/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_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:03:08,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:03:08,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:03:08,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:03:08,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:03:08,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:03:08,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:03:08,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:03:08,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:03:08,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:03:08,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:03:08,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:03:08,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:03:08,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:03:08,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:03:08,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:03:08,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:03:08,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:03:08,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:03:08,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:03:08,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:03:08,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:03:08,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:03:08,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:03:08,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:03:08,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:03:08,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:03:08,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:03:08,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:03:08,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:03:08,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:03:08,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:03:08,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:03:08,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:03:08,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:03:08,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:03:08,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:03:08,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:03:08,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:03:08,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:03:08,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:03:08,395 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 08:03:08,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:03:08,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:03:08,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:03:08,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:03:08,437 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:03:08,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:03:08,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:03:08,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:03:08,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:03:08,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:03:08,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:03:08,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:03:08,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:03:08,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:03:08,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:03:08,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:03:08,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:03:08,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:03:08,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:03:08,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:03:08,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:03:08,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:03:08,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:03:08,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:03:08,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:03:08,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:03:08,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:03:08,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:03:08,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:03:08,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:03:08,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:03:08,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:03:08,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:03:08,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:03:08,863 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:03:08,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label33.c [2020-10-29 08:03:08,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f610b19a1/c943f6d9d4a34f80af1a4d860ca8cba8/FLAG5e375801a [2020-10-29 08:03:09,916 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:03:09,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label33.c [2020-10-29 08:03:09,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f610b19a1/c943f6d9d4a34f80af1a4d860ca8cba8/FLAG5e375801a [2020-10-29 08:03:09,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f610b19a1/c943f6d9d4a34f80af1a4d860ca8cba8 [2020-10-29 08:03:09,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:03:09,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:03:09,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:03:09,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:03:10,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:03:10,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:03:09" (1/1) ... [2020-10-29 08:03:10,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d606d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:10, skipping insertion in model container [2020-10-29 08:03:10,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:03:09" (1/1) ... [2020-10-29 08:03:10,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:03:10,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:03:10,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:03:10,841 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:03:11,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:03:11,146 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:03:11,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11 WrapperNode [2020-10-29 08:03:11,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:03:11,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:03:11,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:03:11,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:03:11,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (1/1) ... [2020-10-29 08:03:11,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (1/1) ... [2020-10-29 08:03:11,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (1/1) ... [2020-10-29 08:03:11,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (1/1) ... [2020-10-29 08:03:11,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (1/1) ... [2020-10-29 08:03:11,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (1/1) ... [2020-10-29 08:03:11,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (1/1) ... [2020-10-29 08:03:11,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:03:11,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:03:11,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:03:11,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:03:11,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (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 08:03:11,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:03:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:03:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:03:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:03:11,480 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:03:11,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:03:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:03:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:03:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:03:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:03:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:03:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:03:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:03:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:03:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:03:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:03:14,143 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:03:14,143 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:03:14,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:03:14 BoogieIcfgContainer [2020-10-29 08:03:14,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:03:14,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:03:14,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:03:14,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:03:14,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:03:09" (1/3) ... [2020-10-29 08:03:14,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206c216e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:03:14, skipping insertion in model container [2020-10-29 08:03:14,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:03:11" (2/3) ... [2020-10-29 08:03:14,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206c216e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:03:14, skipping insertion in model container [2020-10-29 08:03:14,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:03:14" (3/3) ... [2020-10-29 08:03:14,156 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label33.c [2020-10-29 08:03:14,170 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:03:14,176 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:03:14,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:03:14,222 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:03:14,223 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:03:14,223 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:03:14,223 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:03:14,223 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:03:14,223 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:03:14,223 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:03:14,223 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:03:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:03:14,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-29 08:03:14,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:14,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:14,262 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:14,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1527455644, now seen corresponding path program 1 times [2020-10-29 08:03:14,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:14,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417055999] [2020-10-29 08:03:14,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:14,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:15,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:15,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 08:03:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:15,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 725 [2020-10-29 08:03:15,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:15,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 08:03:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 08:03:15,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:15,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:15,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:15,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:15,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:15,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:03:15,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:15,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:15,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:15,398 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 08:03:15,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417055999] [2020-10-29 08:03:15,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:03:15,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 08:03:15,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209342385] [2020-10-29 08:03:15,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:03:15,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:15,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:03:15,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:03:15,427 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 5 states. [2020-10-29 08:03:22,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:22,691 INFO L93 Difference]: Finished difference Result 1520 states and 2855 transitions. [2020-10-29 08:03:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:03:22,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-29 08:03:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:22,728 INFO L225 Difference]: With dead ends: 1520 [2020-10-29 08:03:22,728 INFO L226 Difference]: Without dead ends: 1039 [2020-10-29 08:03:22,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-29 08:03:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1035. [2020-10-29 08:03:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-10-29 08:03:22,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1486 transitions. [2020-10-29 08:03:22,888 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1486 transitions. Word has length 34 [2020-10-29 08:03:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:22,890 INFO L481 AbstractCegarLoop]: Abstraction has 1035 states and 1486 transitions. [2020-10-29 08:03:22,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:03:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1486 transitions. [2020-10-29 08:03:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 08:03:22,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:22,899 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:22,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:03:22,900 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:22,901 INFO L82 PathProgramCache]: Analyzing trace with hash -2088180740, now seen corresponding path program 1 times [2020-10-29 08:03:22,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:22,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862387958] [2020-10-29 08:03:22,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:22,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:23,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:24,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:24,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 08:03:24,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:24,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-10-29 08:03:24,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:24,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:24,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:24,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:24,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:03:24,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:24,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:24,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:24,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:24,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:24,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:03:24,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:24,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:24,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:24,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:03:24,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:24,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:24,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:24,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:03:24,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:24,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 08:03:24,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:24,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:03:24,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:03:24,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862387958] [2020-10-29 08:03:24,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:03:24,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:03:24,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920348565] [2020-10-29 08:03:24,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:03:24,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:24,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:03:24,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:03:24,483 INFO L87 Difference]: Start difference. First operand 1035 states and 1486 transitions. Second operand 8 states. [2020-10-29 08:03:32,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:32,471 INFO L93 Difference]: Finished difference Result 4148 states and 6100 transitions. [2020-10-29 08:03:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:03:32,472 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-10-29 08:03:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:32,498 INFO L225 Difference]: With dead ends: 4148 [2020-10-29 08:03:32,499 INFO L226 Difference]: Without dead ends: 3119 [2020-10-29 08:03:32,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:03:32,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2020-10-29 08:03:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3103. [2020-10-29 08:03:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3103 states. [2020-10-29 08:03:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4164 transitions. [2020-10-29 08:03:32,656 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4164 transitions. Word has length 110 [2020-10-29 08:03:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:32,657 INFO L481 AbstractCegarLoop]: Abstraction has 3103 states and 4164 transitions. [2020-10-29 08:03:32,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:03:32,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4164 transitions. [2020-10-29 08:03:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-29 08:03:32,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:32,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:03:32,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:03:32,670 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:32,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1103548810, now seen corresponding path program 1 times [2020-10-29 08:03:32,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:32,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166205654] [2020-10-29 08:03:32,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:32,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:32,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:32,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:33,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:33,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:35,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-29 08:03:37,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:03:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4515 [2020-10-29 08:03:37,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:03:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 08:03:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:03:37,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:37,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:37,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:37,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:03:37,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:37,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:37,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:37,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:03:37,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 08:03:37,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:03:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:37,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:03:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:37,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:03:37,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:03:37,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:03:37,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:03:37,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166205654] [2020-10-29 08:03:37,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:37,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:37,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615515048] [2020-10-29 08:03:37,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:37,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:37,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:37,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:37,907 INFO L87 Difference]: Start difference. First operand 3103 states and 4164 transitions. Second operand 7 states. [2020-10-29 08:03:43,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:43,292 INFO L93 Difference]: Finished difference Result 7290 states and 10191 transitions. [2020-10-29 08:03:43,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:03:43,292 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-10-29 08:03:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:43,327 INFO L225 Difference]: With dead ends: 7290 [2020-10-29 08:03:43,327 INFO L226 Difference]: Without dead ends: 4193 [2020-10-29 08:03:43,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2020-10-29 08:03:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3808. [2020-10-29 08:03:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-29 08:03:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5133 transitions. [2020-10-29 08:03:43,481 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5133 transitions. Word has length 197 [2020-10-29 08:03:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:43,483 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 5133 transitions. [2020-10-29 08:03:43,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5133 transitions. [2020-10-29 08:03:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-29 08:03:43,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:43,493 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:43,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:03:43,494 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:43,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:43,494 INFO L82 PathProgramCache]: Analyzing trace with hash -524318454, now seen corresponding path program 1 times [2020-10-29 08:03:43,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:43,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846811297] [2020-10-29 08:03:43,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:43,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:44,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:44,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:47,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:47,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:47,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-10-29 08:03:47,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:03:47,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4206 [2020-10-29 08:03:47,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:47,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:03:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:03:47,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:03:47,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:47,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:47,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:47,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:47,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:03:47,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:47,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:47,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:47,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:47,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:48,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:48,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:03:48,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:48,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:03:48,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:48,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:03:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:48,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:03:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:48,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:48,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:48,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:48,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:03:48,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-29 08:03:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:48,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:03:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:48,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:03:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:48,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:48,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:48,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:48,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:48,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-29 08:03:48,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:48,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:03:48,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 254 proven. 114 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 08:03:49,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846811297] [2020-10-29 08:03:49,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:49,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:03:49,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842749742] [2020-10-29 08:03:49,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:03:49,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:49,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:03:49,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:03:49,154 INFO L87 Difference]: Start difference. First operand 3808 states and 5133 transitions. Second operand 8 states. [2020-10-29 08:03:56,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:56,672 INFO L93 Difference]: Finished difference Result 10736 states and 14609 transitions. [2020-10-29 08:03:56,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:03:56,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 375 [2020-10-29 08:03:56,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:56,708 INFO L225 Difference]: With dead ends: 10736 [2020-10-29 08:03:56,708 INFO L226 Difference]: Without dead ends: 5867 [2020-10-29 08:03:56,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:03:56,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5867 states. [2020-10-29 08:03:56,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5867 to 4837. [2020-10-29 08:03:56,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4837 states. [2020-10-29 08:03:56,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4837 states to 4837 states and 5452 transitions. [2020-10-29 08:03:56,850 INFO L78 Accepts]: Start accepts. Automaton has 4837 states and 5452 transitions. Word has length 375 [2020-10-29 08:03:56,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:56,850 INFO L481 AbstractCegarLoop]: Abstraction has 4837 states and 5452 transitions. [2020-10-29 08:03:56,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:03:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4837 states and 5452 transitions. [2020-10-29 08:03:56,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2020-10-29 08:03:56,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:56,867 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 08:03:56,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:03:56,868 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:56,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:56,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1514032340, now seen corresponding path program 1 times [2020-10-29 08:03:56,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:56,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191686597] [2020-10-29 08:03:56,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:56,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:57,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:59,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:01,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:01,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 580 [2020-10-29 08:04:01,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:01,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-29 08:04:01,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:01,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:01,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:01,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:04:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:04:01,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:02,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:02,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:02,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:02,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:02,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:02,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:04:02,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:02,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:02,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:02,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:02,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:02,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:02,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:02,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:02,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:02,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:04:02,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:02,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 08:04:02,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:02,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:02,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:02,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:02,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:04:02,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:02,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:04:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:02,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:02,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:02,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:02,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-29 08:04:02,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:02,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:02,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:02,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:02,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:04:02,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:02,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:04:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:02,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:02,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:02,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:02,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:04:02,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:02,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:02,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:02,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:04:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:02,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:02,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:02,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:02,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 08:04:02,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:02,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:02,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:02,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:04:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:02,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:02,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:02,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:04:02,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:02,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:04:02,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:02,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:04:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 239 proven. 290 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-10-29 08:04:03,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191686597] [2020-10-29 08:04:03,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:03,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:04:03,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069379074] [2020-10-29 08:04:03,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:04:03,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:03,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:04:03,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:04:03,397 INFO L87 Difference]: Start difference. First operand 4837 states and 5452 transitions. Second operand 8 states. [2020-10-29 08:04:07,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:07,443 INFO L93 Difference]: Finished difference Result 11404 states and 12980 transitions. [2020-10-29 08:04:07,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:07,446 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 560 [2020-10-29 08:04:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:07,481 INFO L225 Difference]: With dead ends: 11404 [2020-10-29 08:04:07,481 INFO L226 Difference]: Without dead ends: 6573 [2020-10-29 08:04:07,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:04:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6573 states. [2020-10-29 08:04:07,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6573 to 5883. [2020-10-29 08:04:07,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5883 states. [2020-10-29 08:04:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 6584 transitions. [2020-10-29 08:04:07,659 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 6584 transitions. Word has length 560 [2020-10-29 08:04:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:07,660 INFO L481 AbstractCegarLoop]: Abstraction has 5883 states and 6584 transitions. [2020-10-29 08:04:07,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:04:07,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 6584 transitions. [2020-10-29 08:04:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2020-10-29 08:04:07,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:07,710 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:07,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:04:07,711 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:07,712 INFO L82 PathProgramCache]: Analyzing trace with hash -987830124, now seen corresponding path program 1 times [2020-10-29 08:04:07,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:07,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059036780] [2020-10-29 08:04:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:07,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:08,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:08,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:10,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:12,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:12,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 916 [2020-10-29 08:04:12,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:04:12,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-29 08:04:12,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:12,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:12,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:04:12,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:04:12,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:04:12,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:04:13,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:13,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:13,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:13,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:13,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:04:13,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:13,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:04:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:13,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:13,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:13,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:13,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:04:13,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:13,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-10-29 08:04:13,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:13,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:13,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:13,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:13,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:04:13,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:13,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:04:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:13,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:13,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:13,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:04:13,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:13,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:04:13,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:13,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:13,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:13,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:04:13,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:13,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:13,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:04:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:14,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:14,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:14,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:14,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:14,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:04:14,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:14,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:14,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:14,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:14,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-29 08:04:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:14,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:14,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:14,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:14,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:04:14,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:14,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:04:14,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:14,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:14,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-29 08:04:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:14,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:14,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:14,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 08:04:14,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:14,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:14,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2020-10-29 08:04:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:14,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:14,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:14,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:04:14,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:14,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 08:04:14,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:14,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:04:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:15,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 156 proven. 586 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2020-10-29 08:04:15,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059036780] [2020-10-29 08:04:15,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:15,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:15,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430838609] [2020-10-29 08:04:15,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:15,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:15,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:15,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:15,379 INFO L87 Difference]: Start difference. First operand 5883 states and 6584 transitions. Second operand 7 states. [2020-10-29 08:04:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:19,167 INFO L93 Difference]: Finished difference Result 12468 states and 13926 transitions. [2020-10-29 08:04:19,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:19,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 894 [2020-10-29 08:04:19,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:19,206 INFO L225 Difference]: With dead ends: 12468 [2020-10-29 08:04:19,207 INFO L226 Difference]: Without dead ends: 6591 [2020-10-29 08:04:19,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:04:19,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6591 states. [2020-10-29 08:04:19,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6591 to 6559. [2020-10-29 08:04:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6559 states. [2020-10-29 08:04:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 7276 transitions. [2020-10-29 08:04:19,398 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 7276 transitions. Word has length 894 [2020-10-29 08:04:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:19,399 INFO L481 AbstractCegarLoop]: Abstraction has 6559 states and 7276 transitions. [2020-10-29 08:04:19,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:19,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 7276 transitions. [2020-10-29 08:04:19,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2020-10-29 08:04:19,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:19,428 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:19,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:04:19,429 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:19,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:19,430 INFO L82 PathProgramCache]: Analyzing trace with hash 702236642, now seen corresponding path program 1 times [2020-10-29 08:04:19,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:19,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762218917] [2020-10-29 08:04:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:19,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:24,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1165 [2020-10-29 08:04:24,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:04:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 08:04:24,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:24,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:04:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:04:24,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:04:24,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:24,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:24,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:24,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:24,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:24,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:24,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:04:24,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:24,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:04:24,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:24,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:24,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:25,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:25,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:25,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:04:25,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:04:25,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-29 08:04:25,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:25,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:04:25,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:04:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:25,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:25,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:25,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:04:25,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:25,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-29 08:04:25,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:25,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:25,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:04:25,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:26,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:04:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:26,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:26,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:26,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:04:26,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:26,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:04:26,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:26,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:04:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:26,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:04:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:26,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:26,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:26,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:26,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:04:26,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:26,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:26,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:26,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-10-29 08:04:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:26,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:26,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:26,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:26,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:26,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:04:26,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:26,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:26,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:26,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:04:26,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:26,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:26,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 830 [2020-10-29 08:04:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:26,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:26,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:26,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:26,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:04:26,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:26,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:26,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:26,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-29 08:04:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:26,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:26,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:04:26,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:04:26,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:26,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:04:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:26,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 443 proven. 598 refuted. 0 times theorem prover too weak. 1588 trivial. 0 not checked. [2020-10-29 08:04:27,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762218917] [2020-10-29 08:04:27,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:27,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:04:27,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154258807] [2020-10-29 08:04:27,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:04:27,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:27,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:04:27,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:04:27,936 INFO L87 Difference]: Start difference. First operand 6559 states and 7276 transitions. Second operand 8 states. [2020-10-29 08:04:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:31,333 INFO L93 Difference]: Finished difference Result 12789 states and 14230 transitions. [2020-10-29 08:04:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:04:31,334 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1141 [2020-10-29 08:04:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:31,354 INFO L225 Difference]: With dead ends: 12789 [2020-10-29 08:04:31,355 INFO L226 Difference]: Without dead ends: 6912 [2020-10-29 08:04:31,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 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 08:04:31,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2020-10-29 08:04:31,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 6559. [2020-10-29 08:04:31,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6559 states. [2020-10-29 08:04:31,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 7265 transitions. [2020-10-29 08:04:31,504 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 7265 transitions. Word has length 1141 [2020-10-29 08:04:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:31,505 INFO L481 AbstractCegarLoop]: Abstraction has 6559 states and 7265 transitions. [2020-10-29 08:04:31,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:04:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 7265 transitions. [2020-10-29 08:04:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2020-10-29 08:04:31,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:31,530 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:31,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:04:31,531 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:31,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:31,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1468134282, now seen corresponding path program 1 times [2020-10-29 08:04:31,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:31,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759290052] [2020-10-29 08:04:31,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:31,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:32,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:32,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:36,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:36,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1201 [2020-10-29 08:04:36,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-29 08:04:36,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:36,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 732 [2020-10-29 08:04:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:04:36,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:36,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:36,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:36,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:36,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:36,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:36,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:04:36,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:36,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:36,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:37,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:37,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:37,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:37,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 08:04:37,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:37,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:37,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:37,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:37,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:04:37,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:04:37,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:37,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:37,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:37,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:37,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:37,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:37,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:04:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:37,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:37,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:37,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:37,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:04:37,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:37,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:37,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:37,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:37,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:37,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:37,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:04:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:37,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:37,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:04:37,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:37,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:04:37,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:37,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:37,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:37,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:37,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:37,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:37,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:04:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:37,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:37,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:37,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:37,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:04:37,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:37,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:04:37,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:37,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:04:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:37,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:37,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:37,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:37,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-29 08:04:37,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:37,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:04:37,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 864 [2020-10-29 08:04:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:37,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:37,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:37,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:37,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:04:37,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:37,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:37,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 974 [2020-10-29 08:04:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:37,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:38,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:38,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:04:38,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:38,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-29 08:04:38,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:38,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:38,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:04:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:38,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:38,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3367 backedges. 850 proven. 248 refuted. 0 times theorem prover too weak. 2269 trivial. 0 not checked. [2020-10-29 08:04:38,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759290052] [2020-10-29 08:04:38,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:38,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:38,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360104362] [2020-10-29 08:04:38,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:38,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:38,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:38,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:38,878 INFO L87 Difference]: Start difference. First operand 6559 states and 7265 transitions. Second operand 7 states. [2020-10-29 08:04:43,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:43,024 INFO L93 Difference]: Finished difference Result 12469 states and 13915 transitions. [2020-10-29 08:04:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:43,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1175 [2020-10-29 08:04:43,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:43,049 INFO L225 Difference]: With dead ends: 12469 [2020-10-29 08:04:43,049 INFO L226 Difference]: Without dead ends: 6592 [2020-10-29 08:04:43,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:04:43,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2020-10-29 08:04:43,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6576. [2020-10-29 08:04:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6576 states. [2020-10-29 08:04:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6576 states to 6576 states and 7062 transitions. [2020-10-29 08:04:43,197 INFO L78 Accepts]: Start accepts. Automaton has 6576 states and 7062 transitions. Word has length 1175 [2020-10-29 08:04:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:43,199 INFO L481 AbstractCegarLoop]: Abstraction has 6576 states and 7062 transitions. [2020-10-29 08:04:43,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 6576 states and 7062 transitions. [2020-10-29 08:04:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1197 [2020-10-29 08:04:43,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:43,226 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:04:43,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:04:43,227 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:43,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:43,228 INFO L82 PathProgramCache]: Analyzing trace with hash 528926316, now seen corresponding path program 1 times [2020-10-29 08:04:43,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:43,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359172120] [2020-10-29 08:04:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:43,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:43,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:48,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:48,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1220 [2020-10-29 08:04:48,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:48,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-29 08:04:48,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:48,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 732 [2020-10-29 08:04:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:04:48,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:48,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:48,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:48,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:48,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:48,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:48,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:04:48,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:48,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:48,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:48,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:48,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:48,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:48,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:48,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:48,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:04:48,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:48,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:48,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:48,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:48,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:48,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:48,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:04:48,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:04:48,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:48,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:48,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:48,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:04:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:49,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:49,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:49,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:49,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:49,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:04:49,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:49,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:49,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:49,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:04:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:49,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:49,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:49,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:49,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:04:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:49,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:49,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:49,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:49,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:04:49,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:49,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:04:49,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:49,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:04:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:49,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:49,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:04:49,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:49,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-29 08:04:49,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:49,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:04:49,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:49,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2020-10-29 08:04:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:50,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:50,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:50,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:04:50,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:50,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 08:04:50,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:50,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:04:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 921 proven. 174 refuted. 0 times theorem prover too weak. 1667 trivial. 0 not checked. [2020-10-29 08:04:51,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359172120] [2020-10-29 08:04:51,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:51,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:51,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445496072] [2020-10-29 08:04:51,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:51,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:51,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:51,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:51,440 INFO L87 Difference]: Start difference. First operand 6576 states and 7062 transitions. Second operand 7 states. [2020-10-29 08:04:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:55,467 INFO L93 Difference]: Finished difference Result 12484 states and 13444 transitions. [2020-10-29 08:04:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:04:55,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1196 [2020-10-29 08:04:55,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:55,488 INFO L225 Difference]: With dead ends: 12484 [2020-10-29 08:04:55,488 INFO L226 Difference]: Without dead ends: 6590 [2020-10-29 08:04:55,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:04:55,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2020-10-29 08:04:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6576. [2020-10-29 08:04:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6576 states. [2020-10-29 08:04:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6576 states to 6576 states and 7034 transitions. [2020-10-29 08:04:55,614 INFO L78 Accepts]: Start accepts. Automaton has 6576 states and 7034 transitions. Word has length 1196 [2020-10-29 08:04:55,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:55,615 INFO L481 AbstractCegarLoop]: Abstraction has 6576 states and 7034 transitions. [2020-10-29 08:04:55,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6576 states and 7034 transitions. [2020-10-29 08:04:55,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1205 [2020-10-29 08:04:55,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:55,640 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:55,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:04:55,640 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:55,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:55,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1720176672, now seen corresponding path program 1 times [2020-10-29 08:04:55,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:55,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271812892] [2020-10-29 08:04:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:56,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:56,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:56,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:00,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:00,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1230 [2020-10-29 08:05:00,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:00,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-29 08:05:00,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:00,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:05:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:05:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:01,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:05:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:01,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:05:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:05:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:05:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:05:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:05:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:05:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:01,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:05:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:01,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:05:01,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:05:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:01,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:05:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:01,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:05:01,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:01,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:05:01,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:01,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:05:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:01,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:01,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:01,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:05:01,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:01,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:02,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:05:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:02,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:02,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:02,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:05:02,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:02,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:05:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:02,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3495 backedges. 391 proven. 740 refuted. 0 times theorem prover too weak. 2364 trivial. 0 not checked. [2020-10-29 08:05:03,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271812892] [2020-10-29 08:05:03,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:03,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:03,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960633136] [2020-10-29 08:05:03,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:03,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:03,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:03,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:03,291 INFO L87 Difference]: Start difference. First operand 6576 states and 7034 transitions. Second operand 7 states. [2020-10-29 08:05:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:07,459 INFO L93 Difference]: Finished difference Result 13838 states and 14933 transitions. [2020-10-29 08:05:07,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:05:07,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1204 [2020-10-29 08:05:07,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:07,483 INFO L225 Difference]: With dead ends: 13838 [2020-10-29 08:05:07,483 INFO L226 Difference]: Without dead ends: 7605 [2020-10-29 08:05:07,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 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 08:05:07,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7605 states. [2020-10-29 08:05:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7605 to 7260. [2020-10-29 08:05:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7260 states. [2020-10-29 08:05:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7260 states to 7260 states and 7733 transitions. [2020-10-29 08:05:07,646 INFO L78 Accepts]: Start accepts. Automaton has 7260 states and 7733 transitions. Word has length 1204 [2020-10-29 08:05:07,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:07,647 INFO L481 AbstractCegarLoop]: Abstraction has 7260 states and 7733 transitions. [2020-10-29 08:05:07,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:07,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7260 states and 7733 transitions. [2020-10-29 08:05:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1266 [2020-10-29 08:05:07,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:07,679 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:07,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:05:07,679 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:07,680 INFO L82 PathProgramCache]: Analyzing trace with hash -294389230, now seen corresponding path program 1 times [2020-10-29 08:05:07,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:07,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222785747] [2020-10-29 08:05:07,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:08,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:08,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1291 [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-29 08:05:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:05:13,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:13,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:13,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:13,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:13,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:13,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:13,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:13,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:05:13,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:13,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:05:13,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:05:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:13,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:13,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:05:13,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:05:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:05:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:13,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:05:13,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:05:13,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:05:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-29 08:05:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:13,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:13,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:05:13,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:13,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:05:13,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:13,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-29 08:05:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:13,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:13,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:13,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:13,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:05:13,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:13,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:13,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:05:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:13,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:13,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-29 08:05:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:05:14,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1064 [2020-10-29 08:05:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:14,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:05:14,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:05:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3569 backedges. 505 proven. 553 refuted. 0 times theorem prover too weak. 2511 trivial. 0 not checked. [2020-10-29 08:05:15,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222785747] [2020-10-29 08:05:15,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:15,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:15,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931101775] [2020-10-29 08:05:15,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:15,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:15,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:15,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:15,127 INFO L87 Difference]: Start difference. First operand 7260 states and 7733 transitions. Second operand 7 states. [2020-10-29 08:05:19,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:19,486 INFO L93 Difference]: Finished difference Result 17247 states and 18432 transitions. [2020-10-29 08:05:19,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:05:19,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1265 [2020-10-29 08:05:19,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:19,513 INFO L225 Difference]: With dead ends: 17247 [2020-10-29 08:05:19,513 INFO L226 Difference]: Without dead ends: 10332 [2020-10-29 08:05:19,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 08:05:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10332 states. [2020-10-29 08:05:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10332 to 9981. [2020-10-29 08:05:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9981 states. [2020-10-29 08:05:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 10579 transitions. [2020-10-29 08:05:19,706 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 10579 transitions. Word has length 1265 [2020-10-29 08:05:19,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:19,707 INFO L481 AbstractCegarLoop]: Abstraction has 9981 states and 10579 transitions. [2020-10-29 08:05:19,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:19,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 10579 transitions. [2020-10-29 08:05:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1347 [2020-10-29 08:05:19,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:19,864 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 08:05:19,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:05:19,864 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:19,865 INFO L82 PathProgramCache]: Analyzing trace with hash -232171624, now seen corresponding path program 1 times [2020-10-29 08:05:19,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:19,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273685625] [2020-10-29 08:05:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:20,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:20,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:21,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1372 [2020-10-29 08:05:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-29 08:05:25,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:25,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 795 [2020-10-29 08:05:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:05:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:25,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:25,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:25,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:05:25,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:25,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:25,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:25,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:25,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:05:25,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:25,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:25,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:05:25,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:05:25,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:25,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:25,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:05:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:25,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:25,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:25,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:05:25,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:25,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:25,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:05:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:25,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:25,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-29 08:05:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:05:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:25,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 785 [2020-10-29 08:05:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:26,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:26,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:05:26,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:26,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-29 08:05:26,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:26,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:26,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:26,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:26,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:05:26,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1035 [2020-10-29 08:05:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:26,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:26,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:26,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:26,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1145 [2020-10-29 08:05:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:26,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:26,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:26,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3656 backedges. 1030 proven. 281 refuted. 0 times theorem prover too weak. 2345 trivial. 0 not checked. [2020-10-29 08:05:28,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273685625] [2020-10-29 08:05:28,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:28,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:28,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535341702] [2020-10-29 08:05:28,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:28,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:28,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:28,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:28,161 INFO L87 Difference]: Start difference. First operand 9981 states and 10579 transitions. Second operand 7 states. [2020-10-29 08:05:32,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:32,348 INFO L93 Difference]: Finished difference Result 19964 states and 21166 transitions. [2020-10-29 08:05:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:05:32,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1346 [2020-10-29 08:05:32,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:32,373 INFO L225 Difference]: With dead ends: 19964 [2020-10-29 08:05:32,373 INFO L226 Difference]: Without dead ends: 10328 [2020-10-29 08:05:32,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:05:32,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10328 states. [2020-10-29 08:05:32,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10328 to 10320. [2020-10-29 08:05:32,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10320 states. [2020-10-29 08:05:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10320 states to 10320 states and 10923 transitions. [2020-10-29 08:05:32,556 INFO L78 Accepts]: Start accepts. Automaton has 10320 states and 10923 transitions. Word has length 1346 [2020-10-29 08:05:32,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:32,557 INFO L481 AbstractCegarLoop]: Abstraction has 10320 states and 10923 transitions. [2020-10-29 08:05:32,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:32,557 INFO L276 IsEmpty]: Start isEmpty. Operand 10320 states and 10923 transitions. [2020-10-29 08:05:32,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2020-10-29 08:05:32,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:32,591 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 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 08:05:32,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:05:32,591 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:32,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2023340000, now seen corresponding path program 1 times [2020-10-29 08:05:32,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:32,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767098880] [2020-10-29 08:05:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:33,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:33,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:33,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:37,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:37,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1404 [2020-10-29 08:05:37,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:05:37,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 08:05:37,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:37,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1191 [2020-10-29 08:05:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 08:05:37,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:38,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:38,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:38,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:38,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:05:38,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:38,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:38,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:05:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:38,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:05:38,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:38,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:05:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:05:38,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:05:38,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:38,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-29 08:05:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:05:38,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:05:38,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:38,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-29 08:05:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:05:38,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:05:38,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:38,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-29 08:05:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:38,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:05:38,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:38,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:38,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:05:38,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:38,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1177 [2020-10-29 08:05:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:38,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 08:05:38,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3973 backedges. 1239 proven. 2 refuted. 0 times theorem prover too weak. 2732 trivial. 0 not checked. [2020-10-29 08:05:40,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767098880] [2020-10-29 08:05:40,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:40,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:40,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367639098] [2020-10-29 08:05:40,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:40,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:40,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:40,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:40,170 INFO L87 Difference]: Start difference. First operand 10320 states and 10923 transitions. Second operand 7 states. [2020-10-29 08:05:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:44,325 INFO L93 Difference]: Finished difference Result 22363 states and 23848 transitions. [2020-10-29 08:05:44,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:05:44,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1378 [2020-10-29 08:05:44,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:44,353 INFO L225 Difference]: With dead ends: 22363 [2020-10-29 08:05:44,353 INFO L226 Difference]: Without dead ends: 11683 [2020-10-29 08:05:44,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:05:44,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2020-10-29 08:05:44,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 11310. [2020-10-29 08:05:44,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11310 states. [2020-10-29 08:05:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11310 states to 11310 states and 11816 transitions. [2020-10-29 08:05:44,556 INFO L78 Accepts]: Start accepts. Automaton has 11310 states and 11816 transitions. Word has length 1378 [2020-10-29 08:05:44,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:44,559 INFO L481 AbstractCegarLoop]: Abstraction has 11310 states and 11816 transitions. [2020-10-29 08:05:44,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:44,559 INFO L276 IsEmpty]: Start isEmpty. Operand 11310 states and 11816 transitions. [2020-10-29 08:05:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1462 [2020-10-29 08:05:44,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:44,611 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:44,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:05:44,611 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:44,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:44,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1958948530, now seen corresponding path program 1 times [2020-10-29 08:05:44,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:44,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773874983] [2020-10-29 08:05:44,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:45,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:46,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:49,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:49,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1485 [2020-10-29 08:05:49,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:49,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 08:05:49,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:49,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:49,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 08:05:49,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 804 [2020-10-29 08:05:49,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 677 [2020-10-29 08:05:49,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:50,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:50,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:50,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:05:50,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:50,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:50,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:50,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:50,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:50,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:50,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:05:50,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:50,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:50,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:50,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:50,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:50,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:50,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:50,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:50,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:05:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:50,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:50,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:50,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:50,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:05:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:50,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:50,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:50,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:05:50,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:05:50,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:50,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:05:50,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:50,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-29 08:05:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:51,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:51,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:51,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:05:51,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:51,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-29 08:05:51,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:51,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:51,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:51,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:51,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:05:51,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:51,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-29 08:05:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:51,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:51,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:51,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:51,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:05:51,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 08:05:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:51,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:05:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:51,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1181 [2020-10-29 08:05:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:51,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:52,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:52,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:52,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 249 [2020-10-29 08:05:52,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3686 backedges. 238 proven. 7 refuted. 0 times theorem prover too weak. 3441 trivial. 0 not checked. [2020-10-29 08:05:53,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773874983] [2020-10-29 08:05:53,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:53,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:05:53,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943072884] [2020-10-29 08:05:53,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:05:53,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:53,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:05:53,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:05:53,228 INFO L87 Difference]: Start difference. First operand 11310 states and 11816 transitions. Second operand 5 states. [2020-10-29 08:05:56,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:56,377 INFO L93 Difference]: Finished difference Result 22287 states and 23297 transitions. [2020-10-29 08:05:56,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:05:56,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1461 [2020-10-29 08:05:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:56,402 INFO L225 Difference]: With dead ends: 22287 [2020-10-29 08:05:56,403 INFO L226 Difference]: Without dead ends: 11322 [2020-10-29 08:05:56,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:05:56,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11322 states. [2020-10-29 08:05:56,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11322 to 11310. [2020-10-29 08:05:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11310 states. [2020-10-29 08:05:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11310 states to 11310 states and 11765 transitions. [2020-10-29 08:05:56,616 INFO L78 Accepts]: Start accepts. Automaton has 11310 states and 11765 transitions. Word has length 1461 [2020-10-29 08:05:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:56,618 INFO L481 AbstractCegarLoop]: Abstraction has 11310 states and 11765 transitions. [2020-10-29 08:05:56,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:05:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 11310 states and 11765 transitions. [2020-10-29 08:05:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1499 [2020-10-29 08:05:56,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:56,657 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 08:05:56,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:05:56,657 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:56,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:56,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1735185808, now seen corresponding path program 1 times [2020-10-29 08:05:56,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:56,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169520243] [2020-10-29 08:05:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:02,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1526 [2020-10-29 08:06:02,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:06:02,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5214 [2020-10-29 08:06:02,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:02,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:02,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:02,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-29 08:06:02,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:06:02,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:02,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:02,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:02,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:06:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:02,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:02,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:02,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:02,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:02,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:02,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:02,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-29 08:06:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:06:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:02,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:02,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:06:02,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:03,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:06:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:03,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:03,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:03,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:06:03,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:06:03,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:03,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-29 08:06:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:03,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-29 08:06:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:03,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:03,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:03,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:06:03,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:06:03,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:03,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 08:06:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:03,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-29 08:06:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:03,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:03,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:03,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:06:03,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:03,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:06:03,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:03,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-29 08:06:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:03,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-29 08:06:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:03,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:03,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:03,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:03,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:03,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:06:03,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:03,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:03,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:03,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1177 [2020-10-29 08:06:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:03,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:03,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:06:03,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:03,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:03,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:06:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:03,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:03,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:03,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:06:03,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:03,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:06:03,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:03,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:03,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4120 backedges. 505 proven. 567 refuted. 0 times theorem prover too weak. 3048 trivial. 0 not checked. [2020-10-29 08:06:04,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169520243] [2020-10-29 08:06:04,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:04,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:04,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451181437] [2020-10-29 08:06:04,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:04,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:04,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:04,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:04,951 INFO L87 Difference]: Start difference. First operand 11310 states and 11765 transitions. Second operand 7 states. [2020-10-29 08:06:09,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:09,440 INFO L93 Difference]: Finished difference Result 24661 states and 25723 transitions. [2020-10-29 08:06:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:06:09,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1498 [2020-10-29 08:06:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:09,472 INFO L225 Difference]: With dead ends: 24661 [2020-10-29 08:06:09,472 INFO L226 Difference]: Without dead ends: 13696 [2020-10-29 08:06:09,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13696 states. [2020-10-29 08:06:09,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13696 to 13346. [2020-10-29 08:06:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13346 states. [2020-10-29 08:06:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 13840 transitions. [2020-10-29 08:06:09,724 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 13840 transitions. Word has length 1498 [2020-10-29 08:06:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:09,725 INFO L481 AbstractCegarLoop]: Abstraction has 13346 states and 13840 transitions. [2020-10-29 08:06:09,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 13840 transitions. [2020-10-29 08:06:09,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1544 [2020-10-29 08:06:09,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:09,762 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:09,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:06:09,763 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:09,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:09,764 INFO L82 PathProgramCache]: Analyzing trace with hash 195675078, now seen corresponding path program 1 times [2020-10-29 08:06:09,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:09,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299168030] [2020-10-29 08:06:09,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:10,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1573 [2020-10-29 08:06:15,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:06:15,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5177 [2020-10-29 08:06:15,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 851 [2020-10-29 08:06:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:06:15,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:15,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:15,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:15,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:06:15,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:06:15,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:06:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:06:15,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:06:15,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:15,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-29 08:06:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:06:15,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:06:15,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:15,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-29 08:06:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:15,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:06:15,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:15,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-29 08:06:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:15,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:15,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:15,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:06:15,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:15,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 08:06:15,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:15,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:06:15,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:16,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-29 08:06:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:16,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:16,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:16,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:06:16,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:16,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:06:16,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:16,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:16,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 08:06:16,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:16,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 924 [2020-10-29 08:06:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:16,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:16,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:16,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:06:16,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:06:16,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:16,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-29 08:06:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:16,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1112 [2020-10-29 08:06:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:16,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:16,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:16,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:16,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:06:16,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:16,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:16,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:16,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1222 [2020-10-29 08:06:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:16,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:16,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:16,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:06:16,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:16,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 08:06:16,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:16,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:06:16,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:16,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:16,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:06:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:16,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:16,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:16,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4752 backedges. 714 proven. 242 refuted. 0 times theorem prover too weak. 3796 trivial. 0 not checked. [2020-10-29 08:06:17,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299168030] [2020-10-29 08:06:17,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:17,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:17,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417437972] [2020-10-29 08:06:17,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:17,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:17,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:17,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:17,909 INFO L87 Difference]: Start difference. First operand 13346 states and 13840 transitions. Second operand 7 states. [2020-10-29 08:06:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:23,684 INFO L93 Difference]: Finished difference Result 28393 states and 29462 transitions. [2020-10-29 08:06:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:06:23,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1543 [2020-10-29 08:06:23,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:23,716 INFO L225 Difference]: With dead ends: 28393 [2020-10-29 08:06:23,716 INFO L226 Difference]: Without dead ends: 15392 [2020-10-29 08:06:23,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:06:23,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15392 states. [2020-10-29 08:06:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15392 to 14706. [2020-10-29 08:06:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14706 states. [2020-10-29 08:06:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14706 states to 14706 states and 15250 transitions. [2020-10-29 08:06:23,962 INFO L78 Accepts]: Start accepts. Automaton has 14706 states and 15250 transitions. Word has length 1543 [2020-10-29 08:06:23,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:23,963 INFO L481 AbstractCegarLoop]: Abstraction has 14706 states and 15250 transitions. [2020-10-29 08:06:23,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 14706 states and 15250 transitions. [2020-10-29 08:06:23,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1548 [2020-10-29 08:06:23,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:23,997 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:23,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:06:23,997 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:23,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:23,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1091640506, now seen corresponding path program 1 times [2020-10-29 08:06:23,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:23,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785414429] [2020-10-29 08:06:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:24,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:24,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:29,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1575 [2020-10-29 08:06:29,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:06:29,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5146 [2020-10-29 08:06:29,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:29,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 851 [2020-10-29 08:06:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:06:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:29,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:29,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:29,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:29,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:06:29,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:29,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:29,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:29,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:29,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:29,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:06:29,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:06:29,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:29,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:29,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:29,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:29,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:06:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:29,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:29,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:06:29,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:06:29,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:29,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:29,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-29 08:06:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:29,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:29,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:29,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:06:29,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:29,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:06:29,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:29,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:29,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:29,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-29 08:06:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:30,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:30,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:30,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:30,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:30,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:06:30,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:30,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:30,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:30,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-29 08:06:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:30,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:30,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:30,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:06:30,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:30,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:06:30,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:30,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:06:30,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-29 08:06:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:30,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:30,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:30,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:06:30,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:30,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-29 08:06:30,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:30,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:06:30,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:30,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-29 08:06:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:30,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:06:30,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:30,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:30,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1226 [2020-10-29 08:06:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:30,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:31,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:31,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:06:31,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:31,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:06:31,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:31,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:31,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:31,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:06:31,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:31,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:31,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:06:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:31,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:31,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:31,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:06:31,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:31,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:06:31,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:31,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:31,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:31,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:31,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:31,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4225 backedges. 1086 proven. 381 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2020-10-29 08:06:32,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785414429] [2020-10-29 08:06:32,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:32,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:06:32,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891451370] [2020-10-29 08:06:32,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:06:32,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:32,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:06:32,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:06:32,787 INFO L87 Difference]: Start difference. First operand 14706 states and 15250 transitions. Second operand 7 states.