/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 [2020-10-14 02:28:28,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:28:28,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:28:28,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:28:28,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:28:28,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:28:28,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:28:28,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:28:28,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:28:28,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:28:28,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:28:28,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:28:28,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:28:28,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:28:28,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:28:28,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:28:28,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:28:28,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:28:28,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:28:28,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:28:28,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:28:28,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:28:28,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:28:28,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:28:28,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:28:28,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:28:28,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:28:28,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:28:28,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:28:28,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:28:28,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:28:28,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:28:28,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:28:28,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:28:28,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:28:28,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:28:28,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:28:28,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:28:28,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:28:28,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:28:28,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:28:28,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 02:28:28,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:28:28,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:28:28,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:28:28,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:28:28,589 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:28:28,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:28:28,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:28:28,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:28:28,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:28:28,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:28:28,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:28:28,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:28:28,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:28:28,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:28:28,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:28:28,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:28:28,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:28:28,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:28:28,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:28:28,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:28:28,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:28:28,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:28:28,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:28:28,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:28:28,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:28:28,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:28:28,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:28:28,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:28:28,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:28:28,594 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 02:28:28,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:28:28,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:28:28,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:28:28,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:28:28,965 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:28:28,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label01.c [2020-10-14 02:28:29,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1ca047f8/452f34ae4b0e4a7fa561851f2cdbdac8/FLAG929cf34f3 [2020-10-14 02:28:29,586 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:28:29,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label01.c [2020-10-14 02:28:29,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1ca047f8/452f34ae4b0e4a7fa561851f2cdbdac8/FLAG929cf34f3 [2020-10-14 02:28:29,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1ca047f8/452f34ae4b0e4a7fa561851f2cdbdac8 [2020-10-14 02:28:29,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:28:29,888 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:28:29,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:28:29,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:28:29,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:28:29,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:28:29" (1/1) ... [2020-10-14 02:28:29,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:29, skipping insertion in model container [2020-10-14 02:28:29,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:28:29" (1/1) ... [2020-10-14 02:28:29,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:28:29,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:28:30,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:28:30,511 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:28:30,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:28:30,687 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:28:30,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30 WrapperNode [2020-10-14 02:28:30,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:28:30,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:28:30,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:28:30,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:28:30,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... [2020-10-14 02:28:30,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... [2020-10-14 02:28:30,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... [2020-10-14 02:28:30,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... [2020-10-14 02:28:30,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... [2020-10-14 02:28:30,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... [2020-10-14 02:28:30,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... [2020-10-14 02:28:30,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:28:30,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:28:30,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:28:30,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:28:30,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:28:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:28:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:28:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:28:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:28:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:28:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:28:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:28:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:28:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:28:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:28:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:28:32,156 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:28:32,156 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:28:32,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:28:32 BoogieIcfgContainer [2020-10-14 02:28:32,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:28:32,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:28:32,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:28:32,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:28:32,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:28:29" (1/3) ... [2020-10-14 02:28:32,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bce28d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:28:32, skipping insertion in model container [2020-10-14 02:28:32,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:28:30" (2/3) ... [2020-10-14 02:28:32,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bce28d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:28:32, skipping insertion in model container [2020-10-14 02:28:32,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:28:32" (3/3) ... [2020-10-14 02:28:32,172 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label01.c [2020-10-14 02:28:32,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:28:32,194 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:28:32,209 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:28:32,238 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:28:32,238 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:28:32,238 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:28:32,238 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:28:32,239 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:28:32,239 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:28:32,239 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:28:32,239 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:28:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-14 02:28:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 02:28:32,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:28:32,278 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] [2020-10-14 02:28:32,279 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:28:32,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:28:32,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1584910874, now seen corresponding path program 1 times [2020-10-14 02:28:32,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:28:32,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343118960] [2020-10-14 02:28:32,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:28:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:32,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:32,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:32,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 02:28:32,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:32,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-14 02:28:32,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:32,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:28:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:28:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 02:28:32,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 02:28:33,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:28:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:33,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:33,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:28:33,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 02:28:33,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:33,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:28:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:28:33,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:33,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:28:33,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343118960] [2020-10-14 02:28:33,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:28:33,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 02:28:33,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619275470] [2020-10-14 02:28:33,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:28:33,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:28:33,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:28:33,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:28:33,123 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-10-14 02:28:35,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:28:35,264 INFO L93 Difference]: Finished difference Result 730 states and 1302 transitions. [2020-10-14 02:28:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 02:28:35,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-14 02:28:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:28:35,293 INFO L225 Difference]: With dead ends: 730 [2020-10-14 02:28:35,294 INFO L226 Difference]: Without dead ends: 447 [2020-10-14 02:28:35,304 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 [2020-10-14 02:28:35,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-14 02:28:35,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-10-14 02:28:35,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-10-14 02:28:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 648 transitions. [2020-10-14 02:28:35,400 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 648 transitions. Word has length 59 [2020-10-14 02:28:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:28:35,401 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 648 transitions. [2020-10-14 02:28:35,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:28:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 648 transitions. [2020-10-14 02:28:35,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 02:28:35,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:28:35,409 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] [2020-10-14 02:28:35,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:28:35,410 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:28:35,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:28:35,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1008578807, now seen corresponding path program 1 times [2020-10-14 02:28:35,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:28:35,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915273391] [2020-10-14 02:28:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:28:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:35,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:35,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:36,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:36,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 02:28:36,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:28:36,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-14 02:28:36,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:36,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:28:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 02:28:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 02:28:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 02:28:36,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:28:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:36,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:36,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:36,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:28:36,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:36,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 02:28:36,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:36,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:28:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:36,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:28:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 02:28:36,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:28:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:36,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:36,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:36,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 02:28:36,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:36,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 02:28:36,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:36,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:28:36,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:36,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 02:28:36,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:28:36,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915273391] [2020-10-14 02:28:36,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:28:36,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 02:28:36,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399257866] [2020-10-14 02:28:36,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 02:28:36,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:28:36,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 02:28:36,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:28:36,398 INFO L87 Difference]: Start difference. First operand 441 states and 648 transitions. Second operand 6 states. [2020-10-14 02:28:37,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:28:37,879 INFO L93 Difference]: Finished difference Result 1321 states and 1992 transitions. [2020-10-14 02:28:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:28:37,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2020-10-14 02:28:37,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:28:37,890 INFO L225 Difference]: With dead ends: 1321 [2020-10-14 02:28:37,890 INFO L226 Difference]: Without dead ends: 886 [2020-10-14 02:28:37,892 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 [2020-10-14 02:28:37,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-10-14 02:28:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 876. [2020-10-14 02:28:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2020-10-14 02:28:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1284 transitions. [2020-10-14 02:28:37,985 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1284 transitions. Word has length 138 [2020-10-14 02:28:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:28:37,986 INFO L479 AbstractCegarLoop]: Abstraction has 876 states and 1284 transitions. [2020-10-14 02:28:37,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 02:28:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1284 transitions. [2020-10-14 02:28:37,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-14 02:28:37,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:28:37,996 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] [2020-10-14 02:28:37,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:28:37,997 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:28:37,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:28:37,997 INFO L82 PathProgramCache]: Analyzing trace with hash -403350922, now seen corresponding path program 1 times [2020-10-14 02:28:37,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:28:37,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358715398] [2020-10-14 02:28:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:28:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:38,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:38,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:38,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:39,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:39,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 02:28:39,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:28:39,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1651 [2020-10-14 02:28:39,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:39,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:28:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-10-14 02:28:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 02:28:39,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:39,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:28:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:39,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:39,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:39,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:28:39,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:39,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 02:28:39,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:39,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:28:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:28:39,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:28:39,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:28:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:39,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:39,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:39,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 02:28:39,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 02:28:39,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:39,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:28:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 02:28:39,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:28:40,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358715398] [2020-10-14 02:28:40,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:28:40,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 02:28:40,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211692607] [2020-10-14 02:28:40,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 02:28:40,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:28:40,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 02:28:40,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:28:40,060 INFO L87 Difference]: Start difference. First operand 876 states and 1284 transitions. Second operand 6 states. [2020-10-14 02:28:41,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:28:41,651 INFO L93 Difference]: Finished difference Result 1323 states and 2006 transitions. [2020-10-14 02:28:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 02:28:41,652 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-10-14 02:28:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:28:41,661 INFO L225 Difference]: With dead ends: 1323 [2020-10-14 02:28:41,662 INFO L226 Difference]: Without dead ends: 1321 [2020-10-14 02:28:41,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:28:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2020-10-14 02:28:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 876. [2020-10-14 02:28:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2020-10-14 02:28:41,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1282 transitions. [2020-10-14 02:28:41,704 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1282 transitions. Word has length 171 [2020-10-14 02:28:41,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:28:41,705 INFO L479 AbstractCegarLoop]: Abstraction has 876 states and 1282 transitions. [2020-10-14 02:28:41,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 02:28:41,705 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1282 transitions. [2020-10-14 02:28:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-14 02:28:41,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:28:41,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:28:41,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:28:41,712 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:28:41,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:28:41,712 INFO L82 PathProgramCache]: Analyzing trace with hash 508594546, now seen corresponding path program 1 times [2020-10-14 02:28:41,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:28:41,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063135613] [2020-10-14 02:28:41,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:28:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:41,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:41,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:42,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:42,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:44,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:46,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:46,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-14 02:28:46,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:28:46,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 02:28:46,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:46,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:28:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 02:28:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 02:28:46,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:28:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:46,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:46,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:46,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:28:46,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:28:46,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:46,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:28:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:28:46,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:46,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:28:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:46,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:46,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:46,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 02:28:46,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:46,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 02:28:46,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:46,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:28:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 02:28:46,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:46,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 02:28:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:46,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:47,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:47,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:28:47,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:47,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 02:28:47,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:47,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:28:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:28:47,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:28:47,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:28:47,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063135613] [2020-10-14 02:28:47,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:28:47,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:28:47,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327396851] [2020-10-14 02:28:47,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:28:47,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:28:47,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:28:47,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:28:47,284 INFO L87 Difference]: Start difference. First operand 876 states and 1282 transitions. Second operand 7 states. [2020-10-14 02:28:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:28:49,243 INFO L93 Difference]: Finished difference Result 2555 states and 4086 transitions. [2020-10-14 02:28:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:28:49,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-10-14 02:28:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:28:49,261 INFO L225 Difference]: With dead ends: 2555 [2020-10-14 02:28:49,261 INFO L226 Difference]: Without dead ends: 1685 [2020-10-14 02:28:49,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:28:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2020-10-14 02:28:49,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1180. [2020-10-14 02:28:49,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-10-14 02:28:49,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1641 transitions. [2020-10-14 02:28:49,338 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1641 transitions. Word has length 257 [2020-10-14 02:28:49,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:28:49,339 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1641 transitions. [2020-10-14 02:28:49,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:28:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1641 transitions. [2020-10-14 02:28:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-14 02:28:49,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:28:49,346 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:28:49,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:28:49,347 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:28:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:28:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash -722012359, now seen corresponding path program 1 times [2020-10-14 02:28:49,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:28:49,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929025864] [2020-10-14 02:28:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:28:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:49,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:49,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:49,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:51,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:53,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:53,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-14 02:28:53,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:28:53,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3913 [2020-10-14 02:28:53,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:53,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:28:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-14 02:28:53,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 02:28:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:28:53,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:28:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:53,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:53,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:53,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:28:53,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 02:28:53,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:53,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:28:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:28:53,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:28:53,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:28:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:53,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:53,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:53,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 02:28:53,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:53,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 02:28:53,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:53,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:28:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:28:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 02:28:53,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:28:53,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 02:28:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:53,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:53,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:28:53,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:28:53,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:28:53,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 02:28:53,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:28:53,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:28:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:28:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:28:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:28:53,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:28:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:28:53,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929025864] [2020-10-14 02:28:53,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:28:53,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:28:53,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645630908] [2020-10-14 02:28:53,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:28:53,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:28:53,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:28:53,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:28:53,974 INFO L87 Difference]: Start difference. First operand 1180 states and 1641 transitions. Second operand 8 states. [2020-10-14 02:28:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:28:56,510 INFO L93 Difference]: Finished difference Result 3119 states and 4427 transitions. [2020-10-14 02:28:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 02:28:56,511 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 266 [2020-10-14 02:28:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:28:56,522 INFO L225 Difference]: With dead ends: 3119 [2020-10-14 02:28:56,522 INFO L226 Difference]: Without dead ends: 1945 [2020-10-14 02:28:56,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 02:28:56,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-10-14 02:28:56,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1927. [2020-10-14 02:28:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-10-14 02:28:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2402 transitions. [2020-10-14 02:28:56,595 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2402 transitions. Word has length 266 [2020-10-14 02:28:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:28:56,596 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2402 transitions. [2020-10-14 02:28:56,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:28:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2402 transitions. [2020-10-14 02:28:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-14 02:28:56,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:28:56,608 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, 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] [2020-10-14 02:28:56,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:28:56,609 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:28:56,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:28:56,609 INFO L82 PathProgramCache]: Analyzing trace with hash 425358530, now seen corresponding path program 1 times [2020-10-14 02:28:56,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:28:56,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028888926] [2020-10-14 02:28:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:28:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:28:56,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:56,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:56,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:57,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:28:59,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:01,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:01,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-14 02:29:01,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:29:01,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 02:29:01,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:01,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:01,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:01,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-14 02:29:01,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 02:29:01,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:01,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:29:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:01,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:01,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:01,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:29:01,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:29:01,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:01,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:01,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:01,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:01,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:01,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:29:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:01,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:01,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:01,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 02:29:01,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:01,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 02:29:01,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:01,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:01,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:01,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 02:29:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:01,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:01,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:01,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 02:29:01,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 02:29:01,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:01,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:29:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 02:29:01,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:01,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-14 02:29:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:01,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:02,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:02,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:29:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 02:29:02,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:02,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:29:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:29:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 307 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 02:29:02,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028888926] [2020-10-14 02:29:02,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:29:02,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:29:02,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551137635] [2020-10-14 02:29:02,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:29:02,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:29:02,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:29:02,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:29:02,304 INFO L87 Difference]: Start difference. First operand 1927 states and 2402 transitions. Second operand 7 states. [2020-10-14 02:29:03,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:29:03,960 INFO L93 Difference]: Finished difference Result 4325 states and 5574 transitions. [2020-10-14 02:29:03,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:29:03,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 337 [2020-10-14 02:29:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:29:03,970 INFO L225 Difference]: With dead ends: 4325 [2020-10-14 02:29:03,970 INFO L226 Difference]: Without dead ends: 1967 [2020-10-14 02:29:03,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:29:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2020-10-14 02:29:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1935. [2020-10-14 02:29:04,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1935 states. [2020-10-14 02:29:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2398 transitions. [2020-10-14 02:29:04,036 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2398 transitions. Word has length 337 [2020-10-14 02:29:04,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:29:04,036 INFO L479 AbstractCegarLoop]: Abstraction has 1935 states and 2398 transitions. [2020-10-14 02:29:04,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:29:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2398 transitions. [2020-10-14 02:29:04,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-14 02:29:04,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:29:04,047 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, 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] [2020-10-14 02:29:04,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:29:04,047 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:29:04,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:29:04,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1494807938, now seen corresponding path program 1 times [2020-10-14 02:29:04,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:29:04,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501337269] [2020-10-14 02:29:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:29:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:04,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:04,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:04,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:06,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:09,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:09,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-14 02:29:09,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:29:09,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 02:29:09,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:09,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:09,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:09,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-14 02:29:09,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 02:29:09,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:09,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:29:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:09,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:09,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:09,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:29:09,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:09,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:29:09,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:09,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:09,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:09,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:29:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:09,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:09,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:09,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 02:29:09,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:09,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 02:29:09,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:09,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:09,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 02:29:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:09,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:09,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 02:29:09,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:09,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 02:29:09,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:09,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:29:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 02:29:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:09,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-14 02:29:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:09,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:09,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:29:09,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:09,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 02:29:09,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:09,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:09,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:29:09,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:29:09,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 319 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-14 02:29:09,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501337269] [2020-10-14 02:29:09,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:29:09,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:29:09,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349676176] [2020-10-14 02:29:09,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:29:09,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:29:09,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:29:09,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:29:09,765 INFO L87 Difference]: Start difference. First operand 1935 states and 2398 transitions. Second operand 7 states. [2020-10-14 02:29:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:29:11,616 INFO L93 Difference]: Finished difference Result 4315 states and 5428 transitions. [2020-10-14 02:29:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:29:11,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-14 02:29:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:29:11,629 INFO L225 Difference]: With dead ends: 4315 [2020-10-14 02:29:11,629 INFO L226 Difference]: Without dead ends: 2386 [2020-10-14 02:29:11,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:29:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2020-10-14 02:29:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 2235. [2020-10-14 02:29:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-10-14 02:29:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2830 transitions. [2020-10-14 02:29:11,703 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2830 transitions. Word has length 349 [2020-10-14 02:29:11,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:29:11,703 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2830 transitions. [2020-10-14 02:29:11,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:29:11,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2830 transitions. [2020-10-14 02:29:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-10-14 02:29:11,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:29:11,715 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, 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] [2020-10-14 02:29:11,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:29:11,716 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:29:11,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:29:11,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1262658847, now seen corresponding path program 1 times [2020-10-14 02:29:11,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:29:11,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197388381] [2020-10-14 02:29:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:29:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:11,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:11,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:12,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:12,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:12,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:14,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:15,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:15,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-14 02:29:15,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 02:29:15,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4189 [2020-10-14 02:29:15,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:15,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 02:29:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 02:29:15,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:16,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:29:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:16,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:16,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:16,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:29:16,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:16,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:29:16,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:16,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:16,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:16,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:29:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:16,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:16,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 02:29:16,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 02:29:16,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:16,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:16,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:29:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 02:29:16,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:16,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 02:29:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:16,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:16,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:16,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 02:29:16,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 02:29:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:16,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:16,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:16,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:29:16,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:16,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 02:29:16,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:16,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 02:29:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 236 proven. 93 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 02:29:16,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197388381] [2020-10-14 02:29:16,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:29:16,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:29:16,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706568049] [2020-10-14 02:29:16,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:29:16,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:29:16,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:29:16,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:29:16,328 INFO L87 Difference]: Start difference. First operand 2235 states and 2830 transitions. Second operand 7 states. [2020-10-14 02:29:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:29:17,976 INFO L93 Difference]: Finished difference Result 4786 states and 6165 transitions. [2020-10-14 02:29:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:29:17,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 358 [2020-10-14 02:29:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:29:17,988 INFO L225 Difference]: With dead ends: 4786 [2020-10-14 02:29:17,988 INFO L226 Difference]: Without dead ends: 1822 [2020-10-14 02:29:17,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:29:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-10-14 02:29:18,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1784. [2020-10-14 02:29:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-14 02:29:18,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2153 transitions. [2020-10-14 02:29:18,049 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2153 transitions. Word has length 358 [2020-10-14 02:29:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:29:18,050 INFO L479 AbstractCegarLoop]: Abstraction has 1784 states and 2153 transitions. [2020-10-14 02:29:18,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:29:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2153 transitions. [2020-10-14 02:29:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2020-10-14 02:29:18,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:29:18,062 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:29:18,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:29:18,063 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:29:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:29:18,063 INFO L82 PathProgramCache]: Analyzing trace with hash -643148539, now seen corresponding path program 1 times [2020-10-14 02:29:18,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:29:18,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421658597] [2020-10-14 02:29:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:29:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:18,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:18,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:19,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:19,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:19,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 438 [2020-10-14 02:29:19,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:29:19,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1510 [2020-10-14 02:29:19,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:19,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-14 02:29:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 02:29:19,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:19,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:29:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:19,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:19,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:19,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:29:19,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:19,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:29:19,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:19,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:19,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:19,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:29:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:19,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:19,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:29:19,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 02:29:19,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:19,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:19,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:29:19,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 02:29:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:20,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:20,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:29:20,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:29:20,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:20,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:29:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 02:29:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:20,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 02:29:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:20,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:20,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:20,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:29:20,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:20,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 02:29:20,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:20,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:20,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:20,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:29:20,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 02:29:20,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 383 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-14 02:29:20,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421658597] [2020-10-14 02:29:20,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:29:20,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:29:20,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885942867] [2020-10-14 02:29:20,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:29:20,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:29:20,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:29:20,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:29:20,301 INFO L87 Difference]: Start difference. First operand 1784 states and 2153 transitions. Second operand 7 states. [2020-10-14 02:29:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:29:21,973 INFO L93 Difference]: Finished difference Result 3926 states and 5047 transitions. [2020-10-14 02:29:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:29:21,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 424 [2020-10-14 02:29:21,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:29:21,986 INFO L225 Difference]: With dead ends: 3926 [2020-10-14 02:29:21,986 INFO L226 Difference]: Without dead ends: 2148 [2020-10-14 02:29:21,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:29:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2020-10-14 02:29:22,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2084. [2020-10-14 02:29:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2020-10-14 02:29:22,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2526 transitions. [2020-10-14 02:29:22,053 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2526 transitions. Word has length 424 [2020-10-14 02:29:22,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:29:22,054 INFO L479 AbstractCegarLoop]: Abstraction has 2084 states and 2526 transitions. [2020-10-14 02:29:22,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:29:22,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2526 transitions. [2020-10-14 02:29:22,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-14 02:29:22,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:29:22,062 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:29:22,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:29:22,062 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:29:22,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:29:22,063 INFO L82 PathProgramCache]: Analyzing trace with hash 132743214, now seen corresponding path program 1 times [2020-10-14 02:29:22,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:29:22,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564163852] [2020-10-14 02:29:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:29:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:22,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:23,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:23,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 471 [2020-10-14 02:29:23,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:29:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-10-14 02:29:23,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:23,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:29:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 412 [2020-10-14 02:29:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 02:29:23,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:23,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:29:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:23,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:23,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:23,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:29:23,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:23,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:29:23,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:23,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:23,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:23,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:29:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:23,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:23,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:23,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:29:23,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 02:29:23,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:23,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:23,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:23,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:23,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 02:29:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:23,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:23,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:23,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 02:29:23,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:23,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 02:29:23,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:23,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:29:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:23,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:29:23,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:23,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-14 02:29:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:29:23,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:29:23,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:29:23,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:29:23,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:29:23,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 02:29:23,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:29:23,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:29:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:29:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:29:23,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 02:29:23,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:29:23,591 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 159 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-14 02:29:23,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564163852] [2020-10-14 02:29:23,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:29:23,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:29:23,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179056273] [2020-10-14 02:29:23,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:29:23,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:29:23,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:29:23,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:29:23,594 INFO L87 Difference]: Start difference. First operand 2084 states and 2526 transitions. Second operand 5 states. [2020-10-14 02:29:24,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:29:24,763 INFO L93 Difference]: Finished difference Result 2090 states and 2538 transitions. [2020-10-14 02:29:24,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:29:24,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 457 [2020-10-14 02:29:24,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:29:24,766 INFO L225 Difference]: With dead ends: 2090 [2020-10-14 02:29:24,766 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 02:29:24,771 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 [2020-10-14 02:29:24,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 02:29:24,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 02:29:24,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 02:29:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 02:29:24,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 457 [2020-10-14 02:29:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:29:24,773 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 02:29:24,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:29:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 02:29:24,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 02:29:24,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:29:24,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 02:29:25,546 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 92 [2020-10-14 02:29:26,131 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 92 [2020-10-14 02:29:26,464 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 25 [2020-10-14 02:29:26,729 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 19 [2020-10-14 02:29:26,964 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 19 [2020-10-14 02:29:26,967 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 02:29:26,968 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)|)) [2020-10-14 02:29:26,968 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 02:29:26,968 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-10-14 02:29:26,968 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-10-14 02:29:26,969 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-14 02:29:26,970 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-14 02:29:26,970 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-14 02:29:26,970 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-14 02:29:26,970 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-14 02:29:26,970 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-14 02:29:26,970 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-10-14 02:29:26,970 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-10-14 02:29:26,971 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-10-14 02:29:26,972 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-10-14 02:29:26,973 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-10-14 02:29:26,973 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-10-14 02:29:26,973 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-10-14 02:29:26,973 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-10-14 02:29:26,973 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,973 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,973 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-14 02:29:26,974 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,975 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-14 02:29:26,976 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,977 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-10-14 02:29:26,978 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,979 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-14 02:29:26,980 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,981 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-14 02:29:26,982 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,983 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-14 02:29:26,984 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-14 02:29:26,985 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-14 02:29:26,985 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-14 02:29:26,985 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-14 02:29:26,985 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-14 02:29:26,985 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-10-14 02:29:26,985 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-10-14 02:29:26,985 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)|))))) [2020-10-14 02:29:26,985 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,986 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-10-14 02:29:26,987 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,988 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-14 02:29:26,989 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,990 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-14 02:29:26,991 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-14 02:29:26,992 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-10-14 02:29:26,992 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-10-14 02:29:26,992 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-10-14 02:29:26,992 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 02:29:26,992 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= ~a19~0 9)) [2020-10-14 02:29:26,992 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 02:29:26,992 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 02:29:26,993 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (not (= 9 |old(~a19~0)|)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-14 02:29:26,993 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-10-14 02:29:26,993 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (<= 8 ~a19~0) (not (= 9 |old(~a19~0)|)) (<= (+ ~a1~0 551894) 0) (<= 1 ~a10~0)) [2020-10-14 02:29:26,993 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-10-14 02:29:26,993 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-10-14 02:29:26,993 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (<= 8 ~a19~0) (not (= 9 |old(~a19~0)|)) (<= (+ ~a1~0 551894) 0) (<= 1 ~a10~0)) [2020-10-14 02:29:26,993 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-10-14 02:29:27,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 02:29:27 BoogieIcfgContainer [2020-10-14 02:29:27,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 02:29:27,016 INFO L168 Benchmark]: Toolchain (without parser) took 57128.44 ms. Allocated memory was 147.3 MB in the beginning and 1.0 GB in the end (delta: 881.3 MB). Free memory was 102.3 MB in the beginning and 772.8 MB in the end (delta: -670.5 MB). Peak memory consumption was 900.4 MB. Max. memory is 7.1 GB. [2020-10-14 02:29:27,017 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 02:29:27,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.15 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 170.0 MB in the end (delta: -68.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-10-14 02:29:27,019 INFO L168 Benchmark]: Boogie Preprocessor took 137.86 ms. Allocated memory is still 205.5 MB. Free memory was 169.0 MB in the beginning and 164.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-14 02:29:27,020 INFO L168 Benchmark]: RCFGBuilder took 1337.18 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 164.9 MB in the beginning and 176.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-10-14 02:29:27,021 INFO L168 Benchmark]: TraceAbstraction took 54850.01 ms. Allocated memory was 236.5 MB in the beginning and 1.0 GB in the end (delta: 792.2 MB). Free memory was 174.7 MB in the beginning and 772.8 MB in the end (delta: -598.1 MB). Peak memory consumption was 883.7 MB. Max. memory is 7.1 GB. [2020-10-14 02:29:27,025 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.15 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 170.0 MB in the end (delta: -68.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.86 ms. Allocated memory is still 205.5 MB. Free memory was 169.0 MB in the beginning and 164.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1337.18 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 164.9 MB in the beginning and 176.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 54850.01 ms. Allocated memory was 236.5 MB in the beginning and 1.0 GB in the end (delta: 792.2 MB). Free memory was 174.7 MB in the beginning and 772.8 MB in the end (delta: -598.1 MB). Peak memory consumption was 883.7 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: (((!(\old(a10) <= 0) || 8 <= a19) || !(9 == \old(a19))) || a1 + 551894 <= 0) || 1 <= a10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 52.5s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 302 SDtfs, 4789 SDslu, 410 SDs, 0 SdLazy, 10030 SolverSat, 1631 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2235occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1269 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 100 PreInvPairs, 146 NumberOfFragments, 146 HoareAnnotationTreeSize, 100 FomulaSimplifications, 613609 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 24162 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 32.4s InterpolantComputationTime, 2816 NumberOfCodeBlocks, 2816 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2806 ConstructedInterpolants, 0 QuantifiedInterpolants, 1729296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 2571/2679 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...