/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:02:05,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:02:05,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:02:05,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:02:05,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:02:05,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:02:05,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:02:05,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:02:05,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:02:05,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:02:05,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:02:05,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:02:05,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:02:05,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:02:05,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:02:05,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:02:05,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:02:05,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:02:05,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:02:05,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:02:05,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:02:05,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:02:05,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:02:05,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:02:05,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:02:05,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:02:05,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:02:05,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:02:05,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:02:05,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:02:05,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:02:05,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:02:05,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:02:05,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:02:05,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:02:05,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:02:05,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:02:05,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:02:05,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:02:05,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:02:05,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:02:05,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:02:05,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:02:05,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:02:05,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:02:05,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:02:05,622 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:02:05,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:02:05,622 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:02:05,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:02:05,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:02:05,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:02:05,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:02:05,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:02:05,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:02:05,623 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:02:05,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:02:05,624 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:02:05,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:02:05,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:02:05,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:02:05,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:02:05,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:02:05,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:02:05,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:02:05,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:02:05,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:02:05,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:02:05,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:02:05,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:02:05,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:02:05,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:02:05,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:02:06,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:02:06,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:02:06,009 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:02:06,009 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:02:06,010 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label34.c [2020-10-12 15:02:06,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b813135a/1555f4816f0c468b96d8c0a26a0a56b5/FLAG2c99a8ed1 [2020-10-12 15:02:06,806 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:02:06,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label34.c [2020-10-12 15:02:06,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b813135a/1555f4816f0c468b96d8c0a26a0a56b5/FLAG2c99a8ed1 [2020-10-12 15:02:06,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b813135a/1555f4816f0c468b96d8c0a26a0a56b5 [2020-10-12 15:02:06,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:02:06,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:02:06,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:02:06,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:02:06,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:02:06,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:02:06" (1/1) ... [2020-10-12 15:02:06,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29eb21d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:06, skipping insertion in model container [2020-10-12 15:02:06,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:02:06" (1/1) ... [2020-10-12 15:02:06,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:02:07,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:02:08,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:02:08,535 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:02:09,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:02:09,068 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:02:09,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09 WrapperNode [2020-10-12 15:02:09,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:02:09,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:02:09,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:02:09,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:02:09,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... [2020-10-12 15:02:09,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... [2020-10-12 15:02:09,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... [2020-10-12 15:02:09,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... [2020-10-12 15:02:09,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... [2020-10-12 15:02:09,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... [2020-10-12 15:02:09,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... [2020-10-12 15:02:09,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:02:09,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:02:09,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:02:09,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:02:09,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:02:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:02:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:02:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 15:02:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 15:02:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 15:02:09,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:02:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 15:02:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 15:02:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 15:02:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:02:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:02:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:02:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:02:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:02:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:02:15,462 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:02:15,464 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:02:15,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:02:15 BoogieIcfgContainer [2020-10-12 15:02:15,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:02:15,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:02:15,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:02:15,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:02:15,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:02:06" (1/3) ... [2020-10-12 15:02:15,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ef27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:02:15, skipping insertion in model container [2020-10-12 15:02:15,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:02:09" (2/3) ... [2020-10-12 15:02:15,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ef27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:02:15, skipping insertion in model container [2020-10-12 15:02:15,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:02:15" (3/3) ... [2020-10-12 15:02:15,494 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label34.c [2020-10-12 15:02:15,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:02:15,519 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:02:15,536 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:02:15,573 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:02:15,573 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:02:15,573 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:02:15,573 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:02:15,573 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:02:15,574 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:02:15,574 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:02:15,575 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:02:15,624 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 15:02:15,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 15:02:15,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:15,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:15,633 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:15,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:15,639 INFO L82 PathProgramCache]: Analyzing trace with hash -415244174, now seen corresponding path program 1 times [2020-10-12 15:02:15,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:15,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248491269] [2020-10-12 15:02:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:15,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:16,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:16,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 15:02:16,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-12 15:02:16,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:16,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:02:16,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 15:02:16,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:16,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:16,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:16,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:16,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:16,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 15:02:16,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:16,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:02:16,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:16,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248491269] [2020-10-12 15:02:16,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:16,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 15:02:16,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536968273] [2020-10-12 15:02:16,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:02:16,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:16,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:02:16,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:02:16,414 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 15:02:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:23,853 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-12 15:02:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:02:23,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-12 15:02:23,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:23,895 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 15:02:23,898 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 15:02:23,908 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 [2020-10-12 15:02:23,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 15:02:24,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-12 15:02:24,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 15:02:24,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-12 15:02:24,059 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 13 [2020-10-12 15:02:24,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:24,059 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-12 15:02:24,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:02:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-12 15:02:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 15:02:24,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:24,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:24,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:02:24,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:24,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:24,066 INFO L82 PathProgramCache]: Analyzing trace with hash -811627082, now seen corresponding path program 1 times [2020-10-12 15:02:24,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:24,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270783945] [2020-10-12 15:02:24,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:24,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:24,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:24,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:24,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 15:02:24,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:24,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 787 [2020-10-12 15:02:24,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:24,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:02:24,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:02:24,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:24,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:24,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:24,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:24,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:02:24,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:24,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:24,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:24,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:24,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:24,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:25,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:25,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:02:25,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:25,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-12 15:02:25,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:02:25,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:25,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270783945] [2020-10-12 15:02:25,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:25,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:02:25,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176938310] [2020-10-12 15:02:25,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:25,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:25,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:25,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:25,175 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 7 states. [2020-10-12 15:02:34,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:34,049 INFO L93 Difference]: Finished difference Result 4326 states and 7112 transitions. [2020-10-12 15:02:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:02:34,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-10-12 15:02:34,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:34,071 INFO L225 Difference]: With dead ends: 4326 [2020-10-12 15:02:34,071 INFO L226 Difference]: Without dead ends: 2907 [2020-10-12 15:02:34,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:02:34,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2020-10-12 15:02:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2872. [2020-10-12 15:02:34,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2872 states. [2020-10-12 15:02:34,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 4028 transitions. [2020-10-12 15:02:34,187 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 4028 transitions. Word has length 83 [2020-10-12 15:02:34,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:34,189 INFO L479 AbstractCegarLoop]: Abstraction has 2872 states and 4028 transitions. [2020-10-12 15:02:34,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:02:34,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 4028 transitions. [2020-10-12 15:02:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 15:02:34,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:34,195 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:34,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:02:34,196 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:34,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:34,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1856276731, now seen corresponding path program 1 times [2020-10-12 15:02:34,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:34,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996065292] [2020-10-12 15:02:34,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:34,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:34,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:34,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:34,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 15:02:34,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:34,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-10-12 15:02:34,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 15:02:34,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:02:34,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:34,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:34,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:34,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:34,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:02:34,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:34,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:34,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:34,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:34,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:02:34,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:34,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 15:02:34,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 15:02:34,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:35,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996065292] [2020-10-12 15:02:35,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:35,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:02:35,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132395297] [2020-10-12 15:02:35,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:02:35,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:35,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:02:35,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:02:35,019 INFO L87 Difference]: Start difference. First operand 2872 states and 4028 transitions. Second operand 7 states. [2020-10-12 15:02:42,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:42,696 INFO L93 Difference]: Finished difference Result 7253 states and 10055 transitions. [2020-10-12 15:02:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:02:42,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-12 15:02:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:42,721 INFO L225 Difference]: With dead ends: 7253 [2020-10-12 15:02:42,722 INFO L226 Difference]: Without dead ends: 4387 [2020-10-12 15:02:42,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:02:42,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2020-10-12 15:02:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4368. [2020-10-12 15:02:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4368 states. [2020-10-12 15:02:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 5825 transitions. [2020-10-12 15:02:42,869 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 5825 transitions. Word has length 84 [2020-10-12 15:02:42,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:42,870 INFO L479 AbstractCegarLoop]: Abstraction has 4368 states and 5825 transitions. [2020-10-12 15:02:42,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:02:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 5825 transitions. [2020-10-12 15:02:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 15:02:42,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:42,873 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:42,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:02:42,873 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:42,874 INFO L82 PathProgramCache]: Analyzing trace with hash -60898673, now seen corresponding path program 1 times [2020-10-12 15:02:42,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:42,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816819417] [2020-10-12 15:02:42,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:42,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:43,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:43,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 15:02:43,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:43,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-10-12 15:02:43,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:02:43,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:02:43,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:44,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:44,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:44,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:44,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:44,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:02:44,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:44,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:44,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:44,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:44,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:44,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:02:44,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:44,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-12 15:02:44,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:44,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 15:02:44,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:02:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:02:44,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816819417] [2020-10-12 15:02:44,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:02:44,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:02:44,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892707881] [2020-10-12 15:02:44,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:02:44,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:44,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:02:44,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:02:44,736 INFO L87 Difference]: Start difference. First operand 4368 states and 5825 transitions. Second operand 8 states. [2020-10-12 15:02:55,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:02:55,578 INFO L93 Difference]: Finished difference Result 12649 states and 17797 transitions. [2020-10-12 15:02:55,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:02:55,580 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-10-12 15:02:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:02:55,621 INFO L225 Difference]: With dead ends: 12649 [2020-10-12 15:02:55,622 INFO L226 Difference]: Without dead ends: 8287 [2020-10-12 15:02:55,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:02:55,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8287 states. [2020-10-12 15:02:55,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8287 to 7355. [2020-10-12 15:02:55,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7355 states. [2020-10-12 15:02:55,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7355 states to 7355 states and 9257 transitions. [2020-10-12 15:02:55,884 INFO L78 Accepts]: Start accepts. Automaton has 7355 states and 9257 transitions. Word has length 110 [2020-10-12 15:02:55,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:02:55,885 INFO L479 AbstractCegarLoop]: Abstraction has 7355 states and 9257 transitions. [2020-10-12 15:02:55,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:02:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7355 states and 9257 transitions. [2020-10-12 15:02:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-12 15:02:55,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:02:55,897 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:02:55,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:02:55,897 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:02:55,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:02:55,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1085093666, now seen corresponding path program 1 times [2020-10-12 15:02:55,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:02:55,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715999540] [2020-10-12 15:02:55,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:02:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:56,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:56,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:56,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-12 15:02:56,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:02:56,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 907 [2020-10-12 15:02:56,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:56,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:02:56,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:02:56,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-12 15:02:56,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:56,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:02:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:56,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:56,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:56,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:02:56,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:56,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:02:56,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:56,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:02:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:02:56,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:02:56,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:02:56,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:02:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:02:57,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:02:57,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:02:57,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:02:57,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:02:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-12 15:02:57,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:02:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:02:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:02:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 15:02:57,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:02:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:02:57,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715999540] [2020-10-12 15:02:57,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:02:57,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:02:57,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089610558] [2020-10-12 15:02:57,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:02:57,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:02:57,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:02:57,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:02:57,526 INFO L87 Difference]: Start difference. First operand 7355 states and 9257 transitions. Second operand 6 states. [2020-10-12 15:03:09,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:03:09,158 INFO L93 Difference]: Finished difference Result 18530 states and 23838 transitions. [2020-10-12 15:03:09,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:03:09,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2020-10-12 15:03:09,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:03:09,221 INFO L225 Difference]: With dead ends: 18530 [2020-10-12 15:03:09,222 INFO L226 Difference]: Without dead ends: 11181 [2020-10-12 15:03:09,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:03:09,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11181 states. [2020-10-12 15:03:09,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11181 to 10301. [2020-10-12 15:03:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10301 states. [2020-10-12 15:03:09,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 12666 transitions. [2020-10-12 15:03:09,540 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 12666 transitions. Word has length 199 [2020-10-12 15:03:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:03:09,542 INFO L479 AbstractCegarLoop]: Abstraction has 10301 states and 12666 transitions. [2020-10-12 15:03:09,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:03:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 12666 transitions. [2020-10-12 15:03:09,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-10-12 15:03:09,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:03:09,550 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:03:09,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:03:09,551 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:03:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:03:09,552 INFO L82 PathProgramCache]: Analyzing trace with hash 444712327, now seen corresponding path program 1 times [2020-10-12 15:03:09,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:03:09,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020065] [2020-10-12 15:03:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:03:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:09,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:09,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:10,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:13,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:13,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 408 [2020-10-12 15:03:13,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:03:13,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3404 [2020-10-12 15:03:13,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:13,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:03:13,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 320 [2020-10-12 15:03:13,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:03:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:13,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:03:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:13,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:13,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:03:13,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:13,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:03:13,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:13,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:13,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:13,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:13,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:03:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:13,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:13,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:13,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:03:13,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:03:13,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:13,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:13,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 15:03:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:13,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:13,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:13,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:03:13,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 15:03:13,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:03:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:03:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:13,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-12 15:03:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:13,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:13,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:13,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:03:13,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:13,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 15:03:13,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:03:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 15:03:13,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-12 15:03:13,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020065] [2020-10-12 15:03:13,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:03:13,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:03:13,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198757393] [2020-10-12 15:03:13,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:03:13,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:03:13,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:03:13,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:03:13,732 INFO L87 Difference]: Start difference. First operand 10301 states and 12666 transitions. Second operand 8 states. [2020-10-12 15:03:32,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:03:32,471 INFO L93 Difference]: Finished difference Result 28644 states and 36652 transitions. [2020-10-12 15:03:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 15:03:32,472 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2020-10-12 15:03:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:03:32,518 INFO L225 Difference]: With dead ends: 28644 [2020-10-12 15:03:32,519 INFO L226 Difference]: Without dead ends: 16014 [2020-10-12 15:03:32,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 15:03:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16014 states. [2020-10-12 15:03:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16014 to 14550. [2020-10-12 15:03:32,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14550 states. [2020-10-12 15:03:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14550 states to 14550 states and 16564 transitions. [2020-10-12 15:03:32,831 INFO L78 Accepts]: Start accepts. Automaton has 14550 states and 16564 transitions. Word has length 394 [2020-10-12 15:03:32,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:03:32,832 INFO L479 AbstractCegarLoop]: Abstraction has 14550 states and 16564 transitions. [2020-10-12 15:03:32,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:03:32,832 INFO L276 IsEmpty]: Start isEmpty. Operand 14550 states and 16564 transitions. [2020-10-12 15:03:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2020-10-12 15:03:32,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:03:32,845 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 15:03:32,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:03:32,846 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:03:32,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:03:32,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1323047488, now seen corresponding path program 1 times [2020-10-12 15:03:32,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:03:32,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139336738] [2020-10-12 15:03:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:03:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:33,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:33,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:35,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:35,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:37,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:37,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 515 [2020-10-12 15:03:37,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:03:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 15:03:37,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:03:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:03:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 15:03:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:38,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:03:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:38,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:38,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:38,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:03:38,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:38,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:03:38,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:38,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:03:38,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:03:38,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:38,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:03:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:38,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:38,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:38,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:03:38,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:38,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-10-12 15:03:38,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:38,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:03:38,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:38,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 15:03:38,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:39,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:39,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:03:39,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:39,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 15:03:39,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:39,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:03:39,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:39,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:03:39,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:39,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 15:03:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:39,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:39,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:03:39,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:03:39,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:39,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 15:03:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:39,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-12 15:03:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:39,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:39,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:39,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:03:39,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:39,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 15:03:39,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-12 15:03:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:39,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:03:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 18 proven. 169 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-12 15:03:40,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139336738] [2020-10-12 15:03:40,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:03:40,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:03:40,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766265721] [2020-10-12 15:03:40,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:03:40,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:03:40,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:03:40,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:03:40,139 INFO L87 Difference]: Start difference. First operand 14550 states and 16564 transitions. Second operand 8 states. [2020-10-12 15:03:50,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:03:50,845 INFO L93 Difference]: Finished difference Result 40790 states and 47966 transitions. [2020-10-12 15:03:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:03:50,846 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 499 [2020-10-12 15:03:50,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:03:50,927 INFO L225 Difference]: With dead ends: 40790 [2020-10-12 15:03:50,928 INFO L226 Difference]: Without dead ends: 26246 [2020-10-12 15:03:50,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-12 15:03:50,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26246 states. [2020-10-12 15:03:51,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26246 to 26141. [2020-10-12 15:03:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26141 states. [2020-10-12 15:03:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26141 states to 26141 states and 30117 transitions. [2020-10-12 15:03:51,506 INFO L78 Accepts]: Start accepts. Automaton has 26141 states and 30117 transitions. Word has length 499 [2020-10-12 15:03:51,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:03:51,507 INFO L479 AbstractCegarLoop]: Abstraction has 26141 states and 30117 transitions. [2020-10-12 15:03:51,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:03:51,508 INFO L276 IsEmpty]: Start isEmpty. Operand 26141 states and 30117 transitions. [2020-10-12 15:03:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2020-10-12 15:03:51,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:03:51,547 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:03:51,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:03:51,548 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:03:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:03:51,549 INFO L82 PathProgramCache]: Analyzing trace with hash 76410889, now seen corresponding path program 1 times [2020-10-12 15:03:51,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:03:51,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772072734] [2020-10-12 15:03:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:03:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:51,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:52,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:54,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:56,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:56,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1048 [2020-10-12 15:03:56,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:03:56,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-10-12 15:03:56,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:03:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-12 15:03:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 15:03:56,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:03:57,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:03:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:03:57,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:03:57,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:03:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:03:57,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 15:03:57,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:57,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:03:57,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:03:57,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:57,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:03:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:03:57,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:03:57,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:57,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:03:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:03:57,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:03:57,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:03:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:03:57,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:03:57,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:03:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:03:57,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:03:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:03:57,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:03:57,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:03:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:03:57,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 15:03:57,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:57,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:03:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:03:57,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:03:57,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:03:57,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:03:57,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:03:57,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:03:57,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:03:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:03:57,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:03:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 15:03:57,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:03:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 292 proven. 2 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2020-10-12 15:03:58,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772072734] [2020-10-12 15:03:58,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:03:58,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:03:58,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015312489] [2020-10-12 15:03:58,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:03:58,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:03:58,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:03:58,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:03:58,641 INFO L87 Difference]: Start difference. First operand 26141 states and 30117 transitions. Second operand 7 states. [2020-10-12 15:04:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:04:06,851 INFO L93 Difference]: Finished difference Result 61707 states and 72982 transitions. [2020-10-12 15:04:06,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:04:06,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1026 [2020-10-12 15:04:06,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:04:06,950 INFO L225 Difference]: With dead ends: 61707 [2020-10-12 15:04:06,950 INFO L226 Difference]: Without dead ends: 35572 [2020-10-12 15:04:06,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:04:07,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35572 states. [2020-10-12 15:04:08,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35572 to 34800. [2020-10-12 15:04:08,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34800 states. [2020-10-12 15:04:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34800 states to 34800 states and 40779 transitions. [2020-10-12 15:04:08,960 INFO L78 Accepts]: Start accepts. Automaton has 34800 states and 40779 transitions. Word has length 1026 [2020-10-12 15:04:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:04:08,962 INFO L479 AbstractCegarLoop]: Abstraction has 34800 states and 40779 transitions. [2020-10-12 15:04:08,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:04:08,962 INFO L276 IsEmpty]: Start isEmpty. Operand 34800 states and 40779 transitions. [2020-10-12 15:04:09,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2020-10-12 15:04:09,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:04:09,010 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:04:09,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:04:09,010 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:04:09,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:04:09,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1338538160, now seen corresponding path program 1 times [2020-10-12 15:04:09,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:04:09,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829830151] [2020-10-12 15:04:09,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:04:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:09,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:09,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:12,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:14,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:14,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1069 [2020-10-12 15:04:14,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:04:14,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 15:04:14,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:14,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:14,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 965 [2020-10-12 15:04:14,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 15:04:14,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:14,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:04:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:14,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:14,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:04:14,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:04:14,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:14,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:04:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:14,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:14,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:14,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:04:14,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:14,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 15:04:14,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:14,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:14,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:14,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:04:14,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:14,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:04:14,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:14,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:14,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:04:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:14,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:14,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:14,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:04:14,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:14,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:04:14,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:14,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:14,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:04:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:14,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:14,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:14,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:04:14,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:14,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:04:14,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:14,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:14,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:14,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:15,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:15,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:15,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:15,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:04:15,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:15,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:04:15,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:15,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:15,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:04:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:15,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:15,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:15,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:04:15,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:04:15,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 15:04:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:15,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2020-10-12 15:04:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:15,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:04:15,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:04:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:04:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 15:04:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:15,784 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 292 proven. 2 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2020-10-12 15:04:15,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829830151] [2020-10-12 15:04:15,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:04:15,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:04:15,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524597135] [2020-10-12 15:04:15,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:04:15,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:04:15,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:04:15,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:04:15,788 INFO L87 Difference]: Start difference. First operand 34800 states and 40779 transitions. Second operand 7 states. [2020-10-12 15:04:26,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:04:26,001 INFO L93 Difference]: Finished difference Result 78957 states and 94296 transitions. [2020-10-12 15:04:26,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:04:26,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1047 [2020-10-12 15:04:26,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:04:26,369 INFO L225 Difference]: With dead ends: 78957 [2020-10-12 15:04:26,370 INFO L226 Difference]: Without dead ends: 44163 [2020-10-12 15:04:26,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:04:26,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44163 states. [2020-10-12 15:04:27,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44163 to 44104. [2020-10-12 15:04:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44104 states. [2020-10-12 15:04:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44104 states to 44104 states and 51393 transitions. [2020-10-12 15:04:27,258 INFO L78 Accepts]: Start accepts. Automaton has 44104 states and 51393 transitions. Word has length 1047 [2020-10-12 15:04:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:04:27,260 INFO L479 AbstractCegarLoop]: Abstraction has 44104 states and 51393 transitions. [2020-10-12 15:04:27,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:04:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 44104 states and 51393 transitions. [2020-10-12 15:04:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2020-10-12 15:04:27,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:04:27,280 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:04:27,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:04:27,281 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:04:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:04:27,282 INFO L82 PathProgramCache]: Analyzing trace with hash -247554319, now seen corresponding path program 1 times [2020-10-12 15:04:27,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:04:27,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384583954] [2020-10-12 15:04:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:04:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:27,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:28,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:32,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:32,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1088 [2020-10-12 15:04:32,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:04:32,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-12 15:04:32,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1075 [2020-10-12 15:04:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:04:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:32,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:04:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:32,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:32,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:32,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:04:32,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:32,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:04:32,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:32,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:04:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:32,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:32,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:32,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:32,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:32,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:04:32,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 15:04:33,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:33,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:04:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:33,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:33,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:33,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:04:33,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:04:33,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:33,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:33,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:33,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:33,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:04:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:33,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:33,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:33,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:04:33,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:33,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 15:04:33,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:33,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:33,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:33,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:33,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:04:33,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:04:33,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:33,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:33,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:04:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:33,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:33,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:33,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:04:33,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:04:33,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:33,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:33,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2020-10-12 15:04:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:33,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:33,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:33,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 15:04:33,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:33,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 15:04:33,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:33,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:33,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:33,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:04:33,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2020-10-12 15:04:34,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384583954] [2020-10-12 15:04:34,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:04:34,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:04:34,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688336389] [2020-10-12 15:04:34,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:04:34,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:04:34,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:04:34,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:04:34,445 INFO L87 Difference]: Start difference. First operand 44104 states and 51393 transitions. Second operand 5 states. [2020-10-12 15:04:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:04:44,641 INFO L93 Difference]: Finished difference Result 88929 states and 104271 transitions. [2020-10-12 15:04:44,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:04:44,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1066 [2020-10-12 15:04:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:04:44,742 INFO L225 Difference]: With dead ends: 88929 [2020-10-12 15:04:44,743 INFO L226 Difference]: Without dead ends: 44831 [2020-10-12 15:04:44,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:04:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44831 states. [2020-10-12 15:04:45,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44831 to 44819. [2020-10-12 15:04:45,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44819 states. [2020-10-12 15:04:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44819 states to 44819 states and 51886 transitions. [2020-10-12 15:04:45,543 INFO L78 Accepts]: Start accepts. Automaton has 44819 states and 51886 transitions. Word has length 1066 [2020-10-12 15:04:45,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:04:45,545 INFO L479 AbstractCegarLoop]: Abstraction has 44819 states and 51886 transitions. [2020-10-12 15:04:45,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:04:45,545 INFO L276 IsEmpty]: Start isEmpty. Operand 44819 states and 51886 transitions. [2020-10-12 15:04:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2020-10-12 15:04:45,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:04:45,573 INFO L422 BasicCegarLoop]: trace histogram [6, 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, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:04:45,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:04:45,574 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:04:45,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:04:45,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1590762217, now seen corresponding path program 1 times [2020-10-12 15:04:45,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:04:45,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831573432] [2020-10-12 15:04:45,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:04:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:45,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:46,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:47,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:49,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:50,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:50,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1214 [2020-10-12 15:04:50,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:04:50,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 15:04:50,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:04:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1201 [2020-10-12 15:04:50,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:04:50,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:04:51,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:04:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:04:51,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:04:51,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:04:51,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:04:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:04:51,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-12 15:04:51,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:51,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:04:51,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:04:51,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:51,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:04:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:04:51,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:04:51,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:51,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:04:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:04:51,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 15:04:51,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:51,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:04:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:51,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:04:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:04:51,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:04:51,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:51,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:04:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 15:04:51,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 15:04:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:04:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:04:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:51,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1091 [2020-10-12 15:04:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:51,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:51,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:51,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 15:04:51,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:51,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:04:51,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 15:04:51,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2020-10-12 15:04:52,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831573432] [2020-10-12 15:04:52,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:04:52,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:04:52,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524820517] [2020-10-12 15:04:52,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:04:52,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:04:52,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:04:52,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:04:52,510 INFO L87 Difference]: Start difference. First operand 44819 states and 51886 transitions. Second operand 5 states. [2020-10-12 15:05:00,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:00,658 INFO L93 Difference]: Finished difference Result 98137 states and 114786 transitions. [2020-10-12 15:05:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:05:00,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1190 [2020-10-12 15:05:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:00,815 INFO L225 Difference]: With dead ends: 98137 [2020-10-12 15:05:00,816 INFO L226 Difference]: Without dead ends: 53324 [2020-10-12 15:05:00,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:05:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53324 states. [2020-10-12 15:05:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53324 to 52602. [2020-10-12 15:05:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52602 states. [2020-10-12 15:05:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52602 states to 52602 states and 61062 transitions. [2020-10-12 15:05:01,912 INFO L78 Accepts]: Start accepts. Automaton has 52602 states and 61062 transitions. Word has length 1190 [2020-10-12 15:05:01,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:01,913 INFO L479 AbstractCegarLoop]: Abstraction has 52602 states and 61062 transitions. [2020-10-12 15:05:01,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:05:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 52602 states and 61062 transitions. [2020-10-12 15:05:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2020-10-12 15:05:01,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:01,957 INFO L422 BasicCegarLoop]: trace histogram [6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:05:01,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:05:01,958 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:01,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:01,959 INFO L82 PathProgramCache]: Analyzing trace with hash 255382677, now seen corresponding path program 1 times [2020-10-12 15:05:01,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:01,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372115648] [2020-10-12 15:05:01,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:02,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:02,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1240 [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1075 [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-12 15:05:07,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:07,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:07,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:07,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:07,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:05:07,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:07,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:07,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:07,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:07,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:05:07,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:07,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:05:07,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:07,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:07,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:07,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:07,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:07,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:07,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:07,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:05:07,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:07,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:05:07,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:07,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:07,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:05:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:07,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:07,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:05:07,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:07,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:05:07,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:07,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:05:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:07,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:07,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:07,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:05:07,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:05:07,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:08,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:08,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:08,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:05:08,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:05:08,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:08,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:08,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:05:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:08,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:08,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:08,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:05:08,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:08,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:05:08,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:08,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:08,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:08,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:08,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:08,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2020-10-12 15:05:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:08,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:08,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:08,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 15:05:08,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:08,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 15:05:08,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:05:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:08,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2020-10-12 15:05:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:08,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:08,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 15:05:08,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 15:05:08,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:08,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:08,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:08,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 15:05:08,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 552 proven. 2 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2020-10-12 15:05:09,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372115648] [2020-10-12 15:05:09,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:05:09,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:05:09,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106073655] [2020-10-12 15:05:09,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:05:09,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:09,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:05:09,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:05:09,322 INFO L87 Difference]: Start difference. First operand 52602 states and 61062 transitions. Second operand 8 states. [2020-10-12 15:05:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:17,844 INFO L93 Difference]: Finished difference Result 123592 states and 146065 transitions. [2020-10-12 15:05:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:05:17,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1216 [2020-10-12 15:05:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:17,998 INFO L225 Difference]: With dead ends: 123592 [2020-10-12 15:05:17,999 INFO L226 Difference]: Without dead ends: 70996 [2020-10-12 15:05:18,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:05:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70996 states. [2020-10-12 15:05:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70996 to 70912. [2020-10-12 15:05:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70912 states. [2020-10-12 15:05:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70912 states to 70912 states and 82030 transitions. [2020-10-12 15:05:20,384 INFO L78 Accepts]: Start accepts. Automaton has 70912 states and 82030 transitions. Word has length 1216 [2020-10-12 15:05:20,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:20,385 INFO L479 AbstractCegarLoop]: Abstraction has 70912 states and 82030 transitions. [2020-10-12 15:05:20,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:05:20,385 INFO L276 IsEmpty]: Start isEmpty. Operand 70912 states and 82030 transitions. [2020-10-12 15:05:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2020-10-12 15:05:20,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:20,415 INFO L422 BasicCegarLoop]: trace histogram [6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:05:20,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:05:20,416 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:20,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:20,416 INFO L82 PathProgramCache]: Analyzing trace with hash 805410584, now seen corresponding path program 1 times [2020-10-12 15:05:20,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:20,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486705640] [2020-10-12 15:05:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:20,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:21,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:21,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:21,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:25,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:25,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1249 [2020-10-12 15:05:25,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:05:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-12 15:05:25,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:05:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 15:05:25,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:25,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:25,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:25,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:25,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:25,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:05:25,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:25,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:25,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:25,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:25,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:05:25,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 15:05:25,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:26,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:26,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:26,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:26,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:05:26,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:26,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 15:05:26,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:26,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:26,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:26,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:26,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:26,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:05:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:26,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:26,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:26,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:05:26,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:26,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:05:26,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:26,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:05:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:26,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:26,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:26,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:05:26,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:05:26,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:26,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:05:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:26,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:26,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:26,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:05:26,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:26,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:05:26,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:26,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:26,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:26,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:26,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:05:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:26,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:26,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:26,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:05:26,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:26,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:05:26,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:05:26,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:26,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:05:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:26,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:26,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:05:26,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 15:05:26,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:26,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 15:05:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:26,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 15:05:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:26,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:26,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:26,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 361 proven. 105 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2020-10-12 15:05:28,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486705640] [2020-10-12 15:05:28,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:05:28,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:05:28,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791472125] [2020-10-12 15:05:28,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:05:28,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:28,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:05:28,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:28,371 INFO L87 Difference]: Start difference. First operand 70912 states and 82030 transitions. Second operand 7 states. [2020-10-12 15:05:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:40,612 INFO L93 Difference]: Finished difference Result 159622 states and 186271 transitions. [2020-10-12 15:05:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:05:40,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1225 [2020-10-12 15:05:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:40,780 INFO L225 Difference]: With dead ends: 159622 [2020-10-12 15:05:40,780 INFO L226 Difference]: Without dead ends: 88716 [2020-10-12 15:05:40,849 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 [2020-10-12 15:05:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88716 states. [2020-10-12 15:05:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88716 to 87275. [2020-10-12 15:05:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87275 states. [2020-10-12 15:05:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87275 states to 87275 states and 99805 transitions. [2020-10-12 15:05:41,800 INFO L78 Accepts]: Start accepts. Automaton has 87275 states and 99805 transitions. Word has length 1225 [2020-10-12 15:05:41,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:41,801 INFO L479 AbstractCegarLoop]: Abstraction has 87275 states and 99805 transitions. [2020-10-12 15:05:41,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:05:41,801 INFO L276 IsEmpty]: Start isEmpty. Operand 87275 states and 99805 transitions. [2020-10-12 15:05:41,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1287 [2020-10-12 15:05:41,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:41,828 INFO L422 BasicCegarLoop]: trace histogram [6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:05:41,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:05:41,828 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:41,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:41,829 INFO L82 PathProgramCache]: Analyzing trace with hash 950500082, now seen corresponding path program 1 times [2020-10-12 15:05:41,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:41,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612252321] [2020-10-12 15:05:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:42,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:42,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:42,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking...