/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:00:02,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:00:02,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:00:02,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:00:02,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:00:02,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:00:02,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:00:02,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:00:02,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:00:02,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:00:02,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:00:02,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:00:03,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:00:03,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:00:03,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:00:03,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:00:03,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:00:03,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:00:03,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:00:03,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:00:03,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:00:03,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:00:03,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:00:03,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:00:03,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:00:03,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:00:03,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:00:03,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:00:03,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:00:03,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:00:03,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:00:03,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:00:03,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:00:03,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:00:03,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:00:03,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:00:03,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:00:03,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:00:03,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:00:03,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:00:03,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:00:03,031 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 [2020-10-29 08:00:03,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:00:03,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:00:03,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:00:03,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:00:03,062 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:00:03,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:00:03,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:00:03,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:00:03,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:00:03,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:00:03,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:00:03,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:00:03,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:00:03,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:00:03,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:00:03,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:00:03,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:00:03,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:00:03,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:00:03,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:00:03,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:00:03,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:00:03,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:00:03,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:00:03,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:00:03,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:00:03,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:00:03,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:00:03,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:00:03,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:00:03,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:00:03,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:00:03,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:00:03,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:00:03,535 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:00:03,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label21.c [2020-10-29 08:00:03,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edc2a0b8c/bd005fbd4f224a93bba90c5be910bf25/FLAG038f588e0 [2020-10-29 08:00:04,554 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:00:04,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label21.c [2020-10-29 08:00:04,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edc2a0b8c/bd005fbd4f224a93bba90c5be910bf25/FLAG038f588e0 [2020-10-29 08:00:04,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edc2a0b8c/bd005fbd4f224a93bba90c5be910bf25 [2020-10-29 08:00:04,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:00:04,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:00:04,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:00:04,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:00:04,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:00:04,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:00:04" (1/1) ... [2020-10-29 08:00:04,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58af187a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:04, skipping insertion in model container [2020-10-29 08:00:04,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:00:04" (1/1) ... [2020-10-29 08:00:04,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:00:04,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:00:05,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:00:05,661 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:00:05,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:00:05,966 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:00:05,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05 WrapperNode [2020-10-29 08:00:05,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:00:05,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:00:05,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:00:05,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:00:05,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (1/1) ... [2020-10-29 08:00:05,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (1/1) ... [2020-10-29 08:00:06,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (1/1) ... [2020-10-29 08:00:06,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (1/1) ... [2020-10-29 08:00:06,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (1/1) ... [2020-10-29 08:00:06,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (1/1) ... [2020-10-29 08:00:06,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (1/1) ... [2020-10-29 08:00:06,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:00:06,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:00:06,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:00:06,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:00:06,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (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 [2020-10-29 08:00:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:00:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:00:06,259 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:00:06,259 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:00:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:00:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:00:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:00:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:00:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:00:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:00:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:00:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:00:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:00:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:00:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:00:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:00:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:00:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:00:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:00:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:00:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:00:08,515 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:00:08,516 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:00:08,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:00:08 BoogieIcfgContainer [2020-10-29 08:00:08,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:00:08,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:00:08,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:00:08,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:00:08,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:00:04" (1/3) ... [2020-10-29 08:00:08,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590f8307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:00:08, skipping insertion in model container [2020-10-29 08:00:08,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:00:05" (2/3) ... [2020-10-29 08:00:08,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590f8307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:00:08, skipping insertion in model container [2020-10-29 08:00:08,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:00:08" (3/3) ... [2020-10-29 08:00:08,527 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label21.c [2020-10-29 08:00:08,539 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:00:08,545 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:00:08,559 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:00:08,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:00:08,604 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:00:08,604 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:00:08,604 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:00:08,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:00:08,605 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:00:08,605 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:00:08,605 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:00:08,646 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:00:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 08:00:08,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:08,658 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] [2020-10-29 08:00:08,658 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:08,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:08,667 INFO L82 PathProgramCache]: Analyzing trace with hash -805708276, now seen corresponding path program 1 times [2020-10-29 08:00:08,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:08,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297466839] [2020-10-29 08:00:08,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:08,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:09,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:09,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-29 08:00:09,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-29 08:00:09,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:09,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:09,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 08:00:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:00:09,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:09,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:09,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:09,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:09,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:09,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:00:09,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:09,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:09,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:00:09,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297466839] [2020-10-29 08:00:09,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:00:09,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:00:09,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506561316] [2020-10-29 08:00:09,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:00:09,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:09,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:00:09,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:00:09,778 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 08:00:14,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:14,101 INFO L93 Difference]: Finished difference Result 1189 states and 2183 transitions. [2020-10-29 08:00:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:00:14,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-29 08:00:14,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:14,137 INFO L225 Difference]: With dead ends: 1189 [2020-10-29 08:00:14,137 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 08:00:14,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:00:14,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 08:00:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 688. [2020-10-29 08:00:14,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-10-29 08:00:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1086 transitions. [2020-10-29 08:00:14,286 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1086 transitions. Word has length 45 [2020-10-29 08:00:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:14,287 INFO L481 AbstractCegarLoop]: Abstraction has 688 states and 1086 transitions. [2020-10-29 08:00:14,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:00:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1086 transitions. [2020-10-29 08:00:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-29 08:00:14,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:14,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:14,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:00:14,296 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:14,298 INFO L82 PathProgramCache]: Analyzing trace with hash 784150393, now seen corresponding path program 1 times [2020-10-29 08:00:14,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:14,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954831039] [2020-10-29 08:00:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:14,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:14,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 08:00:15,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:00:15,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-29 08:00:15,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 08:00:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:15,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:15,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:15,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:00:15,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 08:00:15,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:15,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:15,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:15,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:15,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-29 08:00:15,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:15,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:15,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:15,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:15,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:00:15,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 08:00:15,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954831039] [2020-10-29 08:00:15,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:15,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:15,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546547971] [2020-10-29 08:00:15,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:15,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:15,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:15,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:15,745 INFO L87 Difference]: Start difference. First operand 688 states and 1086 transitions. Second operand 7 states. [2020-10-29 08:00:23,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:23,467 INFO L93 Difference]: Finished difference Result 2402 states and 4037 transitions. [2020-10-29 08:00:23,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:00:23,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 114 [2020-10-29 08:00:23,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:23,480 INFO L225 Difference]: With dead ends: 2402 [2020-10-29 08:00:23,480 INFO L226 Difference]: Without dead ends: 1720 [2020-10-29 08:00:23,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:00:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2020-10-29 08:00:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1714. [2020-10-29 08:00:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2020-10-29 08:00:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2473 transitions. [2020-10-29 08:00:23,566 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2473 transitions. Word has length 114 [2020-10-29 08:00:23,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:23,567 INFO L481 AbstractCegarLoop]: Abstraction has 1714 states and 2473 transitions. [2020-10-29 08:00:23,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2473 transitions. [2020-10-29 08:00:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-29 08:00:23,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:23,575 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:00:23,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:00:23,576 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:23,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:23,576 INFO L82 PathProgramCache]: Analyzing trace with hash 647770020, now seen corresponding path program 1 times [2020-10-29 08:00:23,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:23,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624074129] [2020-10-29 08:00:23,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:23,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:23,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:23,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:24,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:24,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:27,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-29 08:00:28,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:00:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 08:00:28,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:00:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-29 08:00:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:28,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:28,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:28,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:00:28,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:28,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:28,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:28,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:28,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 08:00:28,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:28,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:00:28,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:28,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 08:00:28,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:28,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 08:00:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:29,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:29,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:00:29,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:29,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 08:00:29,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:29,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:29,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:29,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 08:00:29,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:00:29,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624074129] [2020-10-29 08:00:29,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:29,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:29,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773675992] [2020-10-29 08:00:29,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:29,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:29,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:29,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:29,284 INFO L87 Difference]: Start difference. First operand 1714 states and 2473 transitions. Second operand 8 states. [2020-10-29 08:00:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:34,593 INFO L93 Difference]: Finished difference Result 3801 states and 5802 transitions. [2020-10-29 08:00:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:00:34,594 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 231 [2020-10-29 08:00:34,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:34,609 INFO L225 Difference]: With dead ends: 3801 [2020-10-29 08:00:34,609 INFO L226 Difference]: Without dead ends: 2430 [2020-10-29 08:00:34,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:00:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2020-10-29 08:00:34,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2073. [2020-10-29 08:00:34,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2073 states. [2020-10-29 08:00:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2972 transitions. [2020-10-29 08:00:34,687 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2972 transitions. Word has length 231 [2020-10-29 08:00:34,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:34,688 INFO L481 AbstractCegarLoop]: Abstraction has 2073 states and 2972 transitions. [2020-10-29 08:00:34,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:34,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2972 transitions. [2020-10-29 08:00:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-29 08:00:34,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:34,693 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:00:34,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:00:34,694 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:34,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:34,694 INFO L82 PathProgramCache]: Analyzing trace with hash -511827364, now seen corresponding path program 1 times [2020-10-29 08:00:34,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:34,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015222269] [2020-10-29 08:00:34,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:34,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:34,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:35,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:37,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:39,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:39,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-29 08:00:39,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:39,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 08:00:39,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:39,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 08:00:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:39,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:39,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:39,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:39,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:39,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:39,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:00:39,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:39,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:39,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:39,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:39,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:39,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:39,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:39,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:39,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:39,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:39,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:00:39,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:39,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:39,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:39,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:39,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:39,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 08:00:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:00:40,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 08:00:40,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:40,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 08:00:40,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 08:00:40,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015222269] [2020-10-29 08:00:40,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:40,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:40,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267932096] [2020-10-29 08:00:40,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:40,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:40,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:40,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:40,339 INFO L87 Difference]: Start difference. First operand 2073 states and 2972 transitions. Second operand 7 states. [2020-10-29 08:00:45,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:45,781 INFO L93 Difference]: Finished difference Result 4542 states and 6684 transitions. [2020-10-29 08:00:45,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:00:45,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 267 [2020-10-29 08:00:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:45,798 INFO L225 Difference]: With dead ends: 4542 [2020-10-29 08:00:45,798 INFO L226 Difference]: Without dead ends: 2455 [2020-10-29 08:00:45,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:00:45,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-10-29 08:00:45,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2423. [2020-10-29 08:00:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-10-29 08:00:45,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 2770 transitions. [2020-10-29 08:00:45,880 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 2770 transitions. Word has length 267 [2020-10-29 08:00:45,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:45,881 INFO L481 AbstractCegarLoop]: Abstraction has 2423 states and 2770 transitions. [2020-10-29 08:00:45,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:45,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 2770 transitions. [2020-10-29 08:00:45,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-29 08:00:45,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:45,886 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:00:45,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:00:45,887 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:45,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1002268678, now seen corresponding path program 1 times [2020-10-29 08:00:45,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:45,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657074583] [2020-10-29 08:00:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:45,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:45,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:46,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-29 08:00:50,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:50,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4198 [2020-10-29 08:00:50,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 08:00:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:00:50,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:50,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:50,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:00:50,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:50,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:50,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:50,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:50,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:50,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 08:00:50,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:50,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:50,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:50,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 08:00:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:50,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:50,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:50,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:50,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:50,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 08:00:50,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:50,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:50,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:00:50,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 08:00:50,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657074583] [2020-10-29 08:00:50,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:50,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:50,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424482804] [2020-10-29 08:00:50,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:50,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:50,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:50,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:50,747 INFO L87 Difference]: Start difference. First operand 2423 states and 2770 transitions. Second operand 7 states. [2020-10-29 08:00:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:54,196 INFO L93 Difference]: Finished difference Result 6273 states and 7316 transitions. [2020-10-29 08:00:54,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:00:54,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-29 08:00:54,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:54,216 INFO L225 Difference]: With dead ends: 6273 [2020-10-29 08:00:54,216 INFO L226 Difference]: Without dead ends: 4193 [2020-10-29 08:00:54,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:00:54,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2020-10-29 08:00:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 4157. [2020-10-29 08:00:54,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4157 states. [2020-10-29 08:00:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4157 states to 4157 states and 4725 transitions. [2020-10-29 08:00:54,356 INFO L78 Accepts]: Start accepts. Automaton has 4157 states and 4725 transitions. Word has length 270 [2020-10-29 08:00:54,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:54,356 INFO L481 AbstractCegarLoop]: Abstraction has 4157 states and 4725 transitions. [2020-10-29 08:00:54,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:54,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4157 states and 4725 transitions. [2020-10-29 08:00:54,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2020-10-29 08:00:54,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:54,370 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 08:00:54,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:00:54,370 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:54,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:54,371 INFO L82 PathProgramCache]: Analyzing trace with hash -201415022, now seen corresponding path program 1 times [2020-10-29 08:00:54,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:54,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225060048] [2020-10-29 08:00:54,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:54,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:54,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:54,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:59,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:59,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:59,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 499 [2020-10-29 08:00:59,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:00:59,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-29 08:00:59,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:59,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:00:59,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:00:59,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:59,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:59,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:59,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:59,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:59,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:00:59,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:59,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:59,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:59,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:59,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:59,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:00:59,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:59,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 08:00:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:59,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:59,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:59,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:59,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:59,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:00:59,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:59,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:59,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-29 08:00:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:59,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:59,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:59,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:00:59,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 08:00:59,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:59,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:00:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:01:00,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-29 08:01:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:00,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:00,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:00,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:00,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:01:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:00,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:00,305 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 339 proven. 109 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-29 08:01:00,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225060048] [2020-10-29 08:01:00,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:00,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:00,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582740537] [2020-10-29 08:01:00,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:00,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:00,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:00,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:00,308 INFO L87 Difference]: Start difference. First operand 4157 states and 4725 transitions. Second operand 7 states. [2020-10-29 08:01:04,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:04,347 INFO L93 Difference]: Finished difference Result 9794 states and 11559 transitions. [2020-10-29 08:01:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:04,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 481 [2020-10-29 08:01:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:04,378 INFO L225 Difference]: With dead ends: 9794 [2020-10-29 08:01:04,378 INFO L226 Difference]: Without dead ends: 5980 [2020-10-29 08:01:04,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:04,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2020-10-29 08:01:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 5200. [2020-10-29 08:01:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5200 states. [2020-10-29 08:01:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 5755 transitions. [2020-10-29 08:01:04,594 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 5755 transitions. Word has length 481 [2020-10-29 08:01:04,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:04,596 INFO L481 AbstractCegarLoop]: Abstraction has 5200 states and 5755 transitions. [2020-10-29 08:01:04,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 5755 transitions. [2020-10-29 08:01:04,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2020-10-29 08:01:04,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:04,614 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:04,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:01:04,614 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:04,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:04,615 INFO L82 PathProgramCache]: Analyzing trace with hash -603638721, now seen corresponding path program 1 times [2020-10-29 08:01:04,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:04,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246852259] [2020-10-29 08:01:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:04,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:05,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:06,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:09,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:09,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 508 [2020-10-29 08:01:09,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:09,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 08:01:09,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:09,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-29 08:01:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:01:09,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:09,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:09,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:09,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:09,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:09,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:09,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:01:09,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:09,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:09,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:09,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:09,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:09,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:01:09,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:01:09,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:09,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:01:09,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:10,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-29 08:01:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:10,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:10,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:01:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:10,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-10-29 08:01:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:10,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:10,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:10,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:10,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:01:10,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:10,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:10,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:10,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:10,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:10,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 254 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-29 08:01:10,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246852259] [2020-10-29 08:01:10,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:10,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:01:10,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465682169] [2020-10-29 08:01:10,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:01:10,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:10,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:01:10,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:01:10,578 INFO L87 Difference]: Start difference. First operand 5200 states and 5755 transitions. Second operand 8 states. [2020-10-29 08:01:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:15,394 INFO L93 Difference]: Finished difference Result 12129 states and 13595 transitions. [2020-10-29 08:01:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:01:15,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 492 [2020-10-29 08:01:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:15,424 INFO L225 Difference]: With dead ends: 12129 [2020-10-29 08:01:15,425 INFO L226 Difference]: Without dead ends: 7272 [2020-10-29 08:01:15,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-29 08:01:15,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2020-10-29 08:01:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7256. [2020-10-29 08:01:15,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7256 states. [2020-10-29 08:01:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7256 states to 7256 states and 7968 transitions. [2020-10-29 08:01:15,598 INFO L78 Accepts]: Start accepts. Automaton has 7256 states and 7968 transitions. Word has length 492 [2020-10-29 08:01:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:15,599 INFO L481 AbstractCegarLoop]: Abstraction has 7256 states and 7968 transitions. [2020-10-29 08:01:15,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:01:15,599 INFO L276 IsEmpty]: Start isEmpty. Operand 7256 states and 7968 transitions. [2020-10-29 08:01:15,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2020-10-29 08:01:15,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:15,611 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:15,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:01:15,612 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:15,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1688400935, now seen corresponding path program 1 times [2020-10-29 08:01:15,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:15,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147565639] [2020-10-29 08:01:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:17,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:17,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:18,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 584 [2020-10-29 08:01:20,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:20,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 08:01:20,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-29 08:01:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:20,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:20,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:20,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:01:20,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:01:20,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:20,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-29 08:01:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:21,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:21,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:21,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:01:21,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:21,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:21,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:21,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:21,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:01:21,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:21,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-29 08:01:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:21,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:21,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:21,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:21,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-29 08:01:21,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:21,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:21,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:21,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:21,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:21,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 360 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-29 08:01:22,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147565639] [2020-10-29 08:01:22,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:22,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:01:22,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63832603] [2020-10-29 08:01:22,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:01:22,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:22,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:01:22,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:01:22,777 INFO L87 Difference]: Start difference. First operand 7256 states and 7968 transitions. Second operand 8 states. [2020-10-29 08:01:27,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:27,801 INFO L93 Difference]: Finished difference Result 15194 states and 16695 transitions. [2020-10-29 08:01:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:01:27,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 568 [2020-10-29 08:01:27,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:27,829 INFO L225 Difference]: With dead ends: 15194 [2020-10-29 08:01:27,829 INFO L226 Difference]: Without dead ends: 8620 [2020-10-29 08:01:27,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:01:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8620 states. [2020-10-29 08:01:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8620 to 8277. [2020-10-29 08:01:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8277 states. [2020-10-29 08:01:28,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 9045 transitions. [2020-10-29 08:01:28,020 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 9045 transitions. Word has length 568 [2020-10-29 08:01:28,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:28,021 INFO L481 AbstractCegarLoop]: Abstraction has 8277 states and 9045 transitions. [2020-10-29 08:01:28,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:01:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 9045 transitions. [2020-10-29 08:01:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2020-10-29 08:01:28,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:28,034 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:28,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:01:28,034 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:28,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:28,035 INFO L82 PathProgramCache]: Analyzing trace with hash 584575216, now seen corresponding path program 1 times [2020-10-29 08:01:28,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:28,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56545643] [2020-10-29 08:01:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:30,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:33,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 594 [2020-10-29 08:01:33,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 08:01:33,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 08:01:33,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:33,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:33,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:01:33,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:01:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-29 08:01:33,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:33,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:33,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:33,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:33,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:01:33,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:33,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:01:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:33,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:33,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:33,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:01:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:01:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 08:01:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:33,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:01:33,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:33,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-29 08:01:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:33,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:33,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:01:33,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:33,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-29 08:01:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:33,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:33,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:33,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:01:33,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:33,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:33,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-29 08:01:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:33,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 157 proven. 477 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-10-29 08:01:34,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56545643] [2020-10-29 08:01:34,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:34,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:01:34,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553394506] [2020-10-29 08:01:34,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:01:34,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:34,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:01:34,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:01:34,058 INFO L87 Difference]: Start difference. First operand 8277 states and 9045 transitions. Second operand 8 states. [2020-10-29 08:01:37,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:37,524 INFO L93 Difference]: Finished difference Result 15900 states and 17459 transitions. [2020-10-29 08:01:37,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:01:37,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 576 [2020-10-29 08:01:37,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:37,547 INFO L225 Difference]: With dead ends: 15900 [2020-10-29 08:01:37,547 INFO L226 Difference]: Without dead ends: 8305 [2020-10-29 08:01:37,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:01:37,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8305 states. [2020-10-29 08:01:37,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8305 to 7938. [2020-10-29 08:01:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7938 states. [2020-10-29 08:01:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7938 states to 7938 states and 8501 transitions. [2020-10-29 08:01:37,740 INFO L78 Accepts]: Start accepts. Automaton has 7938 states and 8501 transitions. Word has length 576 [2020-10-29 08:01:37,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:37,740 INFO L481 AbstractCegarLoop]: Abstraction has 7938 states and 8501 transitions. [2020-10-29 08:01:37,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:01:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 7938 states and 8501 transitions. [2020-10-29 08:01:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2020-10-29 08:01:37,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:37,763 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:01:37,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:01:37,764 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:37,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1498148408, now seen corresponding path program 1 times [2020-10-29 08:01:37,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:37,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783783282] [2020-10-29 08:01:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:38,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:38,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:38,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1028 [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:01:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:01:43,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:01:43,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:43,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:43,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:43,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:43,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:43,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:01:43,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:43,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:43,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:43,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:43,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:01:43,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:43,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:43,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:43,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:01:43,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:01:43,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-29 08:01:43,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:43,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:01:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:43,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:01:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:43,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:43,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:01:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:44,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:01:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:44,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:01:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:44,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:01:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:44,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:44,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:44,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:44,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:44,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:01:44,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:44,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:01:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:44,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:44,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:01:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:44,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:44,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:44,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:44,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:01:44,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:44,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:44,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:44,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:44,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:44,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:44,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:01:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:44,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:44,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:44,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:44,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:01:44,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:44,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1968 backedges. 479 proven. 455 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2020-10-29 08:01:45,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783783282] [2020-10-29 08:01:45,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:45,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:45,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894499546] [2020-10-29 08:01:45,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:45,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:45,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:45,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:45,123 INFO L87 Difference]: Start difference. First operand 7938 states and 8501 transitions. Second operand 7 states. [2020-10-29 08:01:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:48,318 INFO L93 Difference]: Finished difference Result 15547 states and 16670 transitions. [2020-10-29 08:01:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:48,319 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1006 [2020-10-29 08:01:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:48,339 INFO L225 Difference]: With dead ends: 15547 [2020-10-29 08:01:48,340 INFO L226 Difference]: Without dead ends: 8291 [2020-10-29 08:01:48,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:01:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8291 states. [2020-10-29 08:01:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8291 to 8275. [2020-10-29 08:01:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8275 states. [2020-10-29 08:01:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8275 states to 8275 states and 8845 transitions. [2020-10-29 08:01:48,500 INFO L78 Accepts]: Start accepts. Automaton has 8275 states and 8845 transitions. Word has length 1006 [2020-10-29 08:01:48,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:48,501 INFO L481 AbstractCegarLoop]: Abstraction has 8275 states and 8845 transitions. [2020-10-29 08:01:48,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 8275 states and 8845 transitions. [2020-10-29 08:01:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2020-10-29 08:01:48,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:48,522 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, 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, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:48,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:01:48,522 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:48,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:48,523 INFO L82 PathProgramCache]: Analyzing trace with hash 387221365, now seen corresponding path program 1 times [2020-10-29 08:01:48,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:48,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425300126] [2020-10-29 08:01:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:50,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1064 [2020-10-29 08:01:53,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:53,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:01:53,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:01:53,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:01:53,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:53,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:53,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:53,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:54,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:01:54,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:01:54,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:01:54,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:01:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:01:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:01:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:01:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:01:54,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:54,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:01:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:01:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2615 backedges. 780 proven. 248 refuted. 0 times theorem prover too weak. 1587 trivial. 0 not checked. [2020-10-29 08:01:55,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425300126] [2020-10-29 08:01:55,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:55,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:55,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31919535] [2020-10-29 08:01:55,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:55,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:55,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:55,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:55,237 INFO L87 Difference]: Start difference. First operand 8275 states and 8845 transitions. Second operand 7 states. [2020-10-29 08:01:59,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:59,327 INFO L93 Difference]: Finished difference Result 20621 states and 22344 transitions. [2020-10-29 08:01:59,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:01:59,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1040 [2020-10-29 08:01:59,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:59,372 INFO L225 Difference]: With dead ends: 20621 [2020-10-29 08:01:59,373 INFO L226 Difference]: Without dead ends: 13028 [2020-10-29 08:01:59,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:59,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13028 states. [2020-10-29 08:01:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13028 to 12681. [2020-10-29 08:01:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12681 states. [2020-10-29 08:01:59,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12681 states to 12681 states and 13606 transitions. [2020-10-29 08:01:59,624 INFO L78 Accepts]: Start accepts. Automaton has 12681 states and 13606 transitions. Word has length 1040 [2020-10-29 08:01:59,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:59,626 INFO L481 AbstractCegarLoop]: Abstraction has 12681 states and 13606 transitions. [2020-10-29 08:01:59,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand 12681 states and 13606 transitions. [2020-10-29 08:01:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2020-10-29 08:01:59,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:59,650 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, 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, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:59,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:01:59,650 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:59,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:59,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1029283499, now seen corresponding path program 1 times [2020-10-29 08:01:59,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:59,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346867998] [2020-10-29 08:01:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:00,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:03,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:04,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:04,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1065 [2020-10-29 08:02:04,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:02:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 08:02:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:04,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:02:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 762 [2020-10-29 08:02:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 299 [2020-10-29 08:02:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:05,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:02:05,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:05,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:05,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:02:05,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:05,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:05,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:02:05,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:05,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:02:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:05,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:05,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:02:05,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:05,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:02:05,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-29 08:02:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:05,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:02:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 08:02:05,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:05,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 08:02:05,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:05,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 08:02:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:05,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:05,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:05,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:05,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:02:05,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 08:02:05,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:05,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:02:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2621 backedges. 312 proven. 7 refuted. 0 times theorem prover too weak. 2302 trivial. 0 not checked. [2020-10-29 08:02:06,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346867998] [2020-10-29 08:02:06,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:06,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:02:06,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862496124] [2020-10-29 08:02:06,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:02:06,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:06,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:02:06,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:02:06,467 INFO L87 Difference]: Start difference. First operand 12681 states and 13606 transitions. Second operand 5 states. [2020-10-29 08:02:09,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:09,497 INFO L93 Difference]: Finished difference Result 24684 states and 26515 transitions. [2020-10-29 08:02:09,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:02:09,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1041 [2020-10-29 08:02:09,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:09,535 INFO L225 Difference]: With dead ends: 24684 [2020-10-29 08:02:09,535 INFO L226 Difference]: Without dead ends: 12685 [2020-10-29 08:02:09,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:02:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12685 states. [2020-10-29 08:02:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12685 to 12681. [2020-10-29 08:02:09,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12681 states. [2020-10-29 08:02:10,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12681 states to 12681 states and 13455 transitions. [2020-10-29 08:02:10,007 INFO L78 Accepts]: Start accepts. Automaton has 12681 states and 13455 transitions. Word has length 1041 [2020-10-29 08:02:10,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:10,010 INFO L481 AbstractCegarLoop]: Abstraction has 12681 states and 13455 transitions. [2020-10-29 08:02:10,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:02:10,010 INFO L276 IsEmpty]: Start isEmpty. Operand 12681 states and 13455 transitions. [2020-10-29 08:02:10,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1376 [2020-10-29 08:02:10,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:10,056 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:10,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:02:10,057 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:10,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:10,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1149102739, now seen corresponding path program 1 times [2020-10-29 08:02:10,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:10,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041971544] [2020-10-29 08:02:10,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:10,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:10,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:10,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1403 [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5130 [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-29 08:02:15,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:02:15,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:15,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:15,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:15,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:15,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:15,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:15,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:02:15,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:15,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:15,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:15,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:15,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:15,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:15,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:02:15,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:15,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:15,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:15,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:15,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:15,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:02:15,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:15,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:15,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:15,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:02:15,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:15,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:02:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:15,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:16,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:16,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:16,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:16,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 08:02:16,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:16,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:02:16,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:16,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-29 08:02:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:16,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:16,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:16,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 08:02:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:16,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:16,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-29 08:02:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:16,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:16,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:16,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:02:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:16,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:16,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:17,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3654 backedges. 834 proven. 389 refuted. 0 times theorem prover too weak. 2431 trivial. 0 not checked. [2020-10-29 08:02:17,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041971544] [2020-10-29 08:02:17,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:17,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:17,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980631507] [2020-10-29 08:02:17,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:17,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:17,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:17,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:17,572 INFO L87 Difference]: Start difference. First operand 12681 states and 13455 transitions. Second operand 7 states. [2020-10-29 08:02:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:21,518 INFO L93 Difference]: Finished difference Result 26056 states and 27725 transitions. [2020-10-29 08:02:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:02:21,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1375 [2020-10-29 08:02:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:21,561 INFO L225 Difference]: With dead ends: 26056 [2020-10-29 08:02:21,561 INFO L226 Difference]: Without dead ends: 14057 [2020-10-29 08:02:21,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:02:21,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14057 states. [2020-10-29 08:02:21,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14057 to 13696. [2020-10-29 08:02:21,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13696 states. [2020-10-29 08:02:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13696 states to 13696 states and 14478 transitions. [2020-10-29 08:02:21,879 INFO L78 Accepts]: Start accepts. Automaton has 13696 states and 14478 transitions. Word has length 1375 [2020-10-29 08:02:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:21,881 INFO L481 AbstractCegarLoop]: Abstraction has 13696 states and 14478 transitions. [2020-10-29 08:02:21,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:21,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13696 states and 14478 transitions. [2020-10-29 08:02:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1401 [2020-10-29 08:02:21,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:21,927 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:21,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:02:21,927 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:21,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:21,928 INFO L82 PathProgramCache]: Analyzing trace with hash -711997487, now seen corresponding path program 1 times [2020-10-29 08:02:21,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:21,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062076789] [2020-10-29 08:02:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:23,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:24,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1428 [2020-10-29 08:02:27,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 08:02:27,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:02:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1043 [2020-10-29 08:02:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 336 [2020-10-29 08:02:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:27,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:27,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:27,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:27,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:02:27,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:27,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:27,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-29 08:02:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:27,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-29 08:02:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:27,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:28,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 919 [2020-10-29 08:02:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:28,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:28,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:02:28,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:28,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-29 08:02:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:28,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:28,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 337 [2020-10-29 08:02:28,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:28,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:02:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:28,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:28,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:28,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 08:02:28,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:28,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:02:28,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:28,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:02:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 08:02:28,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3829 backedges. 1326 proven. 2 refuted. 0 times theorem prover too weak. 2501 trivial. 0 not checked. [2020-10-29 08:02:30,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062076789] [2020-10-29 08:02:30,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:30,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:30,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486171813] [2020-10-29 08:02:30,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:30,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:30,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:30,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:30,010 INFO L87 Difference]: Start difference. First operand 13696 states and 14478 transitions. Second operand 7 states. [2020-10-29 08:02:33,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:33,824 INFO L93 Difference]: Finished difference Result 30100 states and 31954 transitions. [2020-10-29 08:02:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:02:33,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1400 [2020-10-29 08:02:33,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:33,872 INFO L225 Difference]: With dead ends: 30100 [2020-10-29 08:02:33,873 INFO L226 Difference]: Without dead ends: 17086 [2020-10-29 08:02:33,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:02:33,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17086 states. [2020-10-29 08:02:34,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17086 to 16745. [2020-10-29 08:02:34,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16745 states. [2020-10-29 08:02:34,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16745 states to 16745 states and 17597 transitions. [2020-10-29 08:02:34,236 INFO L78 Accepts]: Start accepts. Automaton has 16745 states and 17597 transitions. Word has length 1400 [2020-10-29 08:02:34,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:34,238 INFO L481 AbstractCegarLoop]: Abstraction has 16745 states and 17597 transitions. [2020-10-29 08:02:34,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:34,238 INFO L276 IsEmpty]: Start isEmpty. Operand 16745 states and 17597 transitions. [2020-10-29 08:02:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1593 [2020-10-29 08:02:34,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:34,288 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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:34,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:02:34,289 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:34,289 INFO L82 PathProgramCache]: Analyzing trace with hash 987048400, now seen corresponding path program 1 times [2020-10-29 08:02:34,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:34,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770624369] [2020-10-29 08:02:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:34,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:34,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:39,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1622 [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-29 08:02:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:02:39,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:39,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:39,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:39,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:39,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:39,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:39,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:02:39,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:39,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:39,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:39,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:39,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:39,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:39,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:39,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:39,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:40,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:40,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:40,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:40,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:40,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:02:40,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:40,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:40,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:02:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:40,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:40,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:02:40,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:40,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:02:40,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:40,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:40,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:40,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:40,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:02:40,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:02:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:40,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:02:40,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-29 08:02:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1083 [2020-10-29 08:02:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:40,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:40,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:02:40,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:40,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:02:40,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:40,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:02:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:40,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-29 08:02:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:40,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:40,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-29 08:02:40,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:40,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:02:40,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:40,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:40,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-29 08:02:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:40,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:40,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:02:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:40,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:41,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:41,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 08:02:41,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:02:41,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:41,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:42,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4764 backedges. 1113 proven. 491 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2020-10-29 08:02:42,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770624369] [2020-10-29 08:02:42,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:42,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:42,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070448771] [2020-10-29 08:02:42,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:42,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:42,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:42,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:42,906 INFO L87 Difference]: Start difference. First operand 16745 states and 17597 transitions. Second operand 7 states. [2020-10-29 08:02:47,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:47,169 INFO L93 Difference]: Finished difference Result 33829 states and 35557 transitions. [2020-10-29 08:02:47,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:02:47,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1592 [2020-10-29 08:02:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:47,217 INFO L225 Difference]: With dead ends: 33829 [2020-10-29 08:02:47,217 INFO L226 Difference]: Without dead ends: 17766 [2020-10-29 08:02:47,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:02:47,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17766 states. [2020-10-29 08:02:47,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17766 to 17762. [2020-10-29 08:02:47,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17762 states. [2020-10-29 08:02:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17762 states to 17762 states and 18642 transitions. [2020-10-29 08:02:47,519 INFO L78 Accepts]: Start accepts. Automaton has 17762 states and 18642 transitions. Word has length 1592 [2020-10-29 08:02:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:47,521 INFO L481 AbstractCegarLoop]: Abstraction has 17762 states and 18642 transitions. [2020-10-29 08:02:47,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 17762 states and 18642 transitions. [2020-10-29 08:02:47,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1631 [2020-10-29 08:02:47,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:47,560 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, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-29 08:02:47,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:02:47,560 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:47,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:47,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1736805606, now seen corresponding path program 1 times [2020-10-29 08:02:47,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:47,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585265682] [2020-10-29 08:02:47,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:47,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:48,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:48,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:48,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:48,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:52,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:52,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1660 [2020-10-29 08:02:52,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:02:52,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-29 08:02:52,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:52,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:02:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:02:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:53,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:53,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:02:53,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:53,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:53,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:02:53,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:53,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:53,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:53,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:53,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:53,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:02:53,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:02:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:02:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 869 [2020-10-29 08:02:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:53,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:53,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:02:53,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:02:53,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:53,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:02:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1011 [2020-10-29 08:02:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:54,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:54,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:54,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:54,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1121 [2020-10-29 08:02:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:54,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:54,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:02:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:02:54,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:54,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:02:54,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:54,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1259 [2020-10-29 08:02:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:54,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-29 08:02:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:54,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:02:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:54,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:54,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 08:02:54,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:54,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:02:54,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:54,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:54,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:54,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:54,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:54,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4913 backedges. 999 proven. 642 refuted. 0 times theorem prover too weak. 3272 trivial. 0 not checked. [2020-10-29 08:02:56,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585265682] [2020-10-29 08:02:56,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:56,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:56,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537585559] [2020-10-29 08:02:56,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:56,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:56,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:56,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:56,944 INFO L87 Difference]: Start difference. First operand 17762 states and 18642 transitions. Second operand 7 states. [2020-10-29 08:03:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:01,278 INFO L93 Difference]: Finished difference Result 35192 states and 36945 transitions. [2020-10-29 08:03:01,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:03:01,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1630 [2020-10-29 08:03:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:01,323 INFO L225 Difference]: With dead ends: 35192 [2020-10-29 08:03:01,323 INFO L226 Difference]: Without dead ends: 18112 [2020-10-29 08:03:01,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:01,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18112 states. [2020-10-29 08:03:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18112 to 17767. [2020-10-29 08:03:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17767 states. [2020-10-29 08:03:01,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17767 states to 17767 states and 18646 transitions. [2020-10-29 08:03:01,625 INFO L78 Accepts]: Start accepts. Automaton has 17767 states and 18646 transitions. Word has length 1630 [2020-10-29 08:03:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:01,626 INFO L481 AbstractCegarLoop]: Abstraction has 17767 states and 18646 transitions. [2020-10-29 08:03:01,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:01,626 INFO L276 IsEmpty]: Start isEmpty. Operand 17767 states and 18646 transitions. [2020-10-29 08:03:01,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1670 [2020-10-29 08:03:01,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:01,671 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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:01,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:03:01,672 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:01,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:01,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1362971094, now seen corresponding path program 1 times [2020-10-29 08:03:01,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:01,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464635923] [2020-10-29 08:03:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:02,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:02,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:02,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:05,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1701 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:03:07,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:07,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:07,383 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-29 08:03:07,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:03:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:07,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:03:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:07,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:07,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:03:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:03:07,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:07,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:03:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:07,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:03:07,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:03:07,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:07,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:03:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:07,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:07,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:07,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:03:07,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:03:07,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:07,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-29 08:03:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:07,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:08,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:03:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:08,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:08,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:08,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:03:08,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:03:08,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:08,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:08,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-29 08:03:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:08,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:08,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:08,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1160 [2020-10-29 08:03:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:08,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:08,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:08,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:03:08,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:08,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:03:08,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:08,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:03:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:08,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1298 [2020-10-29 08:03:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:08,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-29 08:03:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:08,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 08:03:08,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:08,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-29 08:03:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:08,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:03:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:08,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:08,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:08,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 08:03:08,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:08,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:03:08,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:08,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:08,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:08,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4841 backedges. 815 proven. 445 refuted. 0 times theorem prover too weak. 3581 trivial. 0 not checked. [2020-10-29 08:03:09,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464635923] [2020-10-29 08:03:09,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:09,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:09,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694349865] [2020-10-29 08:03:09,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:09,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:09,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:09,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:09,900 INFO L87 Difference]: Start difference. First operand 17767 states and 18646 transitions. Second operand 7 states. [2020-10-29 08:03:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:15,460 INFO L93 Difference]: Finished difference Result 39265 states and 41288 transitions. [2020-10-29 08:03:15,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:03:15,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1669 [2020-10-29 08:03:15,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:15,511 INFO L225 Difference]: With dead ends: 39265 [2020-10-29 08:03:15,511 INFO L226 Difference]: Without dead ends: 22180 [2020-10-29 08:03:15,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:03:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22180 states. [2020-10-29 08:03:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22180 to 21500. [2020-10-29 08:03:15,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21500 states. [2020-10-29 08:03:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21500 states to 21500 states and 22530 transitions. [2020-10-29 08:03:15,868 INFO L78 Accepts]: Start accepts. Automaton has 21500 states and 22530 transitions. Word has length 1669 [2020-10-29 08:03:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:15,869 INFO L481 AbstractCegarLoop]: Abstraction has 21500 states and 22530 transitions. [2020-10-29 08:03:15,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 21500 states and 22530 transitions. [2020-10-29 08:03:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1749 [2020-10-29 08:03:15,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:15,914 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:15,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 08:03:15,914 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:15,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1222326559, now seen corresponding path program 1 times [2020-10-29 08:03:15,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:15,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55748547] [2020-10-29 08:03:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:16,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:16,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:16,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:17,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1780 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:03:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:21,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:21,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:21,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:03:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:21,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:03:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:21,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:21,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:03:21,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:21,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 08:03:21,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:21,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:03:21,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:03:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:03:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:03:22,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:03:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-29 08:03:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-29 08:03:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1058 [2020-10-29 08:03:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:22,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:03:22,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:03:22,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1168 [2020-10-29 08:03:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:03:22,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:03:22,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:03:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1306 [2020-10-29 08:03:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:03:22,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:03:22,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:03:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1377 [2020-10-29 08:03:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-29 08:03:22,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:03:22,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-29 08:03:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:22,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:03:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:22,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 08:03:22,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:03:22,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:22,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:22,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5754 backedges. 561 proven. 982 refuted. 0 times theorem prover too weak. 4211 trivial. 0 not checked. [2020-10-29 08:03:25,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55748547] [2020-10-29 08:03:25,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:25,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:25,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853997167] [2020-10-29 08:03:25,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:25,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:25,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:25,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:25,064 INFO L87 Difference]: Start difference. First operand 21500 states and 22530 transitions. Second operand 7 states. [2020-10-29 08:03:29,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:29,332 INFO L93 Difference]: Finished difference Result 42990 states and 45074 transitions. [2020-10-29 08:03:29,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:03:29,333 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1748 [2020-10-29 08:03:29,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:29,383 INFO L225 Difference]: With dead ends: 42990 [2020-10-29 08:03:29,383 INFO L226 Difference]: Without dead ends: 21833 [2020-10-29 08:03:29,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:03:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21833 states. [2020-10-29 08:03:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21833 to 21153. [2020-10-29 08:03:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21153 states. [2020-10-29 08:03:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21153 states to 21153 states and 22144 transitions. [2020-10-29 08:03:29,718 INFO L78 Accepts]: Start accepts. Automaton has 21153 states and 22144 transitions. Word has length 1748 [2020-10-29 08:03:29,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:29,719 INFO L481 AbstractCegarLoop]: Abstraction has 21153 states and 22144 transitions. [2020-10-29 08:03:29,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 21153 states and 22144 transitions. [2020-10-29 08:03:29,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1812 [2020-10-29 08:03:29,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:29,770 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:29,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 08:03:29,770 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:29,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:29,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1306843799, now seen corresponding path program 1 times [2020-10-29 08:03:29,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:29,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315330194] [2020-10-29 08:03:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:30,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:30,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:30,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:30,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:33,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1843 [2020-10-29 08:03:35,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:03:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5210 [2020-10-29 08:03:35,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 943 [2020-10-29 08:03:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-29 08:03:35,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:35,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:03:35,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:03:35,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:03:35,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:03:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:03:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:35,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:03:35,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:03:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:03:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:03:35,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-29 08:03:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:35,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:36,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:36,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:03:36,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 08:03:36,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:36,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:36,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:36,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:36,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-29 08:03:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:36,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1121 [2020-10-29 08:03:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:36,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:36,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:36,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:36,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:03:36,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:36,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:03:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:36,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:36,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1231 [2020-10-29 08:03:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:36,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:36,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:36,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:03:36,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:36,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:03:36,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:36,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:36,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:03:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:36,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1369 [2020-10-29 08:03:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:36,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:36,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:36,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:03:36,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:36,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:03:36,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:36,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:03:36,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:36,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:36,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1440 [2020-10-29 08:03:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:36,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:36,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:36,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-29 08:03:36,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:36,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 08:03:36,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:36,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-29 08:03:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:36,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:36,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:03:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:36,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:36,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:38,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 1218 proven. 497 refuted. 0 times theorem prover too weak. 4254 trivial. 0 not checked. [2020-10-29 08:03:38,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315330194] [2020-10-29 08:03:38,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:38,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:38,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055990810] [2020-10-29 08:03:38,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:38,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:38,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:38,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:38,430 INFO L87 Difference]: Start difference. First operand 21153 states and 22144 transitions. Second operand 7 states.