/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:42:57,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:42:57,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:42:57,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:42:57,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:42:57,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:42:57,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:42:57,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:42:57,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:42:57,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:42:57,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:42:57,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:42:57,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:42:57,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:42:57,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:42:57,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:42:57,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:42:57,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:42:57,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:42:57,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:42:57,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:42:57,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:42:57,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:42:57,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:42:57,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:42:57,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:42:57,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:42:57,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:42:57,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:42:57,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:42:57,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:42:57,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:42:57,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:42:57,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:42:57,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:42:57,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:42:57,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:42:57,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:42:57,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:42:57,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:42:57,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:42:57,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 03:42:57,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:42:57,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:42:57,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:42:57,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:42:57,362 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:42:57,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:42:57,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:42:57,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:42:57,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:42:57,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:42:57,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:42:57,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:42:57,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:42:57,363 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:42:57,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:42:57,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:42:57,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:42:57,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:42:57,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:42:57,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:42:57,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:42:57,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:42:57,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:42:57,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:42:57,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:42:57,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:42:57,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:42:57,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:42:57,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:42:57,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:42:57,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:42:57,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:42:57,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:42:57,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:42:57,701 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:42:57,702 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label16.c [2020-10-14 03:42:57,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb7ce06c2/0b7aabbd2f3e471192a67df61657a844/FLAG87fe92f52 [2020-10-14 03:42:58,534 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:42:58,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label16.c [2020-10-14 03:42:58,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb7ce06c2/0b7aabbd2f3e471192a67df61657a844/FLAG87fe92f52 [2020-10-14 03:42:58,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb7ce06c2/0b7aabbd2f3e471192a67df61657a844 [2020-10-14 03:42:58,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:42:58,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:42:58,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:42:58,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:42:58,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:42:58,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:58" (1/1) ... [2020-10-14 03:42:58,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfcebea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:58, skipping insertion in model container [2020-10-14 03:42:58,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:58" (1/1) ... [2020-10-14 03:42:58,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:42:58,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:42:59,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:42:59,845 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:43:00,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:43:00,117 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:43:00,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00 WrapperNode [2020-10-14 03:43:00,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:43:00,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:43:00,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:43:00,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:43:00,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... [2020-10-14 03:43:00,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... [2020-10-14 03:43:00,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... [2020-10-14 03:43:00,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... [2020-10-14 03:43:00,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... [2020-10-14 03:43:00,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... [2020-10-14 03:43:00,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... [2020-10-14 03:43:00,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:43:00,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:43:00,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:43:00,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:43:00,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:43:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:43:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:43:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:43:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:43:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:43:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:43:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:43:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:43:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:43:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:43:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:43:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:43:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:43:02,936 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:43:02,936 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:43:02,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:43:02 BoogieIcfgContainer [2020-10-14 03:43:02,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:43:02,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:43:02,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:43:02,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:43:02,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:42:58" (1/3) ... [2020-10-14 03:43:02,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609b1f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:43:02, skipping insertion in model container [2020-10-14 03:43:02,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:00" (2/3) ... [2020-10-14 03:43:02,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609b1f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:43:02, skipping insertion in model container [2020-10-14 03:43:02,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:43:02" (3/3) ... [2020-10-14 03:43:02,954 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label16.c [2020-10-14 03:43:02,965 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:43:02,974 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:43:02,990 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:43:03,020 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:43:03,020 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:43:03,020 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:43:03,020 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:43:03,021 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:43:03,021 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:43:03,021 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:43:03,021 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:43:03,059 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:43:03,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 03:43:03,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:03,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:03,073 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:03,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1899898085, now seen corresponding path program 1 times [2020-10-14 03:43:03,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:03,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721171780] [2020-10-14 03:43:03,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:03,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 03:43:03,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:03,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-14 03:43:03,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:43:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:43:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 03:43:03,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:43:03,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:03,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:03,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:03,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:43:03,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:43:03,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:43:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:43:03,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721171780] [2020-10-14 03:43:03,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:43:03,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:43:03,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889679256] [2020-10-14 03:43:03,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:43:03,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:04,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:43:04,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:43:04,019 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:43:07,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:07,723 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 03:43:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:43:07,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-14 03:43:07,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:07,749 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:43:07,749 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:43:07,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:43:07,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:43:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:43:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:43:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1035 transitions. [2020-10-14 03:43:07,898 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1035 transitions. Word has length 48 [2020-10-14 03:43:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:07,899 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1035 transitions. [2020-10-14 03:43:07,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:43:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1035 transitions. [2020-10-14 03:43:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 03:43:07,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:07,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:07,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:43:07,906 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:07,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:07,907 INFO L82 PathProgramCache]: Analyzing trace with hash 694062048, now seen corresponding path program 1 times [2020-10-14 03:43:07,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:07,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634565001] [2020-10-14 03:43:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:07,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:08,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:08,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:08,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:08,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:43:08,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:08,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-10-14 03:43:08,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:08,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:08,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:08,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 03:43:08,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 03:43:08,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:43:09,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:09,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:09,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:09,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:09,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:09,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:09,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:09,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:09,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:09,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:09,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:43:09,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:09,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:43:09,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:09,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:43:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:43:09,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634565001] [2020-10-14 03:43:09,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:09,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:43:09,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799184206] [2020-10-14 03:43:09,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:43:09,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:09,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:43:09,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:43:09,213 INFO L87 Difference]: Start difference. First operand 689 states and 1035 transitions. Second operand 5 states. [2020-10-14 03:43:12,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:12,367 INFO L93 Difference]: Finished difference Result 2063 states and 3131 transitions. [2020-10-14 03:43:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:43:12,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-14 03:43:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:12,378 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:43:12,379 INFO L226 Difference]: Without dead ends: 1380 [2020-10-14 03:43:12,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:43:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-14 03:43:12,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-14 03:43:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 03:43:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1939 transitions. [2020-10-14 03:43:12,436 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1939 transitions. Word has length 120 [2020-10-14 03:43:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:12,437 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1939 transitions. [2020-10-14 03:43:12,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:43:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1939 transitions. [2020-10-14 03:43:12,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-14 03:43:12,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:12,442 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:12,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:43:12,443 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:12,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:12,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1177689011, now seen corresponding path program 1 times [2020-10-14 03:43:12,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:12,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031655347] [2020-10-14 03:43:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:12,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:12,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:13,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 03:43:13,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:13,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1224 [2020-10-14 03:43:13,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:13,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:13,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:13,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-14 03:43:13,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 03:43:13,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:13,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:13,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:13,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:13,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:13,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:13,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:13,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:13,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:13,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:13,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:13,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:43:13,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:13,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:43:13,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:13,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:13,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 03:43:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:43:14,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031655347] [2020-10-14 03:43:14,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:14,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:43:14,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245294141] [2020-10-14 03:43:14,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:43:14,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:14,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:43:14,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:43:14,114 INFO L87 Difference]: Start difference. First operand 1376 states and 1939 transitions. Second operand 5 states. [2020-10-14 03:43:17,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:17,782 INFO L93 Difference]: Finished difference Result 3431 states and 5020 transitions. [2020-10-14 03:43:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:43:17,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-14 03:43:17,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:17,797 INFO L225 Difference]: With dead ends: 3431 [2020-10-14 03:43:17,798 INFO L226 Difference]: Without dead ends: 2061 [2020-10-14 03:43:17,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:43:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2020-10-14 03:43:17,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2057. [2020-10-14 03:43:17,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-10-14 03:43:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2744 transitions. [2020-10-14 03:43:17,862 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2744 transitions. Word has length 155 [2020-10-14 03:43:17,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:17,862 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 2744 transitions. [2020-10-14 03:43:17,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:43:17,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2744 transitions. [2020-10-14 03:43:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-14 03:43:17,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:17,869 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:43:17,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:43:17,869 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:17,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1235027034, now seen corresponding path program 1 times [2020-10-14 03:43:17,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:17,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889752424] [2020-10-14 03:43:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:17,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:18,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:18,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:22,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:22,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:22,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-14 03:43:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:43:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 03:43:22,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:22,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 03:43:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:43:22,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:22,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:22,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:22,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:22,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:22,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:22,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:22,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:22,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:23,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:23,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:23,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:23,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:43:23,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:43:23,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:23,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:43:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:23,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 03:43:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:23,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:23,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 03:43:23,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 03:43:23,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:23,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 03:43:23,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:43:23,349 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:43:23,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889752424] [2020-10-14 03:43:23,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:23,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:23,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462643329] [2020-10-14 03:43:23,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:23,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:23,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:23,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:23,354 INFO L87 Difference]: Start difference. First operand 2057 states and 2744 transitions. Second operand 7 states. [2020-10-14 03:43:27,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:27,228 INFO L93 Difference]: Finished difference Result 5841 states and 7951 transitions. [2020-10-14 03:43:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:43:27,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 207 [2020-10-14 03:43:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:27,256 INFO L225 Difference]: With dead ends: 5841 [2020-10-14 03:43:27,256 INFO L226 Difference]: Without dead ends: 3790 [2020-10-14 03:43:27,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:43:27,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3790 states. [2020-10-14 03:43:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3790 to 3109. [2020-10-14 03:43:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3109 states. [2020-10-14 03:43:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4122 transitions. [2020-10-14 03:43:27,372 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4122 transitions. Word has length 207 [2020-10-14 03:43:27,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:27,373 INFO L479 AbstractCegarLoop]: Abstraction has 3109 states and 4122 transitions. [2020-10-14 03:43:27,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4122 transitions. [2020-10-14 03:43:27,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 03:43:27,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:27,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:43:27,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:43:27,380 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:27,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1757763776, now seen corresponding path program 1 times [2020-10-14 03:43:27,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:27,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883235454] [2020-10-14 03:43:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:27,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:27,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:29,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-14 03:43:32,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:43:32,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4567 [2020-10-14 03:43:32,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:43:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:43:32,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:32,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:32,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:32,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:32,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:32,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:32,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:32,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:32,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:43:32,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:32,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 03:43:32,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:43:32,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:32,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:43:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:32,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:32,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 03:43:32,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:43:32,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:32,816 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:43:32,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883235454] [2020-10-14 03:43:32,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:32,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:32,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780150997] [2020-10-14 03:43:32,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:32,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:32,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:32,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:32,820 INFO L87 Difference]: Start difference. First operand 3109 states and 4122 transitions. Second operand 7 states. [2020-10-14 03:43:42,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:42,378 INFO L93 Difference]: Finished difference Result 9782 states and 13648 transitions. [2020-10-14 03:43:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:43:42,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-10-14 03:43:42,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:42,427 INFO L225 Difference]: With dead ends: 9782 [2020-10-14 03:43:42,427 INFO L226 Difference]: Without dead ends: 6679 [2020-10-14 03:43:42,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:42,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2020-10-14 03:43:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6597. [2020-10-14 03:43:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6597 states. [2020-10-14 03:43:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 8655 transitions. [2020-10-14 03:43:42,638 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 8655 transitions. Word has length 327 [2020-10-14 03:43:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:42,639 INFO L479 AbstractCegarLoop]: Abstraction has 6597 states and 8655 transitions. [2020-10-14 03:43:42,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 8655 transitions. [2020-10-14 03:43:42,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-14 03:43:42,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:42,652 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:43:42,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:43:42,653 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:42,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:42,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1800739332, now seen corresponding path program 1 times [2020-10-14 03:43:42,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:42,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366019152] [2020-10-14 03:43:42,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:42,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:42,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:43,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:45,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:45,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-14 03:43:45,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:45,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3020 [2020-10-14 03:43:45,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:45,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-14 03:43:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 03:43:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:45,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:45,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:45,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:45,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:45,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:45,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:45,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:45,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:45,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:45,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:45,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:45,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:43:45,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:43:45,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:45,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:45,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:43:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:46,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:46,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:46,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:46,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:43:46,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:46,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:43:46,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-14 03:43:46,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366019152] [2020-10-14 03:43:46,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:46,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:43:46,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806392667] [2020-10-14 03:43:46,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:43:46,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:46,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:43:46,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:43:46,416 INFO L87 Difference]: Start difference. First operand 6597 states and 8655 transitions. Second operand 5 states. [2020-10-14 03:43:50,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:50,684 INFO L93 Difference]: Finished difference Result 12833 states and 16811 transitions. [2020-10-14 03:43:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:43:50,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 345 [2020-10-14 03:43:50,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:50,718 INFO L225 Difference]: With dead ends: 12833 [2020-10-14 03:43:50,718 INFO L226 Difference]: Without dead ends: 6597 [2020-10-14 03:43:50,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:43:50,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6597 states. [2020-10-14 03:43:50,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6597 to 6597. [2020-10-14 03:43:50,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6597 states. [2020-10-14 03:43:50,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 7967 transitions. [2020-10-14 03:43:50,947 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 7967 transitions. Word has length 345 [2020-10-14 03:43:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:50,948 INFO L479 AbstractCegarLoop]: Abstraction has 6597 states and 7967 transitions. [2020-10-14 03:43:50,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:43:50,949 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 7967 transitions. [2020-10-14 03:43:50,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2020-10-14 03:43:50,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:50,968 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:50,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:43:50,968 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:50,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:50,969 INFO L82 PathProgramCache]: Analyzing trace with hash -440079417, now seen corresponding path program 1 times [2020-10-14 03:43:50,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:50,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024550696] [2020-10-14 03:43:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:51,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:51,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:52,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:52,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 519 [2020-10-14 03:43:56,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:43:56,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 03:43:56,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-14 03:43:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:43:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:56,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:56,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:56,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:43:56,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:43:56,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:43:56,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:56,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:56,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:43:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:56,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:43:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:43:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 03:43:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 03:43:56,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 03:43:56,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-14 03:43:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-10-14 03:43:57,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024550696] [2020-10-14 03:43:57,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:57,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:57,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545585331] [2020-10-14 03:43:57,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:57,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:57,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:57,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:57,085 INFO L87 Difference]: Start difference. First operand 6597 states and 7967 transitions. Second operand 7 states. [2020-10-14 03:44:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:01,900 INFO L93 Difference]: Finished difference Result 16638 states and 20283 transitions. [2020-10-14 03:44:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:44:01,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 505 [2020-10-14 03:44:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:01,941 INFO L225 Difference]: With dead ends: 16638 [2020-10-14 03:44:01,941 INFO L226 Difference]: Without dead ends: 9333 [2020-10-14 03:44:01,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:01,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9333 states. [2020-10-14 03:44:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9333 to 8972. [2020-10-14 03:44:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8972 states. [2020-10-14 03:44:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 9760 transitions. [2020-10-14 03:44:02,135 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 9760 transitions. Word has length 505 [2020-10-14 03:44:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:02,136 INFO L479 AbstractCegarLoop]: Abstraction has 8972 states and 9760 transitions. [2020-10-14 03:44:02,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:02,137 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 9760 transitions. [2020-10-14 03:44:02,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2020-10-14 03:44:02,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:02,164 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:02,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:44:02,164 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:02,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:02,165 INFO L82 PathProgramCache]: Analyzing trace with hash -981915350, now seen corresponding path program 1 times [2020-10-14 03:44:02,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:02,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700722299] [2020-10-14 03:44:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:02,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:02,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:02,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:06,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 669 [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 421 [2020-10-14 03:44:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 03:44:07,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:07,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:07,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:07,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:07,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:07,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:07,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:07,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:07,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:07,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:07,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:07,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:44:07,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:44:07,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:07,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:07,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:44:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:07,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:07,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:07,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:44:07,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:07,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:07,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:07,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 03:44:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:07,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:07,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:07,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:44:07,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:07,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:44:07,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:07,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:44:07,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:07,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2020-10-14 03:44:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:07,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:08,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:08,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:44:08,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:08,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 03:44:08,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:08,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 03:44:08,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:08,496 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 572 proven. 2 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-10-14 03:44:08,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700722299] [2020-10-14 03:44:08,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:08,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:44:08,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264949464] [2020-10-14 03:44:08,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:44:08,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:08,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:44:08,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:44:08,499 INFO L87 Difference]: Start difference. First operand 8972 states and 9760 transitions. Second operand 8 states. [2020-10-14 03:44:12,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:12,958 INFO L93 Difference]: Finished difference Result 19301 states and 21019 transitions. [2020-10-14 03:44:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:44:12,959 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 653 [2020-10-14 03:44:12,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:12,989 INFO L225 Difference]: With dead ends: 19301 [2020-10-14 03:44:12,990 INFO L226 Difference]: Without dead ends: 9671 [2020-10-14 03:44:13,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:44:13,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9671 states. [2020-10-14 03:44:13,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9671 to 8632. [2020-10-14 03:44:13,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8632 states. [2020-10-14 03:44:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 9254 transitions. [2020-10-14 03:44:13,178 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 9254 transitions. Word has length 653 [2020-10-14 03:44:13,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:13,180 INFO L479 AbstractCegarLoop]: Abstraction has 8632 states and 9254 transitions. [2020-10-14 03:44:13,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:44:13,180 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 9254 transitions. [2020-10-14 03:44:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2020-10-14 03:44:13,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:13,202 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:13,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:44:13,202 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:13,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:13,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1941337291, now seen corresponding path program 1 times [2020-10-14 03:44:13,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:13,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659033531] [2020-10-14 03:44:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:18,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 775 [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 421 [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:44:18,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:18,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:18,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:18,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:18,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:18,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:18,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:18,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:18,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:44:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:44:18,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:18,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:18,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 03:44:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:18,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:18,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:44:18,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:18,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:18,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:18,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:18,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:18,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-14 03:44:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:18,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:44:18,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:18,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:44:18,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:18,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:18,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:18,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:18,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:44:18,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:18,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2020-10-14 03:44:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:18,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:44:18,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:18,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 03:44:18,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:18,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:44:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:18,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2020-10-14 03:44:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:18,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:18,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:19,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 625 proven. 86 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-10-14 03:44:19,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659033531] [2020-10-14 03:44:19,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:19,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:19,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906844333] [2020-10-14 03:44:19,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:19,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:19,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:19,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:19,335 INFO L87 Difference]: Start difference. First operand 8632 states and 9254 transitions. Second operand 7 states. [2020-10-14 03:44:22,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:22,676 INFO L93 Difference]: Finished difference Result 20997 states and 22672 transitions. [2020-10-14 03:44:22,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:22,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 757 [2020-10-14 03:44:22,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:22,711 INFO L225 Difference]: With dead ends: 20997 [2020-10-14 03:44:22,712 INFO L226 Difference]: Without dead ends: 12379 [2020-10-14 03:44:22,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2020-10-14 03:44:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 10674. [2020-10-14 03:44:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10674 states. [2020-10-14 03:44:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10674 states to 10674 states and 11378 transitions. [2020-10-14 03:44:22,928 INFO L78 Accepts]: Start accepts. Automaton has 10674 states and 11378 transitions. Word has length 757 [2020-10-14 03:44:22,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:22,928 INFO L479 AbstractCegarLoop]: Abstraction has 10674 states and 11378 transitions. [2020-10-14 03:44:22,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:22,929 INFO L276 IsEmpty]: Start isEmpty. Operand 10674 states and 11378 transitions. [2020-10-14 03:44:22,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2020-10-14 03:44:22,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:22,956 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:44:22,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:44:22,956 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:22,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:22,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1676305828, now seen corresponding path program 1 times [2020-10-14 03:44:22,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:22,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902865874] [2020-10-14 03:44:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 827 [2020-10-14 03:44:28,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:44:28,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 03:44:28,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 342 [2020-10-14 03:44:28,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:44:28,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:28,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:28,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:44:28,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:28,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:44:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:28,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:28,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:44:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 03:44:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:44:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:28,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-10-14 03:44:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:44:28,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 03:44:28,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:44:28,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:29,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-14 03:44:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:29,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:29,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:29,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 03:44:29,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:44:29,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:29,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 03:44:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:29,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:29,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 501 proven. 159 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2020-10-14 03:44:29,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902865874] [2020-10-14 03:44:29,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:29,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:29,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548787488] [2020-10-14 03:44:29,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:29,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:29,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:29,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:29,953 INFO L87 Difference]: Start difference. First operand 10674 states and 11378 transitions. Second operand 7 states. [2020-10-14 03:44:33,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:33,514 INFO L93 Difference]: Finished difference Result 22379 states and 23853 transitions. [2020-10-14 03:44:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:44:33,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 811 [2020-10-14 03:44:33,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:33,567 INFO L225 Difference]: With dead ends: 22379 [2020-10-14 03:44:33,567 INFO L226 Difference]: Without dead ends: 11370 [2020-10-14 03:44:33,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:33,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11370 states. [2020-10-14 03:44:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 11352. [2020-10-14 03:44:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11352 states. [2020-10-14 03:44:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11352 states to 11352 states and 12077 transitions. [2020-10-14 03:44:33,810 INFO L78 Accepts]: Start accepts. Automaton has 11352 states and 12077 transitions. Word has length 811 [2020-10-14 03:44:33,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:33,811 INFO L479 AbstractCegarLoop]: Abstraction has 11352 states and 12077 transitions. [2020-10-14 03:44:33,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:33,811 INFO L276 IsEmpty]: Start isEmpty. Operand 11352 states and 12077 transitions. [2020-10-14 03:44:33,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2020-10-14 03:44:33,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:33,844 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:33,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:44:33,845 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:33,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:33,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1185869520, now seen corresponding path program 1 times [2020-10-14 03:44:33,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:33,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815123739] [2020-10-14 03:44:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:33,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:35,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:38,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:38,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1008 [2020-10-14 03:44:38,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:38,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 03:44:38,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:38,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:38,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:38,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-14 03:44:38,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:44:38,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:39,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:39,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:44:39,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:44:39,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:44:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-14 03:44:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:44:39,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 03:44:39,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:44:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2020-10-14 03:44:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:44:39,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:39,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:44:39,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:44:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:44:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2020-10-14 03:44:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:40,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:44:40,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:44:40,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:44:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:40,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1494 backedges. 424 proven. 431 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2020-10-14 03:44:41,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815123739] [2020-10-14 03:44:41,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:41,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:44:41,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145709976] [2020-10-14 03:44:41,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:44:41,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:41,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:44:41,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:44:41,273 INFO L87 Difference]: Start difference. First operand 11352 states and 12077 transitions. Second operand 8 states. [2020-10-14 03:44:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:45,191 INFO L93 Difference]: Finished difference Result 23740 states and 25334 transitions. [2020-10-14 03:44:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:45,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 988 [2020-10-14 03:44:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:45,226 INFO L225 Difference]: With dead ends: 23740 [2020-10-14 03:44:45,227 INFO L226 Difference]: Without dead ends: 12052 [2020-10-14 03:44:45,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:44:45,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12052 states. [2020-10-14 03:44:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12052 to 12040. [2020-10-14 03:44:45,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12040 states. [2020-10-14 03:44:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12040 states to 12040 states and 12796 transitions. [2020-10-14 03:44:45,442 INFO L78 Accepts]: Start accepts. Automaton has 12040 states and 12796 transitions. Word has length 988 [2020-10-14 03:44:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:45,443 INFO L479 AbstractCegarLoop]: Abstraction has 12040 states and 12796 transitions. [2020-10-14 03:44:45,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:44:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 12040 states and 12796 transitions. [2020-10-14 03:44:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2020-10-14 03:44:45,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:45,484 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:45,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:44:45,484 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:45,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:45,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1013417232, now seen corresponding path program 1 times [2020-10-14 03:44:45,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:45,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401607547] [2020-10-14 03:44:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:45,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:45,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:45,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:45,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1093 [2020-10-14 03:44:50,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:50,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 03:44:50,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:50,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 481 [2020-10-14 03:44:50,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:44:50,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:50,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:50,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:50,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:44:50,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:44:50,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:44:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:44:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:44:50,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-14 03:44:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:50,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:50,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:44:50,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:51,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2020-10-14 03:44:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:51,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:51,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:44:51,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:51,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:44:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:51,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:51,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:51,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:44:51,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:51,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:44:51,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:51,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:44:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:51,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:51,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 860 [2020-10-14 03:44:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:51,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:51,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:51,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:44:51,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:44:51,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:51,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:44:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:52,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2057 backedges. 738 proven. 281 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2020-10-14 03:44:52,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401607547] [2020-10-14 03:44:52,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:52,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:52,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456985614] [2020-10-14 03:44:52,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:52,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:52,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:52,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:52,439 INFO L87 Difference]: Start difference. First operand 12040 states and 12796 transitions. Second operand 7 states. [2020-10-14 03:44:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:56,742 INFO L93 Difference]: Finished difference Result 26469 states and 28272 transitions. [2020-10-14 03:44:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:56,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1073 [2020-10-14 03:44:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:56,774 INFO L225 Difference]: With dead ends: 26469 [2020-10-14 03:44:56,775 INFO L226 Difference]: Without dead ends: 14435 [2020-10-14 03:44:56,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:56,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2020-10-14 03:44:56,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 14078. [2020-10-14 03:44:56,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14078 states. [2020-10-14 03:44:57,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14078 states to 14078 states and 15044 transitions. [2020-10-14 03:44:57,003 INFO L78 Accepts]: Start accepts. Automaton has 14078 states and 15044 transitions. Word has length 1073 [2020-10-14 03:44:57,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:57,004 INFO L479 AbstractCegarLoop]: Abstraction has 14078 states and 15044 transitions. [2020-10-14 03:44:57,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 14078 states and 15044 transitions. [2020-10-14 03:44:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1089 [2020-10-14 03:44:57,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:57,045 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:57,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:44:57,046 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:57,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:57,047 INFO L82 PathProgramCache]: Analyzing trace with hash -499659234, now seen corresponding path program 1 times [2020-10-14 03:44:57,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:57,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726935702] [2020-10-14 03:44:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:57,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:57,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:57,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:57,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1106 [2020-10-14 03:45:02,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:02,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 03:45:02,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-10-14 03:45:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:45:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:02,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:02,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:45:02,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:45:02,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:02,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:02,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:45:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:45:02,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:45:02,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:45:02,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-14 03:45:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:02,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:02,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:45:02,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:02,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 03:45:02,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:02,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:45:02,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2020-10-14 03:45:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:02,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:03,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:45:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:03,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:03,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 762 [2020-10-14 03:45:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:03,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:03,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:03,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 03:45:03,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:45:03,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:03,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 03:45:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1712 backedges. 425 proven. 545 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2020-10-14 03:45:04,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726935702] [2020-10-14 03:45:04,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:04,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:45:04,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499060351] [2020-10-14 03:45:04,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:45:04,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:04,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:45:04,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:45:04,080 INFO L87 Difference]: Start difference. First operand 14078 states and 15044 transitions. Second operand 8 states. [2020-10-14 03:45:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:08,553 INFO L93 Difference]: Finished difference Result 30859 states and 33124 transitions. [2020-10-14 03:45:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:45:08,554 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1088 [2020-10-14 03:45:08,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:08,589 INFO L225 Difference]: With dead ends: 30859 [2020-10-14 03:45:08,589 INFO L226 Difference]: Without dead ends: 16787 [2020-10-14 03:45:08,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16787 states. [2020-10-14 03:45:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16787 to 16438. [2020-10-14 03:45:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16438 states. [2020-10-14 03:45:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16438 states to 16438 states and 17355 transitions. [2020-10-14 03:45:08,865 INFO L78 Accepts]: Start accepts. Automaton has 16438 states and 17355 transitions. Word has length 1088 [2020-10-14 03:45:08,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:08,866 INFO L479 AbstractCegarLoop]: Abstraction has 16438 states and 17355 transitions. [2020-10-14 03:45:08,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:45:08,867 INFO L276 IsEmpty]: Start isEmpty. Operand 16438 states and 17355 transitions. [2020-10-14 03:45:08,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2020-10-14 03:45:08,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:08,910 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:08,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:45:08,910 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:08,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:08,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1583162193, now seen corresponding path program 1 times [2020-10-14 03:45:08,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:08,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848989337] [2020-10-14 03:45:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:09,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1125 [2020-10-14 03:45:14,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:14,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-14 03:45:14,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:14,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 514 [2020-10-14 03:45:14,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:45:14,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:14,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:14,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:45:14,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:45:14,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:45:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:45:14,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:45:14,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-14 03:45:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 03:45:14,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:14,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-10-14 03:45:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:14,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:15,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:45:15,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-14 03:45:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:15,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:15,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:15,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 03:45:15,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:45:15,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:15,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 03:45:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1843 backedges. 718 proven. 272 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2020-10-14 03:45:16,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848989337] [2020-10-14 03:45:16,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:16,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:16,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909329302] [2020-10-14 03:45:16,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:16,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:16,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:16,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:16,162 INFO L87 Difference]: Start difference. First operand 16438 states and 17355 transitions. Second operand 7 states. [2020-10-14 03:45:20,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:20,006 INFO L93 Difference]: Finished difference Result 33562 states and 35431 transitions. [2020-10-14 03:45:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:45:20,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1107 [2020-10-14 03:45:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:20,050 INFO L225 Difference]: With dead ends: 33562 [2020-10-14 03:45:20,050 INFO L226 Difference]: Without dead ends: 17130 [2020-10-14 03:45:20,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:45:20,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17130 states. [2020-10-14 03:45:20,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17130 to 16440. [2020-10-14 03:45:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16440 states. [2020-10-14 03:45:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16440 states to 16440 states and 17349 transitions. [2020-10-14 03:45:20,349 INFO L78 Accepts]: Start accepts. Automaton has 16440 states and 17349 transitions. Word has length 1107 [2020-10-14 03:45:20,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:20,350 INFO L479 AbstractCegarLoop]: Abstraction has 16440 states and 17349 transitions. [2020-10-14 03:45:20,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:20,351 INFO L276 IsEmpty]: Start isEmpty. Operand 16440 states and 17349 transitions. [2020-10-14 03:45:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1196 [2020-10-14 03:45:20,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:20,384 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:20,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:45:20,384 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:20,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:20,385 INFO L82 PathProgramCache]: Analyzing trace with hash -51160591, now seen corresponding path program 1 times [2020-10-14 03:45:20,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:20,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034399873] [2020-10-14 03:45:20,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:20,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:20,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:20,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:20,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1213 [2020-10-14 03:45:25,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:25,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 03:45:25,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 324 [2020-10-14 03:45:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:45:25,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:25,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:25,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:25,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 03:45:25,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:45:25,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 03:45:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 03:45:25,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:45:25,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 03:45:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-14 03:45:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:45:26,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 03:45:26,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:45:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2020-10-14 03:45:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:26,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 869 [2020-10-14 03:45:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:26,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 03:45:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:26,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2118 backedges. 532 proven. 545 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2020-10-14 03:45:27,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034399873] [2020-10-14 03:45:27,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:27,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:45:27,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3713003] [2020-10-14 03:45:27,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:45:27,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:27,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:45:27,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:45:27,354 INFO L87 Difference]: Start difference. First operand 16440 states and 17349 transitions. Second operand 8 states. [2020-10-14 03:45:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:30,602 INFO L93 Difference]: Finished difference Result 35947 states and 38134 transitions. [2020-10-14 03:45:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:45:30,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1195 [2020-10-14 03:45:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:30,643 INFO L225 Difference]: With dead ends: 35947 [2020-10-14 03:45:30,644 INFO L226 Difference]: Without dead ends: 19513 [2020-10-14 03:45:30,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:45:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19513 states. [2020-10-14 03:45:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19513 to 19134. [2020-10-14 03:45:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19134 states. [2020-10-14 03:45:30,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19134 states to 19134 states and 20121 transitions. [2020-10-14 03:45:30,924 INFO L78 Accepts]: Start accepts. Automaton has 19134 states and 20121 transitions. Word has length 1195 [2020-10-14 03:45:30,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:30,924 INFO L479 AbstractCegarLoop]: Abstraction has 19134 states and 20121 transitions. [2020-10-14 03:45:30,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:45:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 19134 states and 20121 transitions. [2020-10-14 03:45:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1346 [2020-10-14 03:45:30,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:30,953 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:30,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:45:30,953 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:30,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:30,954 INFO L82 PathProgramCache]: Analyzing trace with hash 702233346, now seen corresponding path program 1 times [2020-10-14 03:45:30,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:30,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239925221] [2020-10-14 03:45:30,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:31,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:31,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:36,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:36,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1365 [2020-10-14 03:45:36,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:45:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:45:36,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:36,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-14 03:45:36,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:45:36,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:36,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:36,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:36,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:36,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:36,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:36,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:36,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:36,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:36,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:36,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:36,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:36,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:36,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:36,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:45:36,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:36,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:45:36,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:36,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:45:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:36,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:36,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:36,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:45:36,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:36,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:45:36,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:36,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:36,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:36,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:36,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:45:36,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:45:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:36,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:36,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:36,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:36,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-14 03:45:36,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:36,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:45:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:36,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2020-10-14 03:45:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:36,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:45:37,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:37,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:45:37,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:45:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:37,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:37,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 746 [2020-10-14 03:45:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:37,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:37,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 03:45:37,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:45:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:37,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1019 [2020-10-14 03:45:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:37,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:37,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 671 proven. 591 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2020-10-14 03:45:38,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239925221] [2020-10-14 03:45:38,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:38,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:38,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495405940] [2020-10-14 03:45:38,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:38,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:38,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:38,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:38,242 INFO L87 Difference]: Start difference. First operand 19134 states and 20121 transitions. Second operand 7 states. [2020-10-14 03:45:41,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:41,488 INFO L93 Difference]: Finished difference Result 41985 states and 44339 transitions. [2020-10-14 03:45:41,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:45:41,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1345 [2020-10-14 03:45:41,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:41,534 INFO L225 Difference]: With dead ends: 41985 [2020-10-14 03:45:41,534 INFO L226 Difference]: Without dead ends: 22838 [2020-10-14 03:45:41,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:41,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22838 states. [2020-10-14 03:45:41,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22838 to 22493. [2020-10-14 03:45:41,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22493 states. [2020-10-14 03:45:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22493 states to 22493 states and 23616 transitions. [2020-10-14 03:45:41,889 INFO L78 Accepts]: Start accepts. Automaton has 22493 states and 23616 transitions. Word has length 1345 [2020-10-14 03:45:41,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:41,890 INFO L479 AbstractCegarLoop]: Abstraction has 22493 states and 23616 transitions. [2020-10-14 03:45:41,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand 22493 states and 23616 transitions. [2020-10-14 03:45:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1570 [2020-10-14 03:45:41,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:41,933 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-14 03:45:41,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:45:41,933 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:41,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:41,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1505694383, now seen corresponding path program 1 times [2020-10-14 03:45:41,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:41,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422207220] [2020-10-14 03:45:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:42,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:42,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:43,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:47,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1591 [2020-10-14 03:45:47,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:47,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5189 [2020-10-14 03:45:47,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:47,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 786 [2020-10-14 03:45:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:45:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:47,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:47,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:47,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:47,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:47,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:47,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:45:47,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:47,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:45:47,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:47,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:47,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:47,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:47,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:47,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:47,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:45:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:47,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:47,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 03:45:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:47,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:45:47,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:48,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2020-10-14 03:45:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:48,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:48,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:48,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:48,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:48,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 03:45:48,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:48,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:48,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:48,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:48,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:45:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:48,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1053 [2020-10-14 03:45:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:48,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:48,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:45:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:48,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:48,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1165 [2020-10-14 03:45:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:48,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:48,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:48,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:45:48,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:48,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:45:48,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:48,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:45:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:48,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:48,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1380 [2020-10-14 03:45:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:48,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:48,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:48,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:45:48,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:45:48,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:48,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:45:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:48,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:50,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4076 backedges. 1093 proven. 469 refuted. 0 times theorem prover too weak. 2514 trivial. 0 not checked. [2020-10-14 03:45:50,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422207220] [2020-10-14 03:45:50,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:50,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:50,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914388605] [2020-10-14 03:45:50,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:50,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:50,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:50,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:50,217 INFO L87 Difference]: Start difference. First operand 22493 states and 23616 transitions. Second operand 7 states. [2020-10-14 03:45:54,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:54,314 INFO L93 Difference]: Finished difference Result 45934 states and 48876 transitions. [2020-10-14 03:45:54,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:45:54,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1569 [2020-10-14 03:45:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:54,370 INFO L225 Difference]: With dead ends: 45934 [2020-10-14 03:45:54,370 INFO L226 Difference]: Without dead ends: 23784 [2020-10-14 03:45:54,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:45:54,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23784 states. [2020-10-14 03:45:54,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23784 to 23504. [2020-10-14 03:45:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23504 states. [2020-10-14 03:45:54,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23504 states to 23504 states and 24643 transitions. [2020-10-14 03:45:54,794 INFO L78 Accepts]: Start accepts. Automaton has 23504 states and 24643 transitions. Word has length 1569 [2020-10-14 03:45:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:54,795 INFO L479 AbstractCegarLoop]: Abstraction has 23504 states and 24643 transitions. [2020-10-14 03:45:54,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 23504 states and 24643 transitions. [2020-10-14 03:45:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1645 [2020-10-14 03:45:54,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:54,840 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-14 03:45:54,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:45:54,841 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:54,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:54,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1711011857, now seen corresponding path program 1 times [2020-10-14 03:45:54,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:54,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169157948] [2020-10-14 03:45:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:00,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:00,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1670 [2020-10-14 03:46:00,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:46:00,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-14 03:46:00,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:00,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 697 [2020-10-14 03:46:00,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:46:00,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:00,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:00,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:00,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:46:00,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:00,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:00,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:00,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:00,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:00,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:46:00,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:46:00,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:00,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:00,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:46:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:00,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:00,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:00,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:00,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:00,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:46:00,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:00,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:00,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:00,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:00,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 03:46:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:00,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:00,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:46:00,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:00,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:46:00,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:00,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:00,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-14 03:46:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:00,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:00,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:00,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:00,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:00,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:46:00,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:00,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:46:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:00,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2020-10-14 03:46:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:00,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:00,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:00,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:46:00,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:00,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 03:46:00,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:00,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:46:00,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:01,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 939 [2020-10-14 03:46:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:46:01,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:46:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:01,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:46:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:01,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:46:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:01,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:01,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:46:01,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:46:01,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:01,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:01,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1240 [2020-10-14 03:46:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:01,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:01,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:46:01,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:46:01,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:01,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:46:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:01,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1455 [2020-10-14 03:46:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:01,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:01,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:01,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:46:01,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:01,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:46:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:01,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4602 backedges. 1060 proven. 607 refuted. 0 times theorem prover too weak. 2935 trivial. 0 not checked. [2020-10-14 03:46:03,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169157948] [2020-10-14 03:46:03,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:03,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:46:03,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887135809] [2020-10-14 03:46:03,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:46:03,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:03,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:46:03,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:46:03,918 INFO L87 Difference]: Start difference. First operand 23504 states and 24643 transitions. Second operand 8 states. [2020-10-14 03:46:08,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:08,068 INFO L93 Difference]: Finished difference Result 48023 states and 50324 transitions. [2020-10-14 03:46:08,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:46:08,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1644 [2020-10-14 03:46:08,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:08,117 INFO L225 Difference]: With dead ends: 48023 [2020-10-14 03:46:08,117 INFO L226 Difference]: Without dead ends: 24862 [2020-10-14 03:46:08,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:46:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24862 states. [2020-10-14 03:46:08,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24862 to 24858. [2020-10-14 03:46:08,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24858 states. [2020-10-14 03:46:08,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 26018 transitions. [2020-10-14 03:46:08,437 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 26018 transitions. Word has length 1644 [2020-10-14 03:46:08,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:08,439 INFO L479 AbstractCegarLoop]: Abstraction has 24858 states and 26018 transitions. [2020-10-14 03:46:08,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:46:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 26018 transitions. [2020-10-14 03:46:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1722 [2020-10-14 03:46:08,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:08,503 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:46:08,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:46:08,503 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:08,504 INFO L82 PathProgramCache]: Analyzing trace with hash -110860014, now seen corresponding path program 1 times [2020-10-14 03:46:08,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:08,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33074147] [2020-10-14 03:46:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:08,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:10,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:10,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:13,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1749 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 257 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 03:46:13,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:14,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:14,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:14,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:14,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:14,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:14,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:14,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:14,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:14,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:14,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:14,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:46:14,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:14,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:46:14,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:14,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:14,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:14,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:14,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 03:46:14,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:14,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:46:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:14,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:14,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:14,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:14,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 03:46:14,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:14,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 03:46:14,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:14,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 03:46:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:14,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:14,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:46:14,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:46:14,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:14,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:14,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:14,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:46:14,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:14,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:14,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-14 03:46:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:14,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:14,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:14,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:14,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:46:14,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:14,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:46:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:14,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:14,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2020-10-14 03:46:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:14,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:46:15,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 03:46:15,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:46:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:15,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:46:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:46:15,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:46:15,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:15,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:15,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:15,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:15,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2020-10-14 03:46:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:46:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:46:15,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:46:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:46:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:46:15,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:46:15,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:15,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1317 [2020-10-14 03:46:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:46:15,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:46:15,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:46:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:15,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1532 [2020-10-14 03:46:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:46:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4653 backedges. 596 proven. 1031 refuted. 0 times theorem prover too weak. 3026 trivial. 0 not checked. [2020-10-14 03:46:17,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33074147] [2020-10-14 03:46:17,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:17,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:17,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344105295] [2020-10-14 03:46:17,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:17,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:17,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:17,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:17,528 INFO L87 Difference]: Start difference. First operand 24858 states and 26018 transitions. Second operand 7 states. [2020-10-14 03:46:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:21,343 INFO L93 Difference]: Finished difference Result 49714 states and 52040 transitions. [2020-10-14 03:46:21,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:46:21,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1721 [2020-10-14 03:46:21,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:21,380 INFO L225 Difference]: With dead ends: 49714 [2020-10-14 03:46:21,380 INFO L226 Difference]: Without dead ends: 25199 [2020-10-14 03:46:21,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:46:21,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25199 states. [2020-10-14 03:46:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25199 to 25195. [2020-10-14 03:46:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25195 states. [2020-10-14 03:46:21,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25195 states to 25195 states and 26359 transitions. [2020-10-14 03:46:21,665 INFO L78 Accepts]: Start accepts. Automaton has 25195 states and 26359 transitions. Word has length 1721 [2020-10-14 03:46:21,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:21,666 INFO L479 AbstractCegarLoop]: Abstraction has 25195 states and 26359 transitions. [2020-10-14 03:46:21,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 25195 states and 26359 transitions. [2020-10-14 03:46:21,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1756 [2020-10-14 03:46:21,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:21,705 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:21,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:46:21,706 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:21,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:21,706 INFO L82 PathProgramCache]: Analyzing trace with hash -662555943, now seen corresponding path program 1 times [2020-10-14 03:46:21,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:21,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352696552] [2020-10-14 03:46:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:22,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:22,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:22,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:22,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:26,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:26,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1785 [2020-10-14 03:46:26,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:26,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-14 03:46:26,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:26,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1366 [2020-10-14 03:46:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 221 [2020-10-14 03:46:26,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:27,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:27,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:46:27,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:46:27,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:46:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:46:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:46:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:46:27,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:46:27,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 03:46:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:27,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:46:27,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:46:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:46:27,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:46:27,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:46:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:46:27,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:46:27,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:27,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-14 03:46:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:27,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:27,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:46:27,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:27,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 03:46:27,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:27,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:27,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:27,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 295 [2020-10-14 03:46:27,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:28,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:46:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:28,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:28,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:28,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:46:28,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:46:28,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:28,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 03:46:28,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:28,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1351 [2020-10-14 03:46:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:28,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:28,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:46:28,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 03:46:28,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:28,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:46:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1566 [2020-10-14 03:46:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:28,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:28,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:46:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:28,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5325 backedges. 1530 proven. 148 refuted. 0 times theorem prover too weak. 3647 trivial. 0 not checked. [2020-10-14 03:46:29,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352696552] [2020-10-14 03:46:29,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:29,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:29,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576598443] [2020-10-14 03:46:29,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:29,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:29,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:29,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:29,906 INFO L87 Difference]: Start difference. First operand 25195 states and 26359 transitions. Second operand 7 states.