,963 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-10-12 13:04:41,963 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-10-12 13:04:41,963 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,963 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,963 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,963 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-12 13:04:41,964 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,965 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-12 13:04:41,966 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,967 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-12 13:04:41,968 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-12 13:04:41,969 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-12 13:04:41,969 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-12 13:04:41,969 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-10-12 13:04:41,969 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-10-12 13:04:41,969 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-10-12 13:04:41,969 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 13:04:41,969 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-12 13:04:41,969 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 13:04:41,969 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 13:04:41,970 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23))) [2020-10-12 13:04:41,970 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-10-12 13:04:41,970 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (<= 8 ~a19~0) (not (= 9 |old(~a19~0)|)) (<= (+ ~a1~0 551894) 0) (<= 1 ~a10~0) (not (<= |old(~a1~0)| 23))) [2020-10-12 13:04:41,970 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-10-12 13:04:41,970 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-10-12 13:04:41,970 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (<= 8 ~a19~0) (not (= 9 |old(~a19~0)|)) (<= (+ ~a1~0 551894) 0) (<= 1 ~a10~0) (not (<= |old(~a1~0)| 23))) [2020-10-12 13:04:41,970 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-10-12 13:04:41,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 01:04:41 BoogieIcfgContainer [2020-10-12 13:04:41,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 13:04:41,997 INFO L168 Benchmark]: Toolchain (without parser) took 44945.15 ms. Allocated memory was 138.9 MB in the beginning and 939.0 MB in the end (delta: 800.1 MB). Free memory was 101.0 MB in the beginning and 567.9 MB in the end (delta: -466.9 MB). Peak memory consumption was 333.2 MB. Max. memory is 7.1 GB. [2020-10-12 13:04:41,998 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 13:04:41,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 837.06 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 168.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-10-12 13:04:42,000 INFO L168 Benchmark]: Boogie Preprocessor took 122.02 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-12 13:04:42,005 INFO L168 Benchmark]: RCFGBuilder took 1424.85 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 164.1 MB in the beginning and 180.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-10-12 13:04:42,006 INFO L168 Benchmark]: TraceAbstraction took 42551.26 ms. Allocated memory was 234.9 MB in the beginning and 939.0 MB in the end (delta: 704.1 MB). Free memory was 180.1 MB in the beginning and 567.9 MB in the end (delta: -387.7 MB). Peak memory consumption was 316.4 MB. Max. memory is 7.1 GB. [2020-10-12 13:04:42,021 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 837.06 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 168.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.02 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1424.85 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 164.1 MB in the beginning and 180.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42551.26 ms. Allocated memory was 234.9 MB in the beginning and 939.0 MB in the end (delta: 704.1 MB). Free memory was 180.1 MB in the beginning and 567.9 MB in the end (delta: -387.7 MB). Peak memory consumption was 316.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 163]: 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: 582]: Loop Invariant Derived loop invariant: (((((!(23 <= \old(a1)) || !(\old(a10) <= 0)) || 8 <= a19) || !(9 == \old(a19))) || a1 + 551894 <= 0) || 1 <= a10) || !(\old(a1) <= 23) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 41.5s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 246 SDtfs, 4050 SDslu, 314 SDs, 0 SdLazy, 8763 SolverSat, 1361 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1496occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 847 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 60 PreInvPairs, 88 NumberOfFragments, 179 HoareAnnotationTreeSize, 60 FomulaSimplifications, 11974 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1438 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 2130 NumberOfCodeBlocks, 2130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2121 ConstructedInterpolants, 0 QuantifiedInterpolants, 1272904 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 1646/1731 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...