/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:44:37,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:44:37,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:44:37,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:44:37,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:44:37,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:44:37,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:44:37,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:44:37,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:44:37,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:44:37,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:44:37,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:44:37,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:44:37,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:44:37,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:44:37,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:44:37,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:44:37,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:44:37,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:44:37,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:44:37,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:44:37,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:44:37,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:44:37,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:44:37,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:44:37,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:44:37,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:44:37,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:44:37,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:44:37,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:44:37,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:44:37,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:44:37,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:44:37,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:44:37,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:44:37,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:44:37,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:44:37,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:44:37,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:44:37,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:44:37,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:44:37,826 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:44:37,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:44:37,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:44:37,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:44:37,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:44:37,887 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:44:37,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:44:37,887 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:44:37,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:44:37,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:44:37,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:44:37,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:44:37,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:44:37,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:44:37,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:44:37,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:44:37,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:44:37,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:44:37,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:44:37,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:44:37,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:44:37,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:44:37,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:44:37,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:44:37,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:44:37,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:44:37,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:44:37,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:44:37,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:44:37,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:44:37,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:44:38,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:44:38,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:44:38,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:44:38,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:44:38,261 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:44:38,262 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label20.c [2020-10-14 22:44:38,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa8c6ee34/a17652cd59224e089309169ccb95dee2/FLAGa7d77e9aa [2020-10-14 22:44:39,071 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:44:39,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label20.c [2020-10-14 22:44:39,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa8c6ee34/a17652cd59224e089309169ccb95dee2/FLAGa7d77e9aa [2020-10-14 22:44:39,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa8c6ee34/a17652cd59224e089309169ccb95dee2 [2020-10-14 22:44:39,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:44:39,222 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:44:39,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:44:39,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:44:39,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:44:39,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:44:39" (1/1) ... [2020-10-14 22:44:39,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5d0024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:39, skipping insertion in model container [2020-10-14 22:44:39,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:44:39" (1/1) ... [2020-10-14 22:44:39,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:44:39,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:44:40,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:44:40,679 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:44:41,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:44:41,168 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:44:41,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41 WrapperNode [2020-10-14 22:44:41,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:44:41,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:44:41,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:44:41,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:44:41,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... [2020-10-14 22:44:41,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... [2020-10-14 22:44:41,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... [2020-10-14 22:44:41,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... [2020-10-14 22:44:41,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... [2020-10-14 22:44:41,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... [2020-10-14 22:44:41,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... [2020-10-14 22:44:41,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:44:41,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:44:41,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:44:41,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:44:41,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:44:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:44:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:44:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:44:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:44:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:44:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:44:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:44:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:44:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:44:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:44:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:44:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:44:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:44:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:44:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:44:47,572 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:44:47,573 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:44:47,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:44:47 BoogieIcfgContainer [2020-10-14 22:44:47,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:44:47,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:44:47,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:44:47,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:44:47,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:44:39" (1/3) ... [2020-10-14 22:44:47,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d5b01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:44:47, skipping insertion in model container [2020-10-14 22:44:47,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:44:41" (2/3) ... [2020-10-14 22:44:47,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d5b01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:44:47, skipping insertion in model container [2020-10-14 22:44:47,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:44:47" (3/3) ... [2020-10-14 22:44:47,599 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label20.c [2020-10-14 22:44:47,610 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:44:47,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:44:47,636 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:44:47,666 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:44:47,667 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:44:47,667 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:44:47,667 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:44:47,667 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:44:47,667 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:44:47,667 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:44:47,668 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:44:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:44:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-14 22:44:47,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:44:47,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:44:47,718 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:44:47,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:44:47,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1233530833, now seen corresponding path program 1 times [2020-10-14 22:44:47,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:44:47,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372028252] [2020-10-14 22:44:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:44:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:47,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:48,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:48,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 22:44:48,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:48,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-14 22:44:48,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:48,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:44:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:44:48,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 22:44:48,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:44:48,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:44:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:48,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:48,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:44:48,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:48,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:44:48,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:48,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:48,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:48,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:48,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:44:48,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:44:48,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372028252] [2020-10-14 22:44:48,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:44:48,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:44:48,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158243534] [2020-10-14 22:44:48,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:44:48,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:44:48,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:44:48,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:44:48,339 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:44:55,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:44:55,713 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:44:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:44:55,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-14 22:44:55,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:44:55,746 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:44:55,746 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:44:55,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:44:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:44:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:44:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:44:55,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-14 22:44:55,924 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 12 [2020-10-14 22:44:55,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:44:55,924 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-14 22:44:55,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:44:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-14 22:44:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 22:44:55,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:44:55,929 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:44:55,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:44:55,929 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:44:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:44:55,930 INFO L82 PathProgramCache]: Analyzing trace with hash 635731692, now seen corresponding path program 1 times [2020-10-14 22:44:55,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:44:55,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570125780] [2020-10-14 22:44:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:44:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:55,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:56,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:56,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:56,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:44:56,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:44:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-14 22:44:56,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:56,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:44:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:44:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:44:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:56,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:44:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:56,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:56,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:56,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:44:56,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:56,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:44:56,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:56,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:44:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:44:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:44:56,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:44:56,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:44:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:44:56,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:44:57,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:44:57,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:44:57,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:44:57,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 22:44:57,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:44:57,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:44:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:44:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:44:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 22:44:57,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:44:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:44:57,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570125780] [2020-10-14 22:44:57,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:44:57,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:44:57,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465743357] [2020-10-14 22:44:57,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:44:57,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:44:57,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:44:57,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:44:57,169 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-14 22:45:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:45:08,193 INFO L93 Difference]: Finished difference Result 4326 states and 6787 transitions. [2020-10-14 22:45:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:45:08,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-10-14 22:45:08,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:45:08,214 INFO L225 Difference]: With dead ends: 4326 [2020-10-14 22:45:08,214 INFO L226 Difference]: Without dead ends: 2907 [2020-10-14 22:45:08,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:45:08,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2020-10-14 22:45:08,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2863. [2020-10-14 22:45:08,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2863 states. [2020-10-14 22:45:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 3948 transitions. [2020-10-14 22:45:08,311 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 3948 transitions. Word has length 82 [2020-10-14 22:45:08,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:45:08,312 INFO L479 AbstractCegarLoop]: Abstraction has 2863 states and 3948 transitions. [2020-10-14 22:45:08,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:45:08,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 3948 transitions. [2020-10-14 22:45:08,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 22:45:08,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:45:08,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:45:08,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:45:08,317 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:45:08,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:45:08,317 INFO L82 PathProgramCache]: Analyzing trace with hash 652103125, now seen corresponding path program 1 times [2020-10-14 22:45:08,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:45:08,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547887494] [2020-10-14 22:45:08,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:45:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:09,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:09,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 22:45:09,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:45:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1115 [2020-10-14 22:45:09,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:09,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:45:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:45:09,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:45:09,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:09,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:45:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:09,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:09,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:45:09,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:45:09,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:09,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:45:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:45:09,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:09,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:45:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:09,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:09,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:09,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:45:09,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:09,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 22:45:09,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:09,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:45:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:45:09,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:45:09,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:45:09,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547887494] [2020-10-14 22:45:09,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:45:09,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:45:09,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882885454] [2020-10-14 22:45:09,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:45:09,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:45:09,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:45:09,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:45:09,979 INFO L87 Difference]: Start difference. First operand 2863 states and 3948 transitions. Second operand 7 states. [2020-10-14 22:45:18,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:45:18,582 INFO L93 Difference]: Finished difference Result 5142 states and 7190 transitions. [2020-10-14 22:45:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:45:18,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-14 22:45:18,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:45:18,607 INFO L225 Difference]: With dead ends: 5142 [2020-10-14 22:45:18,607 INFO L226 Difference]: Without dead ends: 3705 [2020-10-14 22:45:18,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:45:18,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2020-10-14 22:45:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3598. [2020-10-14 22:45:18,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3598 states. [2020-10-14 22:45:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4749 transitions. [2020-10-14 22:45:18,735 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4749 transitions. Word has length 109 [2020-10-14 22:45:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:45:18,736 INFO L479 AbstractCegarLoop]: Abstraction has 3598 states and 4749 transitions. [2020-10-14 22:45:18,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:45:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4749 transitions. [2020-10-14 22:45:18,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-14 22:45:18,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:45:18,748 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:45:18,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:45:18,749 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:45:18,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:45:18,749 INFO L82 PathProgramCache]: Analyzing trace with hash -966688955, now seen corresponding path program 1 times [2020-10-14 22:45:18,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:45:18,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965046878] [2020-10-14 22:45:18,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:45:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:18,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:18,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:19,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:19,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 22:45:19,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:45:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-10-14 22:45:19,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:19,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:45:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:45:19,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:45:19,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:45:19,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:45:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:19,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:19,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:19,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:45:19,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:19,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:45:19,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:19,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:45:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:45:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:19,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:45:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:20,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:20,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:20,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 22:45:20,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:20,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 22:45:20,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:20,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:20,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:45:20,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:45:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:45:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:20,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:45:20,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965046878] [2020-10-14 22:45:20,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:45:20,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:45:20,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936531143] [2020-10-14 22:45:20,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:45:20,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:45:20,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:45:20,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:45:20,301 INFO L87 Difference]: Start difference. First operand 3598 states and 4749 transitions. Second operand 8 states. [2020-10-14 22:45:34,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:45:34,338 INFO L93 Difference]: Finished difference Result 10316 states and 14562 transitions. [2020-10-14 22:45:34,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:45:34,339 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-10-14 22:45:34,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:45:34,375 INFO L225 Difference]: With dead ends: 10316 [2020-10-14 22:45:34,375 INFO L226 Difference]: Without dead ends: 6724 [2020-10-14 22:45:34,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 22:45:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6724 states. [2020-10-14 22:45:34,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6724 to 6533. [2020-10-14 22:45:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6533 states. [2020-10-14 22:45:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6533 states to 6533 states and 8148 transitions. [2020-10-14 22:45:34,575 INFO L78 Accepts]: Start accepts. Automaton has 6533 states and 8148 transitions. Word has length 117 [2020-10-14 22:45:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:45:34,578 INFO L479 AbstractCegarLoop]: Abstraction has 6533 states and 8148 transitions. [2020-10-14 22:45:34,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:45:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 6533 states and 8148 transitions. [2020-10-14 22:45:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-14 22:45:34,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:45:34,582 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:45:34,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:45:34,583 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:45:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:45:34,583 INFO L82 PathProgramCache]: Analyzing trace with hash 313353540, now seen corresponding path program 1 times [2020-10-14 22:45:34,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:45:34,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391109476] [2020-10-14 22:45:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:45:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:34,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:34,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:34,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-14 22:45:34,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:34,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-14 22:45:34,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:34,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:45:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:45:34,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 22:45:34,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:45:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:35,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:35,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:35,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:45:35,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:45:35,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:35,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:35,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:45:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:35,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:35,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:35,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:45:35,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:35,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 22:45:35,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:35,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:45:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:45:35,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:45:35,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391109476] [2020-10-14 22:45:35,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:45:35,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:45:35,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283999892] [2020-10-14 22:45:35,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:45:35,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:45:35,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:45:35,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:45:35,328 INFO L87 Difference]: Start difference. First operand 6533 states and 8148 transitions. Second operand 6 states. [2020-10-14 22:45:48,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:45:48,596 INFO L93 Difference]: Finished difference Result 16029 states and 21896 transitions. [2020-10-14 22:45:48,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:45:48,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2020-10-14 22:45:48,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:45:48,635 INFO L225 Difference]: With dead ends: 16029 [2020-10-14 22:45:48,635 INFO L226 Difference]: Without dead ends: 8742 [2020-10-14 22:45:48,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:45:48,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8742 states. [2020-10-14 22:45:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8742 to 8703. [2020-10-14 22:45:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8703 states. [2020-10-14 22:45:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8703 states to 8703 states and 10214 transitions. [2020-10-14 22:45:48,850 INFO L78 Accepts]: Start accepts. Automaton has 8703 states and 10214 transitions. Word has length 198 [2020-10-14 22:45:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:45:48,851 INFO L479 AbstractCegarLoop]: Abstraction has 8703 states and 10214 transitions. [2020-10-14 22:45:48,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:45:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 8703 states and 10214 transitions. [2020-10-14 22:45:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-10-14 22:45:48,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:45:48,867 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:45:48,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:45:48,868 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:45:48,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:45:48,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1673299432, now seen corresponding path program 1 times [2020-10-14 22:45:48,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:45:48,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436157288] [2020-10-14 22:45:48,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:45:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:49,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:49,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:51,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:54,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:54,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 496 [2020-10-14 22:45:54,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:45:54,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 22:45:54,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:54,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:45:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:45:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:45:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:54,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:45:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:54,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:54,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:54,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:45:54,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:54,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:45:54,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:54,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:54,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:45:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:45:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:45:54,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:54,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:45:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:54,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:54,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:54,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:45:54,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-14 22:45:54,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:54,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:45:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:45:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:45:54,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:45:55,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:45:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:55,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:55,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:55,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:45:55,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:45:55,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:55,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:45:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:45:55,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:45:55,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:45:56,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:45:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:56,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:56,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:56,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:45:56,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:45:56,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:56,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 22:45:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:56,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:45:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:45:56,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:45:56,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:45:56,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:45:56,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:45:56,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:45:56,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:45:56,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:45:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:45:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:45:56,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:45:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:45:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 15 proven. 151 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-14 22:45:56,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436157288] [2020-10-14 22:45:56,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:45:56,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:45:56,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146566034] [2020-10-14 22:45:56,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:45:56,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:45:56,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:45:56,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:45:56,729 INFO L87 Difference]: Start difference. First operand 8703 states and 10214 transitions. Second operand 9 states. [2020-10-14 22:46:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:46:04,493 INFO L93 Difference]: Finished difference Result 24887 states and 30120 transitions. [2020-10-14 22:46:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:46:04,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 480 [2020-10-14 22:46:04,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:46:04,571 INFO L225 Difference]: With dead ends: 24887 [2020-10-14 22:46:04,571 INFO L226 Difference]: Without dead ends: 16892 [2020-10-14 22:46:04,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:46:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16892 states. [2020-10-14 22:46:04,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16892 to 16799. [2020-10-14 22:46:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16799 states. [2020-10-14 22:46:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16799 states to 16799 states and 19456 transitions. [2020-10-14 22:46:04,989 INFO L78 Accepts]: Start accepts. Automaton has 16799 states and 19456 transitions. Word has length 480 [2020-10-14 22:46:04,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:46:04,990 INFO L479 AbstractCegarLoop]: Abstraction has 16799 states and 19456 transitions. [2020-10-14 22:46:04,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:46:04,990 INFO L276 IsEmpty]: Start isEmpty. Operand 16799 states and 19456 transitions. [2020-10-14 22:46:05,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2020-10-14 22:46:05,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:46:05,026 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:46:05,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:46:05,027 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:46:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:46:05,027 INFO L82 PathProgramCache]: Analyzing trace with hash 736958016, now seen corresponding path program 1 times [2020-10-14 22:46:05,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:46:05,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633082348] [2020-10-14 22:46:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:46:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:05,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:06,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:09,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:09,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1029 [2020-10-14 22:46:09,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:46:09,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3887 [2020-10-14 22:46:09,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:09,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:09,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:09,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:46:09,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:46:09,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:09,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:46:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:09,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:09,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:09,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:46:09,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:09,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:46:09,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:09,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:09,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:09,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:46:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:09,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:09,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:09,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:46:09,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:09,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 22:46:09,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:09,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:09,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:09,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:46:09,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:09,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:09,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:09,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:46:09,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:09,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:46:09,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:09,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:09,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:46:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:09,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:09,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:09,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:46:09,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:46:09,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:09,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:09,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:10,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:46:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:10,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:10,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:10,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:46:10,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 22:46:10,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:10,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:46:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:10,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:10,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:10,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:10,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:46:10,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:10,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:46:10,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:10,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:46:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:10,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:46:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:10,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:10,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:10,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:46:10,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:10,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:46:10,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:10,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:46:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:46:10,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:10,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-14 22:46:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:10,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:10,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:10,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:46:10,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:10,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:46:10,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:10,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:46:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:10,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 210 proven. 70 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-14 22:46:11,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633082348] [2020-10-14 22:46:11,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:46:11,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:46:11,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227281458] [2020-10-14 22:46:11,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:46:11,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:46:11,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:46:11,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:46:11,204 INFO L87 Difference]: Start difference. First operand 16799 states and 19456 transitions. Second operand 7 states. [2020-10-14 22:46:19,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:46:19,281 INFO L93 Difference]: Finished difference Result 44498 states and 53549 transitions. [2020-10-14 22:46:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:46:19,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1007 [2020-10-14 22:46:19,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:46:19,399 INFO L225 Difference]: With dead ends: 44498 [2020-10-14 22:46:19,400 INFO L226 Difference]: Without dead ends: 29117 [2020-10-14 22:46:19,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:46:19,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29117 states. [2020-10-14 22:46:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29117 to 29049. [2020-10-14 22:46:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29049 states. [2020-10-14 22:46:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29049 states to 29049 states and 34010 transitions. [2020-10-14 22:46:20,029 INFO L78 Accepts]: Start accepts. Automaton has 29049 states and 34010 transitions. Word has length 1007 [2020-10-14 22:46:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:46:20,032 INFO L479 AbstractCegarLoop]: Abstraction has 29049 states and 34010 transitions. [2020-10-14 22:46:20,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:46:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 29049 states and 34010 transitions. [2020-10-14 22:46:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2020-10-14 22:46:20,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:46:20,084 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:46:20,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:46:20,084 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:46:20,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:46:20,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1201622888, now seen corresponding path program 1 times [2020-10-14 22:46:20,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:46:20,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178337220] [2020-10-14 22:46:20,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:46:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:20,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:21,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:21,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:25,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1081 [2020-10-14 22:46:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:46:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 22:46:25,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:25,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:46:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 22:46:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:46:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:25,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:25,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:46:25,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:46:25,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:25,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:25,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:25,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:46:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:25,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:25,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:25,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:46:25,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:46:25,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:25,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:25,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:25,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:25,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:25,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:25,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:46:25,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:46:25,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:25,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:25,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:25,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:25,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:25,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:46:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:25,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:25,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:25,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:46:25,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:25,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:46:25,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:25,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:25,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:25,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:25,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:25,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:26,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:46:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:26,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:26,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:26,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:46:26,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:46:26,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:26,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:46:26,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:26,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:26,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:26,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:46:26,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:26,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:46:26,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:26,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:46:26,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:26,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:46:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:26,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:26,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:26,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:46:26,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:46:26,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:26,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:46:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:46:26,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-14 22:46:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:26,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:26,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:26,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:46:26,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:26,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:46:26,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:26,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:26,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:26,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:46:26,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:26,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:27,410 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 314 proven. 70 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-14 22:46:27,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178337220] [2020-10-14 22:46:27,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:46:27,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:46:27,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285078633] [2020-10-14 22:46:27,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:46:27,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:46:27,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:46:27,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:46:27,415 INFO L87 Difference]: Start difference. First operand 29049 states and 34010 transitions. Second operand 7 states. [2020-10-14 22:46:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:46:37,357 INFO L93 Difference]: Finished difference Result 71009 states and 85621 transitions. [2020-10-14 22:46:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:46:37,358 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1059 [2020-10-14 22:46:37,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:46:37,487 INFO L225 Difference]: With dead ends: 71009 [2020-10-14 22:46:37,488 INFO L226 Difference]: Without dead ends: 43378 [2020-10-14 22:46:37,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:46:37,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43378 states. [2020-10-14 22:46:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43378 to 42588. [2020-10-14 22:46:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42588 states. [2020-10-14 22:46:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42588 states to 42588 states and 49656 transitions. [2020-10-14 22:46:38,517 INFO L78 Accepts]: Start accepts. Automaton has 42588 states and 49656 transitions. Word has length 1059 [2020-10-14 22:46:38,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:46:38,519 INFO L479 AbstractCegarLoop]: Abstraction has 42588 states and 49656 transitions. [2020-10-14 22:46:38,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:46:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand 42588 states and 49656 transitions. [2020-10-14 22:46:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2020-10-14 22:46:38,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:46:38,539 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:46:38,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:46:38,540 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:46:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:46:38,541 INFO L82 PathProgramCache]: Analyzing trace with hash 529991736, now seen corresponding path program 1 times [2020-10-14 22:46:38,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:46:38,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107851491] [2020-10-14 22:46:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:46:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:38,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:43,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:43,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1169 [2020-10-14 22:46:43,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:46:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-14 22:46:43,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:43,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:46:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-14 22:46:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 22:46:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:46:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:43,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:43,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:43,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:46:43,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:46:43,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:43,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:43,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:43,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:46:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:43,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:44,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:46:44,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:44,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:46:44,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:44,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:44,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:44,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:44,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:44,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:46:44,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:44,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:46:44,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:44,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:44,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:44,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:44,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:46:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:44,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:44,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:46:44,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:44,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:46:44,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:44,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:44,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:44,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:44,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:44,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:44,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:46:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:44,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:44,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:46:44,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:46:44,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:44,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:44,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:44,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:44,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:46:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:44,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:44,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:46:44,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:44,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:46:44,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:44,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:46:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:46:44,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:44,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:46:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:44,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:44,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:46:44,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:44,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:46:44,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:44,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:46:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:46:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:46:44,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-14 22:46:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:44,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:44,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:44,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 22:46:44,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:46:44,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:46:44,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:44,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:44,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:44,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:46:44,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:46:44,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:46:44,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-14 22:46:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:44,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:45,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:45,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:46:45,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:46:45,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:46:45,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:45,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:45,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:46:45,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:46:45,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:46:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 531 proven. 4 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2020-10-14 22:46:47,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107851491] [2020-10-14 22:46:47,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:46:47,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:46:47,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083487478] [2020-10-14 22:46:47,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:46:47,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:46:47,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:46:47,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:46:47,124 INFO L87 Difference]: Start difference. First operand 42588 states and 49656 transitions. Second operand 7 states. [2020-10-14 22:46:55,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:46:55,475 INFO L93 Difference]: Finished difference Result 96575 states and 113075 transitions. [2020-10-14 22:46:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:46:55,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1145 [2020-10-14 22:46:55,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:46:55,637 INFO L225 Difference]: With dead ends: 96575 [2020-10-14 22:46:55,638 INFO L226 Difference]: Without dead ends: 55405 [2020-10-14 22:46:55,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:46:55,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55405 states. [2020-10-14 22:46:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55405 to 55356. [2020-10-14 22:46:56,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55356 states. [2020-10-14 22:46:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55356 states to 55356 states and 63638 transitions. [2020-10-14 22:46:56,954 INFO L78 Accepts]: Start accepts. Automaton has 55356 states and 63638 transitions. Word has length 1145 [2020-10-14 22:46:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:46:56,955 INFO L479 AbstractCegarLoop]: Abstraction has 55356 states and 63638 transitions. [2020-10-14 22:46:56,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:46:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 55356 states and 63638 transitions. [2020-10-14 22:46:56,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1151 [2020-10-14 22:46:56,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:46:56,975 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:46:56,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:46:56,976 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:46:56,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:46:56,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1878525540, now seen corresponding path program 1 times [2020-10-14 22:46:56,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:46:56,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214844794] [2020-10-14 22:46:56,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:46:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:46:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:57,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:46:59,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:46:59,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1174 [2020-10-14 22:46:59,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:46:59,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2745 [2020-10-14 22:46:59,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:46:59,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:46:59,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:46:59,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-14 22:46:59,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 22:46:59,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:00,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:47:00,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:00,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:47:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:47:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:47:00,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:00,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:47:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:47:00,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:47:00,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:00,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:00,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:47:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:47:00,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:47:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:47:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:47:00,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:47:00,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:00,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:47:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:47:00,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:47:00,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:00,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 22:47:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:47:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:47:00,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:47:00,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:47:00,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:00,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-14 22:47:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:00,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:00,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:00,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:47:00,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:47:00,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:00,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:47:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 308 proven. 70 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2020-10-14 22:47:01,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214844794] [2020-10-14 22:47:01,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:47:01,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:47:01,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879742145] [2020-10-14 22:47:01,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:01,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:01,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:01,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:01,508 INFO L87 Difference]: Start difference. First operand 55356 states and 63638 transitions. Second operand 7 states. [2020-10-14 22:47:11,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:11,796 INFO L93 Difference]: Finished difference Result 126287 states and 147737 transitions. [2020-10-14 22:47:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:47:11,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1150 [2020-10-14 22:47:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:11,959 INFO L225 Difference]: With dead ends: 126287 [2020-10-14 22:47:11,960 INFO L226 Difference]: Without dead ends: 72349 [2020-10-14 22:47:12,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:47:12,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72349 states. [2020-10-14 22:47:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72349 to 71631. [2020-10-14 22:47:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71631 states. [2020-10-14 22:47:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71631 states to 71631 states and 82090 transitions. [2020-10-14 22:47:14,658 INFO L78 Accepts]: Start accepts. Automaton has 71631 states and 82090 transitions. Word has length 1150 [2020-10-14 22:47:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:14,660 INFO L479 AbstractCegarLoop]: Abstraction has 71631 states and 82090 transitions. [2020-10-14 22:47:14,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 71631 states and 82090 transitions. [2020-10-14 22:47:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1172 [2020-10-14 22:47:14,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:14,696 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:14,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:47:14,697 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:14,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:14,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1703352429, now seen corresponding path program 1 times [2020-10-14 22:47:14,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:14,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311025559] [2020-10-14 22:47:14,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:15,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:15,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:17,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:17,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1195 [2020-10-14 22:47:17,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:47:17,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2480 [2020-10-14 22:47:17,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:17,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:47:17,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 22:47:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:17,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:17,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:17,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:17,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:17,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:47:17,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:17,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:17,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:17,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:17,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:17,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:18,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:47:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:18,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:18,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:18,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:47:18,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:18,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:47:18,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:18,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:18,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:18,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:47:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:18,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:18,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:18,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:47:18,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:47:18,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:18,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:18,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:18,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:18,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:47:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:18,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:18,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:18,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:18,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:47:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:18,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:18,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:18,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:47:18,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:47:18,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:18,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:18,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:18,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:47:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:18,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:18,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:18,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:47:18,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:18,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:47:18,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:18,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:18,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:18,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:47:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:18,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:18,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:47:18,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:18,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:47:18,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:18,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:18,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:47:18,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:18,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-14 22:47:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:18,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:18,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:18,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:47:18,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:18,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:47:18,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:18,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:47:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 312 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-14 22:47:20,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311025559] [2020-10-14 22:47:20,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:47:20,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:47:20,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109835692] [2020-10-14 22:47:20,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:20,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:20,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:20,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:20,226 INFO L87 Difference]: Start difference. First operand 71631 states and 82090 transitions. Second operand 7 states. [2020-10-14 22:47:32,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:32,379 INFO L93 Difference]: Finished difference Result 158813 states and 183597 transitions. [2020-10-14 22:47:32,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:47:32,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1171 [2020-10-14 22:47:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:32,611 INFO L225 Difference]: With dead ends: 158813 [2020-10-14 22:47:32,611 INFO L226 Difference]: Without dead ends: 88600 [2020-10-14 22:47:32,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:47:32,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88600 states. [2020-10-14 22:47:33,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88600 to 87889. [2020-10-14 22:47:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87889 states. [2020-10-14 22:47:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87889 states to 87889 states and 99450 transitions. [2020-10-14 22:47:33,814 INFO L78 Accepts]: Start accepts. Automaton has 87889 states and 99450 transitions. Word has length 1171 [2020-10-14 22:47:33,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:33,815 INFO L479 AbstractCegarLoop]: Abstraction has 87889 states and 99450 transitions. [2020-10-14 22:47:33,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 87889 states and 99450 transitions. [2020-10-14 22:47:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1227 [2020-10-14 22:47:34,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:34,056 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:34,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:47:34,057 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:34,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:34,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1271930837, now seen corresponding path program 1 times [2020-10-14 22:47:34,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:34,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991974572] [2020-10-14 22:47:34,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:34,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:34,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:36,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:39,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:39,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1252 [2020-10-14 22:47:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:47:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5352 [2020-10-14 22:47:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:39,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-14 22:47:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 22:47:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:39,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:47:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:39,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:39,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:39,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:47:39,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:39,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:47:39,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:39,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:39,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:39,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:47:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:39,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:39,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:39,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:39,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:47:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:39,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:39,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:39,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:39,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:47:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:39,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:39,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:47:39,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:47:39,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:39,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:40,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:47:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:40,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:40,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:40,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:47:40,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:40,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:47:40,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:40,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:40,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:47:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:40,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:40,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:40,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:40,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:47:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:40,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:40,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:47:40,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:40,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:47:40,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:40,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:47:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:47:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 22:47:40,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:40,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:47:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:40,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:40,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:47:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:47:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2020-10-14 22:47:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:40,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:40,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:40,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 22:47:40,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:47:40,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:40,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 22:47:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:40,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:47:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1151 [2020-10-14 22:47:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:40,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:40,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:47:40,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:47:40,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:47:40,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:47:40,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:47:40,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:47:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:47:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:47:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:47:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:47:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 283 proven. 143 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2020-10-14 22:47:41,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991974572] [2020-10-14 22:47:41,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:47:41,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:47:41,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522803938] [2020-10-14 22:47:41,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:47:41,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:47:41,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:47:41,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:47:41,120 INFO L87 Difference]: Start difference. First operand 87889 states and 99450 transitions. Second operand 7 states. [2020-10-14 22:47:54,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:47:54,125 INFO L93 Difference]: Finished difference Result 193448 states and 220663 transitions. [2020-10-14 22:47:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:47:54,126 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1226 [2020-10-14 22:47:54,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:47:54,353 INFO L225 Difference]: With dead ends: 193448 [2020-10-14 22:47:54,353 INFO L226 Difference]: Without dead ends: 106977 [2020-10-14 22:47:54,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:47:54,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106977 states. [2020-10-14 22:47:55,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106977 to 105560. [2020-10-14 22:47:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105560 states. [2020-10-14 22:47:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105560 states to 105560 states and 118844 transitions. [2020-10-14 22:47:55,801 INFO L78 Accepts]: Start accepts. Automaton has 105560 states and 118844 transitions. Word has length 1226 [2020-10-14 22:47:55,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:47:55,802 INFO L479 AbstractCegarLoop]: Abstraction has 105560 states and 118844 transitions. [2020-10-14 22:47:55,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:47:55,802 INFO L276 IsEmpty]: Start isEmpty. Operand 105560 states and 118844 transitions. [2020-10-14 22:47:55,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1331 [2020-10-14 22:47:55,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:47:55,825 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:47:55,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:47:55,825 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:47:55,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:47:55,826 INFO L82 PathProgramCache]: Analyzing trace with hash 739847170, now seen corresponding path program 1 times [2020-10-14 22:47:55,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:47:55,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426808599] [2020-10-14 22:47:55,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:47:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:47:56,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:47:56,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1354 [2020-10-14 22:48:00,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:48:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4477 [2020-10-14 22:48:00,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 22:48:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 233 [2020-10-14 22:48:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:00,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:00,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:00,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:48:00,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:00,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:00,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:48:00,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:00,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:48:00,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:00,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:00,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:00,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:48:00,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:00,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:48:00,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:00,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:00,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:00,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:00,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:48:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:00,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:00,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:00,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:48:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:01,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:01,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:01,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:01,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:01,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:01,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:48:01,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:01,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:48:01,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:01,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:01,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:01,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:01,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:48:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:01,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:01,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:48:01,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:48:01,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:01,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:01,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:01,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:48:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:01,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:01,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:01,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:48:01,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:01,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:48:01,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:01,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:48:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:01,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:48:01,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:01,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-14 22:48:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:01,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:01,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:01,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-14 22:48:01,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:01,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 22:48:01,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:01,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:48:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-10-14 22:48:01,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 742 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-14 22:48:02,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426808599] [2020-10-14 22:48:02,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:48:02,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:48:02,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249546142] [2020-10-14 22:48:02,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:48:02,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:48:02,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:48:02,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:48:02,894 INFO L87 Difference]: Start difference. First operand 105560 states and 118844 transitions. Second operand 7 states. [2020-10-14 22:48:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:48:12,960 INFO L93 Difference]: Finished difference Result 211117 states and 237753 transitions. [2020-10-14 22:48:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:48:12,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1330 [2020-10-14 22:48:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:48:13,185 INFO L225 Difference]: With dead ends: 211117 [2020-10-14 22:48:13,185 INFO L226 Difference]: Without dead ends: 106975 [2020-10-14 22:48:13,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:48:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106975 states. [2020-10-14 22:48:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106975 to 106973. [2020-10-14 22:48:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106973 states. [2020-10-14 22:48:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106973 states to 106973 states and 120259 transitions. [2020-10-14 22:48:14,439 INFO L78 Accepts]: Start accepts. Automaton has 106973 states and 120259 transitions. Word has length 1330 [2020-10-14 22:48:14,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:48:14,440 INFO L479 AbstractCegarLoop]: Abstraction has 106973 states and 120259 transitions. [2020-10-14 22:48:14,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:48:14,440 INFO L276 IsEmpty]: Start isEmpty. Operand 106973 states and 120259 transitions. [2020-10-14 22:48:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1331 [2020-10-14 22:48:14,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:48:14,458 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:48:14,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:48:14,458 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:48:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:48:14,459 INFO L82 PathProgramCache]: Analyzing trace with hash 2048945804, now seen corresponding path program 1 times [2020-10-14 22:48:14,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:48:14,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110099006] [2020-10-14 22:48:14,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:48:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:14,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:15,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1354 [2020-10-14 22:48:18,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:48:18,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3536 [2020-10-14 22:48:18,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:48:18,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1269 [2020-10-14 22:48:18,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 22:48:18,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:48:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:48:18,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:48:18,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:18,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:18,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:48:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:18,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:48:18,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:18,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:48:18,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:18,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:18,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:48:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:18,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:48:18,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:18,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:48:18,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:18,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:18,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:18,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:48:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:18,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:48:18,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:48:18,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:18,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:48:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:48:18,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:48:18,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:18,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:48:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:48:18,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:48:18,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:48:18,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:48:18,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:48:18,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:48:18,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:48:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:48:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:48:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:48:18,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:48:18,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 22:48:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:48:19,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking...