/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=SHALLOWEST --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/Problem04_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:58:58,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:58:58,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:58:58,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:58:58,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:58:58,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:58:58,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:58:58,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:58:58,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:58:58,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:58:58,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:58:58,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:58:58,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:58:58,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:58:58,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:58:58,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:58:58,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:58:58,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:58:58,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:58:58,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:58:58,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:58:58,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:58:58,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:58:58,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:58:58,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:58:58,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:58:58,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:58:58,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:58:58,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:58:58,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:58:58,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:58:58,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:58:58,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:58:58,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:58:58,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:58:58,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:58:58,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:58:58,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:58:58,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:58:58,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:58:58,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:58:58,519 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 [2020-10-26 20:58:58,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:58:58,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:58:58,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:58:58,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:58:58,576 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:58:58,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:58:58,577 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:58:58,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:58:58,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:58:58,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:58:58,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:58:58,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:58:58,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:58:58,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:58:58,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:58:58,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:58:58,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:58:58,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:58:58,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:58:58,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:58:58,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:58:58,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:58:58,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:58:58,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:58:58,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:58:58,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:58:58,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:58:58,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:58:58,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:58:58,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:58:58,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:58:59,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:58:59,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:58:59,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:58:59,028 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:58:59,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label18.c [2020-10-26 20:58:59,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4112fb11/422a79be481f4beda78bd6137b7a103f/FLAG507414340 [2020-10-26 20:59:00,117 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:59:00,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label18.c [2020-10-26 20:59:00,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4112fb11/422a79be481f4beda78bd6137b7a103f/FLAG507414340 [2020-10-26 20:59:00,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4112fb11/422a79be481f4beda78bd6137b7a103f [2020-10-26 20:59:00,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:59:00,547 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:59:00,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:59:00,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:59:00,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:59:00,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:59:00" (1/1) ... [2020-10-26 20:59:00,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a25bbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:00, skipping insertion in model container [2020-10-26 20:59:00,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:59:00" (1/1) ... [2020-10-26 20:59:00,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:59:00,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:59:02,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:59:02,111 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:59:02,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:59:02,904 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:59:02,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02 WrapperNode [2020-10-26 20:59:02,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:59:02,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:59:02,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:59:02,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:59:02,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (1/1) ... [2020-10-26 20:59:02,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (1/1) ... [2020-10-26 20:59:02,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (1/1) ... [2020-10-26 20:59:02,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (1/1) ... [2020-10-26 20:59:03,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (1/1) ... [2020-10-26 20:59:03,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (1/1) ... [2020-10-26 20:59:03,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (1/1) ... [2020-10-26 20:59:03,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:59:03,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:59:03,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:59:03,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:59:03,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (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 [2020-10-26 20:59:03,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:59:03,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:59:03,381 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:59:03,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:59:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-26 20:59:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-26 20:59:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-26 20:59:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:59:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:59:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-26 20:59:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-26 20:59:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-26 20:59:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:59:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:59:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:59:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:59:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:59:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:59:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:59:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:59:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:59:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:59:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:59:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:59:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:59:08,307 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:59:08,307 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:59:08,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:59:08 BoogieIcfgContainer [2020-10-26 20:59:08,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:59:08,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:59:08,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:59:08,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:59:08,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:59:00" (1/3) ... [2020-10-26 20:59:08,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282e848e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:59:08, skipping insertion in model container [2020-10-26 20:59:08,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:59:02" (2/3) ... [2020-10-26 20:59:08,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282e848e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:59:08, skipping insertion in model container [2020-10-26 20:59:08,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:59:08" (3/3) ... [2020-10-26 20:59:08,325 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem04_label18.c [2020-10-26 20:59:08,337 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:59:08,343 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:59:08,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:59:08,407 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:59:08,407 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:59:08,408 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:59:08,408 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:59:08,408 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:59:08,408 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:59:08,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:59:08,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:59:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states. [2020-10-26 20:59:08,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-10-26 20:59:08,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:59:08,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:59:08,560 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:59:08,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:59:08,571 INFO L82 PathProgramCache]: Analyzing trace with hash -250423508, now seen corresponding path program 1 times [2020-10-26 20:59:08,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:59:08,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417366628] [2020-10-26 20:59:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:59:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:09,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:14,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:14,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 806 [2020-10-26 20:59:14,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:59:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-26 20:59:14,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 20:59:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:59:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 797 [2020-10-26 20:59:14,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:59:15,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:59:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:15,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:15,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:15,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:59:15,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:59:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:59:15,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:59:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:59:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:59:15,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:59:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:59:16,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417366628] [2020-10-26 20:59:16,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:59:16,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:59:16,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855377988] [2020-10-26 20:59:16,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:59:16,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:59:16,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:59:16,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:59:16,301 INFO L87 Difference]: Start difference. First operand 910 states. Second operand 5 states. [2020-10-26 20:59:16,487 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:59:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:59:32,372 INFO L93 Difference]: Finished difference Result 3526 states and 6832 transitions. [2020-10-26 20:59:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:59:32,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 790 [2020-10-26 20:59:32,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:59:32,426 INFO L225 Difference]: With dead ends: 3526 [2020-10-26 20:59:32,426 INFO L226 Difference]: Without dead ends: 2548 [2020-10-26 20:59:32,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:59:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2020-10-26 20:59:32,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2535. [2020-10-26 20:59:32,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2535 states. [2020-10-26 20:59:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 4176 transitions. [2020-10-26 20:59:32,646 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 4176 transitions. Word has length 790 [2020-10-26 20:59:32,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:59:32,650 INFO L481 AbstractCegarLoop]: Abstraction has 2535 states and 4176 transitions. [2020-10-26 20:59:32,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:59:32,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 4176 transitions. [2020-10-26 20:59:32,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2020-10-26 20:59:32,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:59:32,683 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:59:32,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:59:32,683 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:59:32,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:59:32,685 INFO L82 PathProgramCache]: Analyzing trace with hash 421715342, now seen corresponding path program 1 times [2020-10-26 20:59:32,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:59:32,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442505149] [2020-10-26 20:59:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:59:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:32,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:33,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:35,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:37,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:37,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 816 [2020-10-26 20:59:37,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:59:37,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-26 20:59:37,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:59:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:59:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:59:37,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:59:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:59:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:38,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:38,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:38,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:59:38,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:59:38,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:59:38,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:59:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:59:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:59:38,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:59:38,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:59:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:38,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:38,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:59:38,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:59:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:59:38,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:59:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:59:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:59:38,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:59:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:59:38,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442505149] [2020-10-26 20:59:38,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:59:38,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:59:38,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607602466] [2020-10-26 20:59:38,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:59:38,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:59:38,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:59:38,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:59:38,867 INFO L87 Difference]: Start difference. First operand 2535 states and 4176 transitions. Second operand 7 states. [2020-10-26 20:59:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:59:51,372 INFO L93 Difference]: Finished difference Result 7734 states and 12854 transitions. [2020-10-26 20:59:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:59:51,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 798 [2020-10-26 20:59:51,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:59:51,408 INFO L225 Difference]: With dead ends: 7734 [2020-10-26 20:59:51,408 INFO L226 Difference]: Without dead ends: 5205 [2020-10-26 20:59:51,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:59:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5205 states. [2020-10-26 20:59:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5205 to 5157. [2020-10-26 20:59:51,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5157 states. [2020-10-26 20:59:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 7637 transitions. [2020-10-26 20:59:51,577 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 7637 transitions. Word has length 798 [2020-10-26 20:59:51,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:59:51,577 INFO L481 AbstractCegarLoop]: Abstraction has 5157 states and 7637 transitions. [2020-10-26 20:59:51,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:59:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 7637 transitions. [2020-10-26 20:59:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-10-26 20:59:51,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:59:51,617 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:59:51,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:59:51,617 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:59:51,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:59:51,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1200371373, now seen corresponding path program 1 times [2020-10-26 20:59:51,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:59:51,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153196190] [2020-10-26 20:59:51,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:59:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:52,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:56,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:56,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 819 [2020-10-26 20:59:56,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:59:56,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-26 20:59:56,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:56,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:59:56,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:59:56,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:59:56,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:59:56,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:59:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:56,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:56,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:56,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:59:56,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:59:56,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:59:56,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:59:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:59:56,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:59:56,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:59:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:59:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:59:56,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:59:56,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:59:56,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:59:56,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:59:56,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:59:56,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:59:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:59:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:59:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:59:56,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:59:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:59:57,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153196190] [2020-10-26 20:59:57,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:59:57,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:59:57,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473323858] [2020-10-26 20:59:57,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:59:57,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:59:57,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:59:57,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:59:57,377 INFO L87 Difference]: Start difference. First operand 5157 states and 7637 transitions. Second operand 7 states. [2020-10-26 21:00:00,398 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-26 21:00:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:00:10,220 INFO L93 Difference]: Finished difference Result 15546 states and 23447 transitions. [2020-10-26 21:00:10,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 21:00:10,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 801 [2020-10-26 21:00:10,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:00:10,271 INFO L225 Difference]: With dead ends: 15546 [2020-10-26 21:00:10,271 INFO L226 Difference]: Without dead ends: 10395 [2020-10-26 21:00:10,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 21:00:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10395 states. [2020-10-26 21:00:10,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10395 to 9530. [2020-10-26 21:00:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9530 states. [2020-10-26 21:00:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9530 states to 9530 states and 13278 transitions. [2020-10-26 21:00:10,583 INFO L78 Accepts]: Start accepts. Automaton has 9530 states and 13278 transitions. Word has length 801 [2020-10-26 21:00:10,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:00:10,584 INFO L481 AbstractCegarLoop]: Abstraction has 9530 states and 13278 transitions. [2020-10-26 21:00:10,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 21:00:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 9530 states and 13278 transitions. [2020-10-26 21:00:10,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2020-10-26 21:00:10,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:00:10,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:00:10,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 21:00:10,620 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:00:10,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:00:10,621 INFO L82 PathProgramCache]: Analyzing trace with hash -979585919, now seen corresponding path program 1 times [2020-10-26 21:00:10,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:00:10,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867896164] [2020-10-26 21:00:10,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:00:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:10,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:11,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:14,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:15,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:15,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 825 [2020-10-26 21:00:15,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 21:00:15,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-26 21:00:15,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 21:00:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:00:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 21:00:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:15,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:00:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:16,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:16,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:00:16,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:00:16,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 21:00:16,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:16,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:00:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:00:16,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:00:16,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:16,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:00:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:16,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:16,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:16,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 21:00:16,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:00:16,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 21:00:16,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:16,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:00:16,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:00:16,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 21:00:16,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:00:16,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867896164] [2020-10-26 21:00:16,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 21:00:16,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 21:00:16,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538166758] [2020-10-26 21:00:16,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 21:00:16,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:00:16,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 21:00:16,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 21:00:16,475 INFO L87 Difference]: Start difference. First operand 9530 states and 13278 transitions. Second operand 8 states. [2020-10-26 21:00:16,611 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 21:00:24,550 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-26 21:00:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:00:32,706 INFO L93 Difference]: Finished difference Result 28777 states and 41780 transitions. [2020-10-26 21:00:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 21:00:32,707 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 807 [2020-10-26 21:00:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:00:32,789 INFO L225 Difference]: With dead ends: 28777 [2020-10-26 21:00:32,789 INFO L226 Difference]: Without dead ends: 19253 [2020-10-26 21:00:32,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 21:00:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19253 states. [2020-10-26 21:00:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19253 to 19150. [2020-10-26 21:00:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19150 states. [2020-10-26 21:00:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19150 states to 19150 states and 25775 transitions. [2020-10-26 21:00:33,334 INFO L78 Accepts]: Start accepts. Automaton has 19150 states and 25775 transitions. Word has length 807 [2020-10-26 21:00:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:00:33,334 INFO L481 AbstractCegarLoop]: Abstraction has 19150 states and 25775 transitions. [2020-10-26 21:00:33,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 21:00:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 19150 states and 25775 transitions. [2020-10-26 21:00:33,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-10-26 21:00:33,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:00:33,393 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:00:33,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 21:00:33,393 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:00:33,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:00:33,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1792123265, now seen corresponding path program 1 times [2020-10-26 21:00:33,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:00:33,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806486553] [2020-10-26 21:00:33,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:00:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:33,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:33,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:36,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:38,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:38,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:38,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 837 [2020-10-26 21:00:38,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 21:00:38,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-26 21:00:38,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 21:00:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:00:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 21:00:38,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:38,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:00:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:38,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:38,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:38,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:00:38,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:00:38,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 21:00:38,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:38,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:00:38,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:00:38,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:00:38,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:38,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:00:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:38,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:38,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:38,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:38,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 21:00:38,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:00:38,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 21:00:38,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:38,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:00:38,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:00:38,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 21:00:38,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:38,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 21:00:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:38,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:39,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:39,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 21:00:39,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:00:39,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 21:00:39,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:00:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:00:39,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 21:00:39,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 21:00:39,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806486553] [2020-10-26 21:00:39,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 21:00:39,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 21:00:39,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459973432] [2020-10-26 21:00:39,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 21:00:39,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:00:39,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 21:00:39,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 21:00:39,561 INFO L87 Difference]: Start difference. First operand 19150 states and 25775 transitions. Second operand 8 states. [2020-10-26 21:00:39,692 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 21:00:42,556 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-26 21:00:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:00:51,487 INFO L93 Difference]: Finished difference Result 40351 states and 54922 transitions. [2020-10-26 21:00:51,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 21:00:51,488 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 817 [2020-10-26 21:00:51,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:00:51,564 INFO L225 Difference]: With dead ends: 40351 [2020-10-26 21:00:51,564 INFO L226 Difference]: Without dead ends: 21207 [2020-10-26 21:00:51,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-26 21:00:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21207 states. [2020-10-26 21:00:52,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21207 to 21077. [2020-10-26 21:00:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21077 states. [2020-10-26 21:00:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21077 states to 21077 states and 28593 transitions. [2020-10-26 21:00:52,125 INFO L78 Accepts]: Start accepts. Automaton has 21077 states and 28593 transitions. Word has length 817 [2020-10-26 21:00:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:00:52,125 INFO L481 AbstractCegarLoop]: Abstraction has 21077 states and 28593 transitions. [2020-10-26 21:00:52,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 21:00:52,125 INFO L276 IsEmpty]: Start isEmpty. Operand 21077 states and 28593 transitions. [2020-10-26 21:00:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2020-10-26 21:00:52,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:00:52,186 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:00:52,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 21:00:52,186 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:00:52,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:00:52,187 INFO L82 PathProgramCache]: Analyzing trace with hash -486238993, now seen corresponding path program 1 times [2020-10-26 21:00:52,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:00:52,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178333121] [2020-10-26 21:00:52,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:00:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:52,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:52,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:55,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:57,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:57,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 845 [2020-10-26 21:00:57,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 21:00:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5131 [2020-10-26 21:00:57,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 21:00:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:00:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-26 21:00:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:57,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:00:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:57,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:57,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:57,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:00:57,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:00:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 21:00:57,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:00:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:00:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:00:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:00:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:57,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:57,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:57,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:57,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 21:00:57,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:00:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 21:00:57,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:00:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:00:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 21:00:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:57,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 21:00:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:00:57,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:00:57,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:00:57,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-26 21:00:57,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:00:57,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 21:00:57,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:00:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:00:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:00:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 21:00:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:00:58,277 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 21:00:58,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178333121] [2020-10-26 21:00:58,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 21:00:58,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 21:00:58,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617372105] [2020-10-26 21:00:58,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 21:00:58,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:00:58,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 21:00:58,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 21:00:58,281 INFO L87 Difference]: Start difference. First operand 21077 states and 28593 transitions. Second operand 8 states. [2020-10-26 21:00:58,405 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 21:01:01,750 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 21:01:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:01:12,395 INFO L93 Difference]: Finished difference Result 61832 states and 87354 transitions. [2020-10-26 21:01:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 21:01:12,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 825 [2020-10-26 21:01:12,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:01:12,533 INFO L225 Difference]: With dead ends: 61832 [2020-10-26 21:01:12,533 INFO L226 Difference]: Without dead ends: 40761 [2020-10-26 21:01:12,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-26 21:01:12,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40761 states. [2020-10-26 21:01:13,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40761 to 38909. [2020-10-26 21:01:13,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38909 states. [2020-10-26 21:01:13,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38909 states to 38909 states and 50231 transitions. [2020-10-26 21:01:13,709 INFO L78 Accepts]: Start accepts. Automaton has 38909 states and 50231 transitions. Word has length 825 [2020-10-26 21:01:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:01:13,710 INFO L481 AbstractCegarLoop]: Abstraction has 38909 states and 50231 transitions. [2020-10-26 21:01:13,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 21:01:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 38909 states and 50231 transitions. [2020-10-26 21:01:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2020-10-26 21:01:13,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:01:13,806 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:01:13,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 21:01:13,807 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:01:13,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:01:13,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1216203828, now seen corresponding path program 1 times [2020-10-26 21:01:13,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:01:13,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207391864] [2020-10-26 21:01:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:01:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:13,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:14,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:18,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:18,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 962 [2020-10-26 21:01:18,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 21:01:18,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-26 21:01:18,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:01:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-26 21:01:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 21:01:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:19,217 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 21:01:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:01:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:19,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:19,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:19,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:01:19,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 21:01:19,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:01:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:01:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:01:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:19,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:01:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:19,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:19,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:19,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 21:01:19,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:19,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 21:01:19,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:01:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:01:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:01:19,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:19,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 21:01:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:19,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:19,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:19,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 21:01:19,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:19,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 21:01:19,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:01:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:01:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 21:01:19,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:19,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 21:01:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:19,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:19,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 21:01:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:19,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-26 21:01:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:19,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:19,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:19,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-26 21:01:19,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:19,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 21:01:19,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:01:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-26 21:01:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:01:19,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 179 proven. 49 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-26 21:01:19,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207391864] [2020-10-26 21:01:19,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 21:01:19,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 21:01:19,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062980189] [2020-10-26 21:01:19,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 21:01:19,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:01:19,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 21:01:19,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 21:01:19,824 INFO L87 Difference]: Start difference. First operand 38909 states and 50231 transitions. Second operand 7 states. [2020-10-26 21:01:26,767 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 21:01:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:01:33,249 INFO L93 Difference]: Finished difference Result 81296 states and 105477 transitions. [2020-10-26 21:01:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 21:01:33,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 938 [2020-10-26 21:01:33,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:01:33,374 INFO L225 Difference]: With dead ends: 81296 [2020-10-26 21:01:33,374 INFO L226 Difference]: Without dead ends: 40691 [2020-10-26 21:01:33,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 21:01:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40691 states. [2020-10-26 21:01:34,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40691 to 38947. [2020-10-26 21:01:34,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38947 states. [2020-10-26 21:01:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38947 states to 38947 states and 46668 transitions. [2020-10-26 21:01:34,163 INFO L78 Accepts]: Start accepts. Automaton has 38947 states and 46668 transitions. Word has length 938 [2020-10-26 21:01:34,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:01:34,163 INFO L481 AbstractCegarLoop]: Abstraction has 38947 states and 46668 transitions. [2020-10-26 21:01:34,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 21:01:34,163 INFO L276 IsEmpty]: Start isEmpty. Operand 38947 states and 46668 transitions. [2020-10-26 21:01:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2020-10-26 21:01:34,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:01:34,262 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:01:34,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 21:01:34,262 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:01:34,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:01:34,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1580180021, now seen corresponding path program 1 times [2020-10-26 21:01:34,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:01:34,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232095960] [2020-10-26 21:01:34,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:01:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:34,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:34,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:34,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:36,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:39,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:39,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1051 [2020-10-26 21:01:39,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 21:01:39,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-26 21:01:39,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:01:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 21:01:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 21:01:39,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:01:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:39,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:39,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:39,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:01:39,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:39,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 21:01:39,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:01:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:01:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:01:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:39,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:01:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:39,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:39,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:39,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 21:01:39,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 21:01:39,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:01:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:01:39,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 21:01:39,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:39,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 21:01:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:39,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:39,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:39,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 21:01:39,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-26 21:01:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:01:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:01:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 21:01:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:39,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 21:01:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:39,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:39,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:39,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 21:01:39,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 21:01:39,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:01:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 21:01:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:01:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:39,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-26 21:01:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:39,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 21:01:39,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 21:01:39,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:01:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-26 21:01:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:01:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:39,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-26 21:01:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:39,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:40,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:01:40,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-26 21:01:40,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:01:40,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 21:01:40,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:01:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:01:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-26 21:01:40,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:01:40,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:01:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 248 proven. 136 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-10-26 21:01:40,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232095960] [2020-10-26 21:01:40,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 21:01:40,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 21:01:40,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885620408] [2020-10-26 21:01:40,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 21:01:40,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:01:40,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 21:01:40,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 21:01:40,554 INFO L87 Difference]: Start difference. First operand 38947 states and 46668 transitions. Second operand 7 states. [2020-10-26 21:01:45,547 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 21:01:55,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:01:55,340 INFO L93 Difference]: Finished difference Result 93686 states and 118836 transitions. [2020-10-26 21:01:55,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 21:01:55,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1025 [2020-10-26 21:01:55,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:01:55,549 INFO L225 Difference]: With dead ends: 93686 [2020-10-26 21:01:55,549 INFO L226 Difference]: Without dead ends: 55579 [2020-10-26 21:01:55,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 21:01:55,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55579 states. [2020-10-26 21:01:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55579 to 53492. [2020-10-26 21:01:56,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53492 states. [2020-10-26 21:01:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53492 states to 53492 states and 65265 transitions. [2020-10-26 21:01:56,906 INFO L78 Accepts]: Start accepts. Automaton has 53492 states and 65265 transitions. Word has length 1025 [2020-10-26 21:01:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:01:56,907 INFO L481 AbstractCegarLoop]: Abstraction has 53492 states and 65265 transitions. [2020-10-26 21:01:56,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 21:01:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 53492 states and 65265 transitions. [2020-10-26 21:01:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2020-10-26 21:01:56,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:01:56,982 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:01:56,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 21:01:56,982 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:01:56,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:01:56,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2093837631, now seen corresponding path program 1 times [2020-10-26 21:01:56,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:01:56,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975789952] [2020-10-26 21:01:56,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:01:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:01:57,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:57,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:57,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:01:58,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:02,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:02,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1125 [2020-10-26 21:02:02,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 21:02:02,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5168 [2020-10-26 21:02:02,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:02,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:02:02,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 21:02:02,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-26 21:02:02,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:02,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:02:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:02,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:02,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:02,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:02:02,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:02,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 21:02:02,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:02:02,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:02,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:02,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:02:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:02,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 21:02:02,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 21:02:02,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:02:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:02:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 21:02:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:02,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 21:02:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:02,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:02,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:02,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-26 21:02:02,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-26 21:02:02,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:02:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:02:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-26 21:02:02,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-26 21:02:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:03,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:03,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 21:02:03,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 21:02:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-26 21:02:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:03,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 21:02:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:03,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:03,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:03,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-26 21:02:03,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 21:02:03,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-26 21:02:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:03,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:03,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2020-10-26 21:02:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:03,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:03,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:03,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 21:02:03,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:03,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 21:02:03,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:03,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:03,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-26 21:02:03,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:03,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 322 proven. 133 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-10-26 21:02:04,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975789952] [2020-10-26 21:02:04,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 21:02:04,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 21:02:04,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079545882] [2020-10-26 21:02:04,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 21:02:04,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:02:04,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 21:02:04,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 21:02:04,125 INFO L87 Difference]: Start difference. First operand 53492 states and 65265 transitions. Second operand 7 states. [2020-10-26 21:02:04,392 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 21:02:09,459 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 21:02:19,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:02:19,971 INFO L93 Difference]: Finished difference Result 114927 states and 144217 transitions. [2020-10-26 21:02:19,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 21:02:19,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1099 [2020-10-26 21:02:19,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:02:20,170 INFO L225 Difference]: With dead ends: 114927 [2020-10-26 21:02:20,171 INFO L226 Difference]: Without dead ends: 61414 [2020-10-26 21:02:20,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 21:02:20,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61414 states. [2020-10-26 21:02:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61414 to 61094. [2020-10-26 21:02:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61094 states. [2020-10-26 21:02:22,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61094 states to 61094 states and 73389 transitions. [2020-10-26 21:02:22,228 INFO L78 Accepts]: Start accepts. Automaton has 61094 states and 73389 transitions. Word has length 1099 [2020-10-26 21:02:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:02:22,228 INFO L481 AbstractCegarLoop]: Abstraction has 61094 states and 73389 transitions. [2020-10-26 21:02:22,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 21:02:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 61094 states and 73389 transitions. [2020-10-26 21:02:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2020-10-26 21:02:22,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:02:22,295 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:02:22,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 21:02:22,295 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:02:22,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:02:22,296 INFO L82 PathProgramCache]: Analyzing trace with hash -324211113, now seen corresponding path program 1 times [2020-10-26 21:02:22,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:02:22,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102790864] [2020-10-26 21:02:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:02:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:22,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:22,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:22,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:26,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:27,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1133 [2020-10-26 21:02:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 21:02:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-26 21:02:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:02:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-26 21:02:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 21:02:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:27,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:02:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:27,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:27,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:02:27,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 21:02:27,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:02:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:27,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:02:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:27,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:27,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:27,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 21:02:27,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:27,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 21:02:27,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:27,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:27,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:02:27,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:27,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:27,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 21:02:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:28,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:28,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:28,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 21:02:28,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:28,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-26 21:02:28,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:28,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:02:28,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:02:28,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 21:02:28,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:28,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-26 21:02:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:28,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:28,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 21:02:28,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:28,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 21:02:28,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:02:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:02:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 21:02:28,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:28,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-26 21:02:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:28,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:28,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:28,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 21:02:28,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 21:02:28,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:28,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-26 21:02:28,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:28,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-26 21:02:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:28,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:28,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:28,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-26 21:02:28,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 21:02:28,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-26 21:02:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:02:28,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-10-26 21:02:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:02:28,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:02:28,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:02:28,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 21:02:28,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:02:28,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 21:02:28,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:02:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:02:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-26 21:02:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:02:28,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0