/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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:07:30,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:07:30,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:07:30,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:07:30,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:07:30,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:07:30,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:07:30,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:07:30,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:07:30,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:07:30,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:07:30,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:07:30,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:07:30,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:07:30,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:07:30,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:07:30,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:07:30,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:07:30,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:07:30,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:07:30,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:07:30,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:07:30,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:07:30,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:07:30,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:07:30,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:07:30,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:07:30,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:07:30,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:07:30,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:07:30,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:07:30,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:07:30,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:07:30,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:07:30,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:07:30,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:07:30,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:07:30,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:07:30,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:07:30,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:07:30,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:07:30,912 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 08:07:30,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:07:30,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:07:30,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:07:30,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:07:30,945 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:07:30,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:07:30,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:07:30,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:07:30,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:07:30,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:07:30,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:07:30,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:07:30,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:07:30,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:07:30,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:07:30,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:07:30,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:07:30,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:07:30,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:07:30,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:07:30,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:07:30,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:07:30,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:07:30,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:07:30,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:07:30,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:07:30,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:07:30,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:07:30,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:07:30,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:07:31,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:07:31,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:07:31,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:07:31,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:07:31,411 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:07:31,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-29 08:07:31,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f597e8e0/762c70d7663b4223bef94485aa50318b/FLAGe2c955df4 [2020-10-29 08:07:32,341 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:07:32,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-29 08:07:32,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f597e8e0/762c70d7663b4223bef94485aa50318b/FLAGe2c955df4 [2020-10-29 08:07:32,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f597e8e0/762c70d7663b4223bef94485aa50318b [2020-10-29 08:07:32,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:07:32,525 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:07:32,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:07:32,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:07:32,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:07:32,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:07:32" (1/1) ... [2020-10-29 08:07:32,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6153b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:32, skipping insertion in model container [2020-10-29 08:07:32,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:07:32" (1/1) ... [2020-10-29 08:07:32,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:07:32,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:07:33,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:07:33,372 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:07:33,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:07:33,683 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:07:33,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33 WrapperNode [2020-10-29 08:07:33,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:07:33,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:07:33,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:07:33,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:07:33,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (1/1) ... [2020-10-29 08:07:33,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (1/1) ... [2020-10-29 08:07:33,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (1/1) ... [2020-10-29 08:07:33,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (1/1) ... [2020-10-29 08:07:33,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (1/1) ... [2020-10-29 08:07:33,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (1/1) ... [2020-10-29 08:07:33,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (1/1) ... [2020-10-29 08:07:33,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:07:33,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:07:33,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:07:33,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:07:33,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (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 08:07:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:07:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:07:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:07:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:07:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:07:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:07:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:07:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:07:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:07:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:07:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:07:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:07:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:07:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:07:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:07:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:07:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:07:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:07:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:07:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:07:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:07:36,547 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:07:36,548 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:07:36,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:07:36 BoogieIcfgContainer [2020-10-29 08:07:36,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:07:36,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:07:36,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:07:36,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:07:36,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:07:32" (1/3) ... [2020-10-29 08:07:36,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac6dc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:07:36, skipping insertion in model container [2020-10-29 08:07:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:33" (2/3) ... [2020-10-29 08:07:36,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac6dc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:07:36, skipping insertion in model container [2020-10-29 08:07:36,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:07:36" (3/3) ... [2020-10-29 08:07:36,568 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label51.c [2020-10-29 08:07:36,585 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:07:36,592 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:07:36,606 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:07:36,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:07:36,657 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:07:36,657 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:07:36,657 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:07:36,657 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:07:36,658 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:07:36,658 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:07:36,658 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:07:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:07:36,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 08:07:36,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:36,711 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] [2020-10-29 08:07:36,711 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:36,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:36,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1813812652, now seen corresponding path program 1 times [2020-10-29 08:07:36,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:36,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713495488] [2020-10-29 08:07:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:36,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:37,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:37,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 08:07:37,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:37,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-29 08:07:37,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:37,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:07:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:07:37,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:37,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:37,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:37,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:37,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:37,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:07:37,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:37,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:37,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:37,572 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 08:07:37,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713495488] [2020-10-29 08:07:37,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:07:37,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:07:37,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271424784] [2020-10-29 08:07:37,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:07:37,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:37,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:07:37,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:07:37,601 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 08:07:42,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:42,338 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-29 08:07:42,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:07:42,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-29 08:07:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:42,364 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 08:07:42,365 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 08:07:42,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 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 08:07:42,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 08:07:42,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-29 08:07:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-29 08:07:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-29 08:07:42,511 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 21 [2020-10-29 08:07:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:42,512 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-29 08:07:42,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:07:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-29 08:07:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-29 08:07:42,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:42,518 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:07:42,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:07:42,518 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:42,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:42,519 INFO L82 PathProgramCache]: Analyzing trace with hash 2026500173, now seen corresponding path program 1 times [2020-10-29 08:07:42,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:42,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720392163] [2020-10-29 08:07:42,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:42,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:43,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:43,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-29 08:07:43,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:43,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1253 [2020-10-29 08:07:43,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:43,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:43,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:43,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:43,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:07:43,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:07:43,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:43,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:43,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:43,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:43,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:43,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:07:43,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:43,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:07:44,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:44,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:44,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:07:44,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-29 08:07:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:44,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:07:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:07:44,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720392163] [2020-10-29 08:07:44,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:07:44,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:07:44,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614853745] [2020-10-29 08:07:44,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:44,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:44,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:44,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:44,409 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 7 states. [2020-10-29 08:07:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:49,586 INFO L93 Difference]: Finished difference Result 2081 states and 3078 transitions. [2020-10-29 08:07:49,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:07:49,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2020-10-29 08:07:49,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:49,603 INFO L225 Difference]: With dead ends: 2081 [2020-10-29 08:07:49,603 INFO L226 Difference]: Without dead ends: 1394 [2020-10-29 08:07:49,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:07:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-29 08:07:49,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1386. [2020-10-29 08:07:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2020-10-29 08:07:49,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1822 transitions. [2020-10-29 08:07:49,680 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1822 transitions. Word has length 97 [2020-10-29 08:07:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:49,682 INFO L481 AbstractCegarLoop]: Abstraction has 1386 states and 1822 transitions. [2020-10-29 08:07:49,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1822 transitions. [2020-10-29 08:07:49,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-29 08:07:49,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:49,698 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 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 08:07:49,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:07:49,698 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:49,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:49,703 INFO L82 PathProgramCache]: Analyzing trace with hash 310425694, now seen corresponding path program 1 times [2020-10-29 08:07:49,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:49,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636403795] [2020-10-29 08:07:49,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:49,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:49,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:50,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:50,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:51,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:53,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:53,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-29 08:07:53,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:07:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3945 [2020-10-29 08:07:53,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:53,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:07:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 08:07:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:53,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:53,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:53,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:53,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:07:53,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:53,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:53,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:07:54,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:54,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 08:07:54,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:07:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:54,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:07:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:54,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:54,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:07:54,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:54,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 08:07:54,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:54,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:54,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:07:54,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:07:54,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636403795] [2020-10-29 08:07:54,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:54,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:54,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639370208] [2020-10-29 08:07:54,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:54,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:54,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:54,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:54,321 INFO L87 Difference]: Start difference. First operand 1386 states and 1822 transitions. Second operand 7 states. [2020-10-29 08:07:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:59,821 INFO L93 Difference]: Finished difference Result 3498 states and 4793 transitions. [2020-10-29 08:07:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:07:59,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-10-29 08:07:59,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:59,847 INFO L225 Difference]: With dead ends: 3498 [2020-10-29 08:07:59,847 INFO L226 Difference]: Without dead ends: 2118 [2020-10-29 08:07:59,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 08:07:59,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-10-29 08:07:59,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 2087. [2020-10-29 08:07:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2087 states. [2020-10-29 08:07:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2696 transitions. [2020-10-29 08:07:59,951 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2696 transitions. Word has length 184 [2020-10-29 08:07:59,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:59,952 INFO L481 AbstractCegarLoop]: Abstraction has 2087 states and 2696 transitions. [2020-10-29 08:07:59,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:59,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2696 transitions. [2020-10-29 08:07:59,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-29 08:07:59,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:59,956 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:59,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:07:59,957 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:59,957 INFO L82 PathProgramCache]: Analyzing trace with hash 978837476, now seen corresponding path program 1 times [2020-10-29 08:07:59,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:59,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180410383] [2020-10-29 08:07:59,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:00,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:00,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:00,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:00,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:01,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:03,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-29 08:08:03,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:03,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3055 [2020-10-29 08:08:03,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:03,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:03,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 08:08:03,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:08:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-29 08:08:03,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:03,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:03,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:03,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:03,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:08:03,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:03,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:08:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:03,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:03,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:03,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:08:03,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:03,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-29 08:08:03,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:03,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:03,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:08:03,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:03,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:08:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:03,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:03,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:03,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:08:03,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-29 08:08:03,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:03,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:08:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 08:08:04,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180410383] [2020-10-29 08:08:04,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:04,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:04,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370074425] [2020-10-29 08:08:04,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:04,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:04,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:04,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:04,094 INFO L87 Difference]: Start difference. First operand 2087 states and 2696 transitions. Second operand 7 states. [2020-10-29 08:08:14,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:14,522 INFO L93 Difference]: Finished difference Result 5551 states and 7138 transitions. [2020-10-29 08:08:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:08:14,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 247 [2020-10-29 08:08:14,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:14,546 INFO L225 Difference]: With dead ends: 5551 [2020-10-29 08:08:14,546 INFO L226 Difference]: Without dead ends: 3470 [2020-10-29 08:08:14,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:08:14,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2020-10-29 08:08:14,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3120. [2020-10-29 08:08:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2020-10-29 08:08:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3980 transitions. [2020-10-29 08:08:14,686 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3980 transitions. Word has length 247 [2020-10-29 08:08:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:14,688 INFO L481 AbstractCegarLoop]: Abstraction has 3120 states and 3980 transitions. [2020-10-29 08:08:14,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3980 transitions. [2020-10-29 08:08:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-29 08:08:14,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:14,701 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:14,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:08:14,701 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:14,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:14,702 INFO L82 PathProgramCache]: Analyzing trace with hash 689400662, now seen corresponding path program 1 times [2020-10-29 08:08:14,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:14,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151673911] [2020-10-29 08:08:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:14,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:15,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:16,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:16,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:17,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:19,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 452 [2020-10-29 08:08:19,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 08:08:19,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-29 08:08:19,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:19,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:08:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:08:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:08:19,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:19,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:19,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:19,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:19,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:19,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:20,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:20,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:20,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:08:20,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:08:20,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:20,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:20,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:20,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:08:20,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:08:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:20,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:20,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:20,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:20,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:08:20,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-29 08:08:20,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:20,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:08:20,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:20,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:08:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:20,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:20,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:20,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:20,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 08:08:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:20,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:08:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:20,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-29 08:08:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:20,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:20,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:20,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:20,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:08:20,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:20,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:20,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:20,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:20,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 236 proven. 146 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2020-10-29 08:08:21,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151673911] [2020-10-29 08:08:21,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:21,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:08:21,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004923921] [2020-10-29 08:08:21,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:08:21,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:21,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:08:21,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:08:21,183 INFO L87 Difference]: Start difference. First operand 3120 states and 3980 transitions. Second operand 8 states. [2020-10-29 08:08:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:28,929 INFO L93 Difference]: Finished difference Result 7675 states and 10035 transitions. [2020-10-29 08:08:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:08:28,930 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 434 [2020-10-29 08:08:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:28,952 INFO L225 Difference]: With dead ends: 7675 [2020-10-29 08:08:28,952 INFO L226 Difference]: Without dead ends: 3840 [2020-10-29 08:08:28,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 08:08:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2020-10-29 08:08:29,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3140. [2020-10-29 08:08:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2020-10-29 08:08:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 3388 transitions. [2020-10-29 08:08:29,066 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 3388 transitions. Word has length 434 [2020-10-29 08:08:29,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:29,067 INFO L481 AbstractCegarLoop]: Abstraction has 3140 states and 3388 transitions. [2020-10-29 08:08:29,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:08:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 3388 transitions. [2020-10-29 08:08:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2020-10-29 08:08:29,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:29,082 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 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] [2020-10-29 08:08:29,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:08:29,083 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:29,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:29,084 INFO L82 PathProgramCache]: Analyzing trace with hash 623249407, now seen corresponding path program 1 times [2020-10-29 08:08:29,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:29,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792556291] [2020-10-29 08:08:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:29,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:29,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:29,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:31,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 567 [2020-10-29 08:08:34,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:34,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:08:34,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-29 08:08:34,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:08:34,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:34,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:34,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:08:34,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:08:34,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:08:34,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:08:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:34,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:08:34,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:08:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:34,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 08:08:34,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:34,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:08:34,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:08:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:34,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 08:08:34,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:34,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:08:34,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:35,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:08:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:35,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:35,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:35,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:08:35,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:35,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:35,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:35,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,573 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 398 proven. 71 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2020-10-29 08:08:35,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792556291] [2020-10-29 08:08:35,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:35,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:35,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858287012] [2020-10-29 08:08:35,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:35,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:35,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:35,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:35,578 INFO L87 Difference]: Start difference. First operand 3140 states and 3388 transitions. Second operand 7 states. [2020-10-29 08:08:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:39,867 INFO L93 Difference]: Finished difference Result 7666 states and 8387 transitions. [2020-10-29 08:08:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:08:39,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 547 [2020-10-29 08:08:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:39,891 INFO L225 Difference]: With dead ends: 7666 [2020-10-29 08:08:39,891 INFO L226 Difference]: Without dead ends: 4532 [2020-10-29 08:08:39,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2020-10-29 08:08:40,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4510. [2020-10-29 08:08:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4510 states. [2020-10-29 08:08:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 4811 transitions. [2020-10-29 08:08:40,013 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 4811 transitions. Word has length 547 [2020-10-29 08:08:40,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:40,014 INFO L481 AbstractCegarLoop]: Abstraction has 4510 states and 4811 transitions. [2020-10-29 08:08:40,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 4811 transitions. [2020-10-29 08:08:40,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2020-10-29 08:08:40,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:40,038 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:08:40,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:08:40,039 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:40,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:40,039 INFO L82 PathProgramCache]: Analyzing trace with hash 638258379, now seen corresponding path program 1 times [2020-10-29 08:08:40,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:40,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164478275] [2020-10-29 08:08:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:40,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:40,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:40,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:41,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 685 [2020-10-29 08:08:45,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:08:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 08:08:45,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:08:45,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:08:45,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:08:45,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:45,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:45,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:08:45,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:45,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:08:45,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:45,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:08:45,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-29 08:08:45,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:08:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:46,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:08:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:46,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:46,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:46,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:46,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:46,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:08:46,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:46,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:08:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:46,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:46,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:08:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:46,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:46,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:46,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:46,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:46,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 08:08:46,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:46,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:08:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:46,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:46,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:08:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:46,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:46,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:46,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:46,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:46,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:08:46,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:46,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:46,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-29 08:08:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:46,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:46,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:46,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:46,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:08:46,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:46,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 65 proven. 375 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-29 08:08:46,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164478275] [2020-10-29 08:08:46,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:46,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:46,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195274647] [2020-10-29 08:08:46,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:46,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:46,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:46,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:46,858 INFO L87 Difference]: Start difference. First operand 4510 states and 4811 transitions. Second operand 7 states. [2020-10-29 08:08:50,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:50,652 INFO L93 Difference]: Finished difference Result 9733 states and 10385 transitions. [2020-10-29 08:08:50,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:50,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 665 [2020-10-29 08:08:50,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:50,677 INFO L225 Difference]: With dead ends: 9733 [2020-10-29 08:08:50,678 INFO L226 Difference]: Without dead ends: 5229 [2020-10-29 08:08:50,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 08:08:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2020-10-29 08:08:50,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 5190. [2020-10-29 08:08:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5190 states. [2020-10-29 08:08:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5190 states to 5190 states and 5518 transitions. [2020-10-29 08:08:50,802 INFO L78 Accepts]: Start accepts. Automaton has 5190 states and 5518 transitions. Word has length 665 [2020-10-29 08:08:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:50,802 INFO L481 AbstractCegarLoop]: Abstraction has 5190 states and 5518 transitions. [2020-10-29 08:08:50,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5190 states and 5518 transitions. [2020-10-29 08:08:50,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2020-10-29 08:08:50,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:50,816 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:08:50,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:08:50,816 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:50,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:50,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1356006181, now seen corresponding path program 1 times [2020-10-29 08:08:50,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:50,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800846498] [2020-10-29 08:08:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:51,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:51,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:51,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:55,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:55,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 769 [2020-10-29 08:08:55,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-29 08:08:55,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:55,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-29 08:08:55,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:08:55,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:56,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:56,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:08:56,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-29 08:08:56,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 08:08:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-29 08:08:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-29 08:08:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-29 08:08:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:56,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 368 proven. 178 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2020-10-29 08:08:57,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800846498] [2020-10-29 08:08:57,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:57,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:08:57,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216713673] [2020-10-29 08:08:57,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:08:57,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:57,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:08:57,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:08:57,302 INFO L87 Difference]: Start difference. First operand 5190 states and 5518 transitions. Second operand 8 states. [2020-10-29 08:09:03,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:03,060 INFO L93 Difference]: Finished difference Result 12780 states and 13916 transitions. [2020-10-29 08:09:03,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:09:03,063 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 749 [2020-10-29 08:09:03,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:03,098 INFO L225 Difference]: With dead ends: 12780 [2020-10-29 08:09:03,098 INFO L226 Difference]: Without dead ends: 8272 [2020-10-29 08:09:03,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:09:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2020-10-29 08:09:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 7925. [2020-10-29 08:09:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7925 states. [2020-10-29 08:09:03,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7925 states to 7925 states and 8611 transitions. [2020-10-29 08:09:03,293 INFO L78 Accepts]: Start accepts. Automaton has 7925 states and 8611 transitions. Word has length 749 [2020-10-29 08:09:03,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:03,294 INFO L481 AbstractCegarLoop]: Abstraction has 7925 states and 8611 transitions. [2020-10-29 08:09:03,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:09:03,294 INFO L276 IsEmpty]: Start isEmpty. Operand 7925 states and 8611 transitions. [2020-10-29 08:09:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1278 [2020-10-29 08:09:03,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:03,326 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:09:03,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:09:03,326 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:03,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:03,327 INFO L82 PathProgramCache]: Analyzing trace with hash 221205665, now seen corresponding path program 1 times [2020-10-29 08:09:03,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:03,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668585886] [2020-10-29 08:09:03,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:03,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:03,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:04,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:05,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1303 [2020-10-29 08:09:08,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:09:08,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-29 08:09:08,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:09:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:09:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:09:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:08,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:08,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:09:08,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:09:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:08,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:09:09,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:09:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:09,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:09:09,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:09,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-29 08:09:09,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:09:09,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:09:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:09,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:09:09,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:09,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:09:09,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:09:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:09,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:09:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:09,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:09,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:09,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:09:09,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:09,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:09:09,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:09,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:10,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:09:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:10,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:10,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:10,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:10,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:10,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:09:10,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:10,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:10,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:10,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:09:10,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:10,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:10,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:09:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:10,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:10,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:10,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:10,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:10,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:09:10,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:10,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:10,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:10,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 08:09:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:10,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:10,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:09:10,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:10,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:10,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:10,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:10,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:10,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:10,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:09:10,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:10,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:10,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 352 proven. 701 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2020-10-29 08:09:11,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668585886] [2020-10-29 08:09:11,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:11,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:11,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484479947] [2020-10-29 08:09:11,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:11,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:11,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:11,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:11,835 INFO L87 Difference]: Start difference. First operand 7925 states and 8611 transitions. Second operand 7 states. [2020-10-29 08:09:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:15,328 INFO L93 Difference]: Finished difference Result 15519 states and 16892 transitions. [2020-10-29 08:09:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:09:15,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1277 [2020-10-29 08:09:15,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:15,360 INFO L225 Difference]: With dead ends: 15519 [2020-10-29 08:09:15,360 INFO L226 Difference]: Without dead ends: 8276 [2020-10-29 08:09:15,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:09:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8276 states. [2020-10-29 08:09:15,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8276 to 8268. [2020-10-29 08:09:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8268 states. [2020-10-29 08:09:15,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 8963 transitions. [2020-10-29 08:09:15,550 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 8963 transitions. Word has length 1277 [2020-10-29 08:09:15,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:15,551 INFO L481 AbstractCegarLoop]: Abstraction has 8268 states and 8963 transitions. [2020-10-29 08:09:15,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 8963 transitions. [2020-10-29 08:09:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2020-10-29 08:09:15,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:15,583 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2020-10-29 08:09:15,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:09:15,583 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:15,584 INFO L82 PathProgramCache]: Analyzing trace with hash -372277036, now seen corresponding path program 1 times [2020-10-29 08:09:15,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:15,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141343564] [2020-10-29 08:09:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:15,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:19,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:20,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1339 [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1017 [2020-10-29 08:09:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-29 08:09:20,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:21,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:09:21,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:21,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:09:21,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:21,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:09:21,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:09:21,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:09:21,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:09:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:09:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:09:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:09:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:09:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:22,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-29 08:09:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:22,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:22,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:22,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:22,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:09:22,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:22,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:22,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:09:22,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:22,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 08:09:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3455 backedges. 1108 proven. 2 refuted. 0 times theorem prover too weak. 2345 trivial. 0 not checked. [2020-10-29 08:09:23,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141343564] [2020-10-29 08:09:23,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:23,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:23,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988302859] [2020-10-29 08:09:23,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:23,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:23,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:23,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:23,690 INFO L87 Difference]: Start difference. First operand 8268 states and 8963 transitions. Second operand 7 states. [2020-10-29 08:09:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:27,781 INFO L93 Difference]: Finished difference Result 19599 states and 21603 transitions. [2020-10-29 08:09:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:09:27,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1311 [2020-10-29 08:09:27,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:27,820 INFO L225 Difference]: With dead ends: 19599 [2020-10-29 08:09:27,821 INFO L226 Difference]: Without dead ends: 12013 [2020-10-29 08:09:27,840 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 08:09:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12013 states. [2020-10-29 08:09:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12013 to 12013. [2020-10-29 08:09:28,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12013 states. [2020-10-29 08:09:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12013 states to 12013 states and 13051 transitions. [2020-10-29 08:09:28,084 INFO L78 Accepts]: Start accepts. Automaton has 12013 states and 13051 transitions. Word has length 1311 [2020-10-29 08:09:28,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:28,086 INFO L481 AbstractCegarLoop]: Abstraction has 12013 states and 13051 transitions. [2020-10-29 08:09:28,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 12013 states and 13051 transitions. [2020-10-29 08:09:28,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2020-10-29 08:09:28,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:28,124 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:28,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:09:28,124 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:28,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2075663073, now seen corresponding path program 1 times [2020-10-29 08:09:28,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:28,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182953311] [2020-10-29 08:09:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:28,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:28,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:33,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:33,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1452 [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5217 [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1130 [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-29 08:09:33,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:33,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:33,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:33,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:33,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:33,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:33,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:33,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:33,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:33,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:33,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:33,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:09:33,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:33,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:34,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:34,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:34,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:34,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:34,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:34,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:34,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:34,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:09:34,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:34,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:09:34,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:34,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:34,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:09:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:34,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:34,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:09:34,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:09:34,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:34,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:34,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:09:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:34,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:09:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:34,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1118 [2020-10-29 08:09:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:34,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:35,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:35,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:09:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1164 [2020-10-29 08:09:35,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:35,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:09:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-29 08:09:35,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:36,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:36,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:36,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:36,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:09:36,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:36,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:09:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 08:09:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3392 backedges. 1208 proven. 2 refuted. 0 times theorem prover too weak. 2182 trivial. 0 not checked. [2020-10-29 08:09:37,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182953311] [2020-10-29 08:09:37,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:37,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:37,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350776394] [2020-10-29 08:09:37,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:37,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:37,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:37,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:37,545 INFO L87 Difference]: Start difference. First operand 12013 states and 13051 transitions. Second operand 7 states. [2020-10-29 08:09:41,495 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 08:09:43,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:43,486 INFO L93 Difference]: Finished difference Result 24020 states and 26194 transitions. [2020-10-29 08:09:43,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:09:43,488 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1426 [2020-10-29 08:09:43,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:43,621 INFO L225 Difference]: With dead ends: 24020 [2020-10-29 08:09:43,621 INFO L226 Difference]: Without dead ends: 12689 [2020-10-29 08:09:43,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12689 states. [2020-10-29 08:09:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12689 to 12352. [2020-10-29 08:09:43,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12352 states. [2020-10-29 08:09:43,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12352 states to 12352 states and 13403 transitions. [2020-10-29 08:09:43,883 INFO L78 Accepts]: Start accepts. Automaton has 12352 states and 13403 transitions. Word has length 1426 [2020-10-29 08:09:43,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:43,884 INFO L481 AbstractCegarLoop]: Abstraction has 12352 states and 13403 transitions. [2020-10-29 08:09:43,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:43,884 INFO L276 IsEmpty]: Start isEmpty. Operand 12352 states and 13403 transitions. [2020-10-29 08:09:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1503 [2020-10-29 08:09:43,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:43,934 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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 08:09:43,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:09:43,934 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:43,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:43,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1865772284, now seen corresponding path program 1 times [2020-10-29 08:09:43,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:43,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285256337] [2020-10-29 08:09:43,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:44,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:44,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:45,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:46,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:49,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:49,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1532 [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 905 [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 303 [2020-10-29 08:09:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:49,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:49,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:49,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:49,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:49,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:49,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:09:49,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:49,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:49,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:49,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:49,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:49,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:49,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:49,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:49,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:49,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:49,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:09:49,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:49,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:49,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:49,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:49,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:49,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:49,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:49,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:09:49,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:49,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:49,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:50,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:50,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:50,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:09:50,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:50,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:09:50,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:50,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:50,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:50,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:50,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:50,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:50,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:09:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:50,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:50,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:50,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:50,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:09:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:50,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:50,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:50,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:50,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:50,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:09:50,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:50,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 08:09:50,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:50,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:09:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:50,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:50,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:50,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-29 08:09:50,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:50,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-29 08:09:50,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:50,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:09:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 304 [2020-10-29 08:09:50,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:50,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:50,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:50,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:50,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 08:09:50,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:50,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:09:50,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:50,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:09:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:09:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:50,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1194 [2020-10-29 08:09:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:50,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:51,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:51,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:51,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:51,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:51,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:51,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:51,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:09:51,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:51,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:51,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 1020 proven. 293 refuted. 0 times theorem prover too weak. 2593 trivial. 0 not checked. [2020-10-29 08:09:52,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285256337] [2020-10-29 08:09:52,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:52,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:09:52,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195882797] [2020-10-29 08:09:52,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:09:52,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:52,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:09:52,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:09:52,405 INFO L87 Difference]: Start difference. First operand 12352 states and 13403 transitions. Second operand 8 states. [2020-10-29 08:09:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:56,138 INFO L93 Difference]: Finished difference Result 24033 states and 26122 transitions. [2020-10-29 08:09:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:09:56,139 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1502 [2020-10-29 08:09:56,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:56,175 INFO L225 Difference]: With dead ends: 24033 [2020-10-29 08:09:56,176 INFO L226 Difference]: Without dead ends: 12363 [2020-10-29 08:09:56,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 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 08:09:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12363 states. [2020-10-29 08:09:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12363 to 12355. [2020-10-29 08:09:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12355 states. [2020-10-29 08:09:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12355 states to 12355 states and 13360 transitions. [2020-10-29 08:09:56,411 INFO L78 Accepts]: Start accepts. Automaton has 12355 states and 13360 transitions. Word has length 1502 [2020-10-29 08:09:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:56,412 INFO L481 AbstractCegarLoop]: Abstraction has 12355 states and 13360 transitions. [2020-10-29 08:09:56,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:09:56,412 INFO L276 IsEmpty]: Start isEmpty. Operand 12355 states and 13360 transitions. [2020-10-29 08:09:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1556 [2020-10-29 08:09:56,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:56,458 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-29 08:09:56,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:09:56,459 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:56,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:56,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1431928203, now seen corresponding path program 1 times [2020-10-29 08:09:56,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:56,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028495832] [2020-10-29 08:09:56,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:56,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:57,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1581 [2020-10-29 08:10:02,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:10:02,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5734 [2020-10-29 08:10:02,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 08:10:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1016 [2020-10-29 08:10:02,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 540 [2020-10-29 08:10:02,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:02,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:02,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:02,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:02,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:02,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:02,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:02,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:02,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:10:02,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:02,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:02,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:02,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:02,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:10:02,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:02,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:10:02,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:02,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:02,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:02,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:10:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:03,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:10:03,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:03,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:10:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:10:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:10:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-29 08:10:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:10:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:10:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:04,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:04,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-29 08:10:04,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:10:04,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-29 08:10:04,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:04,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-29 08:10:04,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:04,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1247 [2020-10-29 08:10:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:04,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:04,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:05,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:05,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:05,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:10:05,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1382 [2020-10-29 08:10:05,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:05,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:10:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-29 08:10:05,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:05,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:05,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:05,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:05,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:05,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:05,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:10:05,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:05,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:10:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 08:10:05,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3927 backedges. 1356 proven. 4 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2020-10-29 08:10:07,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028495832] [2020-10-29 08:10:07,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:07,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:07,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700772552] [2020-10-29 08:10:07,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:07,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:07,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:07,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:07,595 INFO L87 Difference]: Start difference. First operand 12355 states and 13360 transitions. Second operand 7 states. [2020-10-29 08:10:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:12,137 INFO L93 Difference]: Finished difference Result 24373 states and 26478 transitions. [2020-10-29 08:10:12,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:10:12,139 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1555 [2020-10-29 08:10:12,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:12,182 INFO L225 Difference]: With dead ends: 24373 [2020-10-29 08:10:12,182 INFO L226 Difference]: Without dead ends: 12700 [2020-10-29 08:10:12,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:10:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12700 states. [2020-10-29 08:10:12,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12700 to 12694. [2020-10-29 08:10:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12694 states. [2020-10-29 08:10:12,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12694 states to 12694 states and 13676 transitions. [2020-10-29 08:10:12,431 INFO L78 Accepts]: Start accepts. Automaton has 12694 states and 13676 transitions. Word has length 1555 [2020-10-29 08:10:12,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:12,433 INFO L481 AbstractCegarLoop]: Abstraction has 12694 states and 13676 transitions. [2020-10-29 08:10:12,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:12,433 INFO L276 IsEmpty]: Start isEmpty. Operand 12694 states and 13676 transitions. [2020-10-29 08:10:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1580 [2020-10-29 08:10:12,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:12,497 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:12,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:10:12,497 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:12,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:12,498 INFO L82 PathProgramCache]: Analyzing trace with hash 235777627, now seen corresponding path program 1 times [2020-10-29 08:10:12,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:12,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487411742] [2020-10-29 08:10:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:12,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:13,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:17,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1605 [2020-10-29 08:10:17,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:10:17,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 08:10:17,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:17,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:17,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:10:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:10:17,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:18,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:10:18,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:18,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:18,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:18,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:10:18,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:10:18,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:18,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:10:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:18,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:10:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:10:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:10:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:10:18,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:19,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:10:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:19,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:19,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:19,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-29 08:10:19,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-29 08:10:19,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:19,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-29 08:10:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:19,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:19,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1271 [2020-10-29 08:10:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:20,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:20,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:20,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:20,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:20,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3975 backedges. 851 proven. 534 refuted. 0 times theorem prover too weak. 2590 trivial. 0 not checked. [2020-10-29 08:10:22,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487411742] [2020-10-29 08:10:22,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:22,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:22,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573206058] [2020-10-29 08:10:22,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:22,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:22,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:22,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:22,023 INFO L87 Difference]: Start difference. First operand 12694 states and 13676 transitions. Second operand 7 states. [2020-10-29 08:10:26,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:26,358 INFO L93 Difference]: Finished difference Result 24712 states and 26664 transitions. [2020-10-29 08:10:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:10:26,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1579 [2020-10-29 08:10:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:26,394 INFO L225 Difference]: With dead ends: 24712 [2020-10-29 08:10:26,394 INFO L226 Difference]: Without dead ends: 12700 [2020-10-29 08:10:26,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 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 08:10:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12700 states. [2020-10-29 08:10:26,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12700 to 12694. [2020-10-29 08:10:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12694 states. [2020-10-29 08:10:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12694 states to 12694 states and 13672 transitions. [2020-10-29 08:10:26,634 INFO L78 Accepts]: Start accepts. Automaton has 12694 states and 13672 transitions. Word has length 1579 [2020-10-29 08:10:26,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:26,636 INFO L481 AbstractCegarLoop]: Abstraction has 12694 states and 13672 transitions. [2020-10-29 08:10:26,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand 12694 states and 13672 transitions. [2020-10-29 08:10:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1598 [2020-10-29 08:10:26,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:26,677 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:26,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:10:26,677 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:26,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:26,678 INFO L82 PathProgramCache]: Analyzing trace with hash 670098190, now seen corresponding path program 1 times [2020-10-29 08:10:26,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:26,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490549057] [2020-10-29 08:10:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:27,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:27,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:27,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:28,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1625 [2020-10-29 08:10:32,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:10:32,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-29 08:10:32,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:32,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 761 [2020-10-29 08:10:32,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:10:32,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:10:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:32,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:10:32,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:10:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:10:32,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:10:32,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:10:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:10:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:10:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:32,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:32,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:10:32,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:33,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1024 [2020-10-29 08:10:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:33,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:33,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:33,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-29 08:10:33,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:33,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:10:33,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:33,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-29 08:10:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:33,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1289 [2020-10-29 08:10:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:33,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:33,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:33,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:33,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:33,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-29 08:10:33,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:33,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:10:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:33,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:33,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:33,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:33,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:33,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:33,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:33,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 892 proven. 534 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2020-10-29 08:10:35,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490549057] [2020-10-29 08:10:35,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:35,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:35,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001767858] [2020-10-29 08:10:35,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:35,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:35,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:35,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:35,736 INFO L87 Difference]: Start difference. First operand 12694 states and 13672 transitions. Second operand 7 states. [2020-10-29 08:10:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:39,956 INFO L93 Difference]: Finished difference Result 24716 states and 26669 transitions. [2020-10-29 08:10:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:10:39,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1597 [2020-10-29 08:10:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:39,989 INFO L225 Difference]: With dead ends: 24716 [2020-10-29 08:10:39,989 INFO L226 Difference]: Without dead ends: 12704 [2020-10-29 08:10:40,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:10:40,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12704 states. [2020-10-29 08:10:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12704 to 12694. [2020-10-29 08:10:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12694 states. [2020-10-29 08:10:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12694 states to 12694 states and 13658 transitions. [2020-10-29 08:10:40,227 INFO L78 Accepts]: Start accepts. Automaton has 12694 states and 13658 transitions. Word has length 1597 [2020-10-29 08:10:40,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:40,228 INFO L481 AbstractCegarLoop]: Abstraction has 12694 states and 13658 transitions. [2020-10-29 08:10:40,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:40,228 INFO L276 IsEmpty]: Start isEmpty. Operand 12694 states and 13658 transitions. [2020-10-29 08:10:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1740 [2020-10-29 08:10:40,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:40,279 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:40,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:10:40,279 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:40,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:40,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1396591689, now seen corresponding path program 1 times [2020-10-29 08:10:40,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:40,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297249338] [2020-10-29 08:10:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:40,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:41,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:41,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:41,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:45,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:45,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1769 [2020-10-29 08:10:45,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:10:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 08:10:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:45,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:10:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 761 [2020-10-29 08:10:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-29 08:10:45,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:45,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:45,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:45,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:45,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:45,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:45,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:45,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:45,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:45,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:45,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:10:45,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:45,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:45,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:45,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:10:46,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:10:46,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:46,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:46,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:46,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:10:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:46,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:46,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:10:46,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:46,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:10:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:46,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:10:46,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:10:46,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:46,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:10:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:46,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:10:46,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:10:46,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:46,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:46,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:10:46,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:46,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:10:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:46,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:46,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:46,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:10:46,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:46,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:10:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:46,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:10:46,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-29 08:10:46,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:10:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:47,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1166 [2020-10-29 08:10:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:47,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:47,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:47,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-29 08:10:47,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:47,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:10:47,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:47,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-29 08:10:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:47,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1431 [2020-10-29 08:10:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:47,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:47,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:47,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:47,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:10:47,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:47,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:10:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:47,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:47,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:47,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5312 backedges. 1530 proven. 947 refuted. 0 times theorem prover too weak. 2835 trivial. 0 not checked. [2020-10-29 08:10:50,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297249338] [2020-10-29 08:10:50,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:50,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:10:50,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067070694] [2020-10-29 08:10:50,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:10:50,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:50,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:10:50,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:10:50,665 INFO L87 Difference]: Start difference. First operand 12694 states and 13658 transitions. Second operand 8 states. [2020-10-29 08:10:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:56,904 INFO L93 Difference]: Finished difference Result 25741 states and 27769 transitions. [2020-10-29 08:10:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:10:56,906 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1739 [2020-10-29 08:10:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:56,943 INFO L225 Difference]: With dead ends: 25741 [2020-10-29 08:10:56,944 INFO L226 Difference]: Without dead ends: 13729 [2020-10-29 08:10:56,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:10:56,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13729 states. [2020-10-29 08:10:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13729 to 13711. [2020-10-29 08:10:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13711 states. [2020-10-29 08:10:57,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13711 states to 13711 states and 14706 transitions. [2020-10-29 08:10:57,226 INFO L78 Accepts]: Start accepts. Automaton has 13711 states and 14706 transitions. Word has length 1739 [2020-10-29 08:10:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:57,228 INFO L481 AbstractCegarLoop]: Abstraction has 13711 states and 14706 transitions. [2020-10-29 08:10:57,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:10:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 13711 states and 14706 transitions. [2020-10-29 08:10:57,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1756 [2020-10-29 08:10:57,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:57,276 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 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, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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, 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] [2020-10-29 08:10:57,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:10:57,276 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:57,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:57,277 INFO L82 PathProgramCache]: Analyzing trace with hash 351772451, now seen corresponding path program 1 times [2020-10-29 08:10:57,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:57,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959232153] [2020-10-29 08:10:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:57,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking...