/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-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 10:10:42,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 10:10:42,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 10:10:42,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 10:10:42,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 10:10:42,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 10:10:42,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 10:10:42,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 10:10:42,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 10:10:42,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 10:10:42,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 10:10:42,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 10:10:42,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 10:10:42,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 10:10:42,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 10:10:42,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 10:10:42,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 10:10:42,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 10:10:42,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 10:10:42,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 10:10:42,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 10:10:42,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 10:10:42,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 10:10:42,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 10:10:42,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 10:10:42,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 10:10:42,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 10:10:42,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 10:10:42,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 10:10:42,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 10:10:42,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 10:10:42,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 10:10:42,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 10:10:42,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 10:10:42,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 10:10:42,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 10:10:42,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 10:10:42,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 10:10:42,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 10:10:42,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 10:10:42,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 10:10:42,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 10:10:42,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 10:10:42,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 10:10:42,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 10:10:42,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 10:10:42,603 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 10:10:42,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 10:10:42,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 10:10:42,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 10:10:42,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 10:10:42,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 10:10:42,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 10:10:42,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 10:10:42,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 10:10:42,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 10:10:42,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 10:10:42,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 10:10:42,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 10:10:42,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 10:10:42,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:10:42,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 10:10:42,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 10:10:42,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 10:10:42,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 10:10:42,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 10:10:42,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 10:10:42,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 10:10:42,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 10:10:42,611 INFO L138 SettingsManager]: * To the following directory=dump/ 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 10:10:42,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 10:10:43,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 10:10:43,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 10:10:43,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 10:10:43,034 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 10:10:43,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2020-10-27 10:10:43,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51fa331ea/fa2993bf92ad4ab3bda9da5d9f937b58/FLAG7b307919c [2020-10-27 10:10:44,021 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 10:10:44,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2020-10-27 10:10:44,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51fa331ea/fa2993bf92ad4ab3bda9da5d9f937b58/FLAG7b307919c [2020-10-27 10:10:44,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51fa331ea/fa2993bf92ad4ab3bda9da5d9f937b58 [2020-10-27 10:10:44,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 10:10:44,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 10:10:44,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 10:10:44,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 10:10:44,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 10:10:44,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:10:44" (1/1) ... [2020-10-27 10:10:44,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd9193b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:44, skipping insertion in model container [2020-10-27 10:10:44,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:10:44" (1/1) ... [2020-10-27 10:10:44,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 10:10:44,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 10:10:45,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:10:45,843 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 10:10:46,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:10:46,272 INFO L208 MainTranslator]: Completed translation [2020-10-27 10:10:46,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46 WrapperNode [2020-10-27 10:10:46,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 10:10:46,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 10:10:46,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 10:10:46,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 10:10:46,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (1/1) ... [2020-10-27 10:10:46,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (1/1) ... [2020-10-27 10:10:46,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (1/1) ... [2020-10-27 10:10:46,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (1/1) ... [2020-10-27 10:10:46,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (1/1) ... [2020-10-27 10:10:46,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (1/1) ... [2020-10-27 10:10:46,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (1/1) ... [2020-10-27 10:10:46,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 10:10:46,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 10:10:46,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 10:10:46,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 10:10:46,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (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 [2020-10-27 10:10:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 10:10:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 10:10:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-27 10:10:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 10:10:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2020-10-27 10:10:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-27 10:10:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2020-10-27 10:10:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 10:10:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-10-27 10:10:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 10:10:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 10:10:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 10:10:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 10:10:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 10:10:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 10:10:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 10:10:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 10:10:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-27 10:10:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-27 10:10:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2020-10-27 10:10:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2020-10-27 10:10:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2020-10-27 10:10:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ack_tx [2020-10-27 10:10:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_cap_init [2020-10-27 10:10:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure capmode_module_init [2020-10-27 10:10:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure capmode_module_exit [2020-10-27 10:10:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2020-10-27 10:10:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 10:10:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-27 10:10:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-27 10:10:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-27 10:10:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-27 10:10:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-27 10:10:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2020-10-27 10:10:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2020-10-27 10:10:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2020-10-27 10:10:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_17 [2020-10-27 10:10:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-27 10:10:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-27 10:10:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 10:10:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-10-27 10:10:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2020-10-27 10:10:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 10:10:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-27 10:10:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-27 10:10:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-27 10:10:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 10:10:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 10:10:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 10:10:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 10:10:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 10:10:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 10:10:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 10:10:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 10:10:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 10:10:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 10:10:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 10:10:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 10:10:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 10:10:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 10:10:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-27 10:10:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-27 10:10:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-27 10:10:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-27 10:10:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2020-10-27 10:10:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-27 10:10:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2020-10-27 10:10:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-27 10:10:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-27 10:10:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-27 10:10:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2020-10-27 10:10:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 10:10:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 10:10:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-27 10:10:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 10:10:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2020-10-27 10:10:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 10:10:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-27 10:10:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-27 10:10:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-27 10:10:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 10:10:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 10:10:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 10:10:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-27 10:10:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 10:10:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 10:10:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-10-27 10:10:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 10:10:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 10:10:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 10:10:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 10:10:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 10:10:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 10:10:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 10:10:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 10:10:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 10:10:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2020-10-27 10:10:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-27 10:10:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_17 [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 10:10:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2020-10-27 10:10:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2020-10-27 10:10:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure ack_tx [2020-10-27 10:10:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_cap_init [2020-10-27 10:10:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure capmode_module_init [2020-10-27 10:10:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure capmode_module_exit [2020-10-27 10:10:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 10:10:46,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-27 10:10:46,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-27 10:10:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 10:10:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-27 10:10:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-27 10:10:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-27 10:10:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-27 10:10:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 10:10:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 10:10:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 10:10:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 10:10:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 10:10:47,514 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 10:10:48,340 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 10:10:48,340 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 10:10:48,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:10:48 BoogieIcfgContainer [2020-10-27 10:10:48,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 10:10:48,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 10:10:48,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 10:10:48,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 10:10:48,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:10:44" (1/3) ... [2020-10-27 10:10:48,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43609668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:10:48, skipping insertion in model container [2020-10-27 10:10:48,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:10:46" (2/3) ... [2020-10-27 10:10:48,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43609668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:10:48, skipping insertion in model container [2020-10-27 10:10:48,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:10:48" (3/3) ... [2020-10-27 10:10:48,352 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.i [2020-10-27 10:10:48,365 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 10:10:48,371 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 10:10:48,385 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 10:10:48,415 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 10:10:48,415 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 10:10:48,416 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 10:10:48,416 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 10:10:48,416 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 10:10:48,416 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 10:10:48,416 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 10:10:48,416 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 10:10:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states. [2020-10-27 10:10:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 10:10:48,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:10:48,455 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] [2020-10-27 10:10:48,455 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:10:48,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:10:48,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1732667529, now seen corresponding path program 1 times [2020-10-27 10:10:48,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:10:48,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538858896] [2020-10-27 10:10:48,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:10:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:49,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:49,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:49,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:51,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:51,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 10:10:51,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:10:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2575 [2020-10-27 10:10:51,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 10:10:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 10:10:51,839 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:10:51,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:10:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:51,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:51,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:51,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:51,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:51,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 10:10:51,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:51,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:51,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:51,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 10:10:51,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:10:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:51,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:51,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:51,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:10:51,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:51,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 10:10:51,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 10:10:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:51,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:10:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:52,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:10:52,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:52,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:10:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:10:52,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:10:52,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 10:10:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:52,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:10:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:10:52,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:52,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:10:52,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:10:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:52,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:10:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:52,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:52,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:10:52,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:10:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:10:52,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:10:52,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 10:10:52,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:10:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:10:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:10:52,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 10:10:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:10:52,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:10:52,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:52,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:10:52,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:52,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:10:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:52,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:10:52,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:10:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 10:10:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:52,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:52,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:10:52,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:10:52,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:10:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:10:52,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:10:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:10:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:10:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:10:52,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:10:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 10:10:52,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538858896] [2020-10-27 10:10:52,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:10:52,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 10:10:52,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38381476] [2020-10-27 10:10:52,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 10:10:52,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:10:52,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 10:10:52,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-27 10:10:52,328 INFO L87 Difference]: Start difference. First operand 343 states. Second operand 9 states. [2020-10-27 10:10:52,778 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:10:53,709 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 10:10:54,211 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 10:10:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:10:59,421 INFO L93 Difference]: Finished difference Result 742 states and 999 transitions. [2020-10-27 10:10:59,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 10:10:59,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-10-27 10:10:59,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:10:59,443 INFO L225 Difference]: With dead ends: 742 [2020-10-27 10:10:59,443 INFO L226 Difference]: Without dead ends: 420 [2020-10-27 10:10:59,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-27 10:10:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-27 10:10:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 302. [2020-10-27 10:10:59,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-27 10:10:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 373 transitions. [2020-10-27 10:10:59,572 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 373 transitions. Word has length 61 [2020-10-27 10:10:59,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:10:59,572 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 373 transitions. [2020-10-27 10:10:59,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 10:10:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 373 transitions. [2020-10-27 10:10:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 10:10:59,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:10:59,577 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] [2020-10-27 10:10:59,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 10:10:59,577 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:10:59,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:10:59,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1330859543, now seen corresponding path program 1 times [2020-10-27 10:10:59,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:10:59,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277200403] [2020-10-27 10:10:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:10:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:10:59,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:10:59,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:00,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:00,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 10:11:00,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:11:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-27 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:00,846 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:11:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:00,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:00,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:00,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:00,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 10:11:00,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:00,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:00,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:00,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:00,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:00,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:00,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:11:00,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:00,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:00,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:00,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:00,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:00,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:00,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:00,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:00,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:00,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:00,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:00,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:01,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:11:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:01,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:01,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:01,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:01,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:11:01,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:01,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:11:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:01,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:01,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:01,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:01,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:01,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:01,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:01,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:01,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:01,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:11:01,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:01,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:11:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:01,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:01,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:01,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:11:01,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:01,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 10:11:01,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:01,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:11:01,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:01,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 10:11:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:01,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:01,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:01,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:01,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:01,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:01,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:11:01,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:01,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:01,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:01,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:01,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:01,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:01,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:01,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:01,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 10:11:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:01,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:01,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:01,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:01,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:11:01,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:11:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:11:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 10:11:01,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277200403] [2020-10-27 10:11:01,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:11:01,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 10:11:01,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176513255] [2020-10-27 10:11:01,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 10:11:01,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:11:01,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 10:11:01,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-27 10:11:01,234 INFO L87 Difference]: Start difference. First operand 302 states and 373 transitions. Second operand 11 states. [2020-10-27 10:11:01,636 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:11:02,227 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 10:11:02,720 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-27 10:11:05,052 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-27 10:11:05,694 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 10:11:06,233 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 10:11:10,046 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 10:11:14,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:11:14,709 INFO L93 Difference]: Finished difference Result 1018 states and 1315 transitions. [2020-10-27 10:11:14,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 10:11:14,711 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2020-10-27 10:11:14,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:11:14,720 INFO L225 Difference]: With dead ends: 1018 [2020-10-27 10:11:14,720 INFO L226 Difference]: Without dead ends: 722 [2020-10-27 10:11:14,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2020-10-27 10:11:14,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-10-27 10:11:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 637. [2020-10-27 10:11:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2020-10-27 10:11:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 814 transitions. [2020-10-27 10:11:14,881 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 814 transitions. Word has length 62 [2020-10-27 10:11:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:11:14,882 INFO L481 AbstractCegarLoop]: Abstraction has 637 states and 814 transitions. [2020-10-27 10:11:14,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 10:11:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 814 transitions. [2020-10-27 10:11:14,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 10:11:14,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:11:14,899 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:11:14,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 10:11:14,899 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:11:14,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:11:14,901 INFO L82 PathProgramCache]: Analyzing trace with hash 379221813, now seen corresponding path program 1 times [2020-10-27 10:11:14,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:11:14,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792034634] [2020-10-27 10:11:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:11:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:14,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:15,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:15,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:15,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:17,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:17,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:19,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:19,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-27 10:11:19,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 10:11:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 10:11:19,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 10:11:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 10:11:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,410 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:11:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:20,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:20,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 10:11:20,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:20,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:20,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:20,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:11:20,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:20,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:20,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:20,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:20,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:20,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:20,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:20,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:11:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:20,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:20,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:20,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:20,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:20,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:20,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:20,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:20,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:11:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:20,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:11:20,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:20,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:20,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:20,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:20,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:20,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:20,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 10:11:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:20,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:20,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:21,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:21,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:21,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 10:11:21,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:11:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-27 10:11:21,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:21,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:11:21,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 10:11:21,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:11:21,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:21,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:21,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:21,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:21,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:21,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:21,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:21,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:21,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:21,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:21,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:21,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:21,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:11:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:21,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:21,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:21,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 10:11:22,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:11:22,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-27 10:11:22,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:11:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:11:22,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:11:22,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 10:11:22,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 10:11:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 10:11:22,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:22,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:22,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 10:11:22,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:11:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 10:11:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:22,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:22,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:11:22,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:22,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:22,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:11:22,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:22,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:11:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:11:22,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:11:22,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:11:22,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 10:11:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:22,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:22,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:22,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:22,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:11:22,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:22,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 10:11:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:22,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:22,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:22,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:22,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:22,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:22,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:11:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:22,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 10:11:22,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792034634] [2020-10-27 10:11:22,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:11:22,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 10:11:22,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804443872] [2020-10-27 10:11:22,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 10:11:22,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:11:22,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 10:11:22,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-27 10:11:22,769 INFO L87 Difference]: Start difference. First operand 637 states and 814 transitions. Second operand 18 states. [2020-10-27 10:11:23,193 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:11:23,906 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 10:11:24,458 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-27 10:11:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:11:32,754 INFO L93 Difference]: Finished difference Result 1474 states and 1930 transitions. [2020-10-27 10:11:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-27 10:11:32,755 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 121 [2020-10-27 10:11:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:11:32,762 INFO L225 Difference]: With dead ends: 1474 [2020-10-27 10:11:32,762 INFO L226 Difference]: Without dead ends: 859 [2020-10-27 10:11:32,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=205, Invalid=1355, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 10:11:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2020-10-27 10:11:32,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 733. [2020-10-27 10:11:32,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-10-27 10:11:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 936 transitions. [2020-10-27 10:11:32,878 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 936 transitions. Word has length 121 [2020-10-27 10:11:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:11:32,879 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 936 transitions. [2020-10-27 10:11:32,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 10:11:32,879 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 936 transitions. [2020-10-27 10:11:32,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-27 10:11:32,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:11:32,884 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:11:32,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 10:11:32,885 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:11:32,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:11:32,885 INFO L82 PathProgramCache]: Analyzing trace with hash -400708623, now seen corresponding path program 1 times [2020-10-27 10:11:32,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:11:32,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591443516] [2020-10-27 10:11:32,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:11:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:32,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:33,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:33,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-27 10:11:33,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:33,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-27 10:11:33,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:11:33,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:11:33,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:33,862 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:11:33,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:33,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:33,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:33,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:33,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:33,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 10:11:33,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:33,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:33,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:33,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:33,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:33,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:33,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:33,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:33,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:33,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:33,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:33,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:33,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:33,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:33,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:33,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:33,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:33,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:11:33,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:33,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:33,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:33,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:34,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:34,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:11:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:34,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:34,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:34,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:34,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:11:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:11:34,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 10:11:34,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:11:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 10:11:34,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 10:11:34,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:11:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:11:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:11:34,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:11:34,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:11:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:11:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:11:34,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 10:11:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:11:34,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 10:11:34,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:11:34,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:34,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:34,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:34,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:34,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:34,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:34,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:11:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:34,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:34,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:34,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:34,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 10:11:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:11:34,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 10:11:34,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:11:34,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:34,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:34,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:11:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:11:34,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 10:11:34,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:11:34,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:11:34,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:34,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:34,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:34,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:34,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:34,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:34,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:11:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:11:34,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:34,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:11:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:34,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:34,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-27 10:11:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:34,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:34,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:34,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:34,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-27 10:11:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:34,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:34,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:34,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:34,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:34,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:34,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:34,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:34,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:11:34,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:34,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:11:34,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591443516] [2020-10-27 10:11:34,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:11:34,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 10:11:34,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997807888] [2020-10-27 10:11:34,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 10:11:34,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:11:34,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 10:11:34,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-27 10:11:34,841 INFO L87 Difference]: Start difference. First operand 733 states and 936 transitions. Second operand 13 states. [2020-10-27 10:11:35,313 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:11:36,383 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:11:36,960 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:11:40,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:11:40,875 INFO L93 Difference]: Finished difference Result 1565 states and 2036 transitions. [2020-10-27 10:11:40,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 10:11:40,876 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 185 [2020-10-27 10:11:40,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:11:40,882 INFO L225 Difference]: With dead ends: 1565 [2020-10-27 10:11:40,883 INFO L226 Difference]: Without dead ends: 868 [2020-10-27 10:11:40,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-27 10:11:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-27 10:11:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 737. [2020-10-27 10:11:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-10-27 10:11:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 940 transitions. [2020-10-27 10:11:40,997 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 940 transitions. Word has length 185 [2020-10-27 10:11:40,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:11:40,997 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 940 transitions. [2020-10-27 10:11:40,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 10:11:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 940 transitions. [2020-10-27 10:11:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-27 10:11:41,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:11:41,002 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:11:41,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 10:11:41,002 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:11:41,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:11:41,003 INFO L82 PathProgramCache]: Analyzing trace with hash 135199658, now seen corresponding path program 1 times [2020-10-27 10:11:41,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:11:41,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249973199] [2020-10-27 10:11:41,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:11:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:41,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:41,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:41,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-27 10:11:41,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-10-27 10:11:41,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:11:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:11:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:11:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,234 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:11:42,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:42,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 10:11:42,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:42,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:42,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:42,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:42,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:42,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:11:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:42,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:11:42,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:42,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:11:42,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:11:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:11:42,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:42,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:11:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 10:11:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 10:11:42,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:11:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:11:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:11:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:11:42,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 10:11:42,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:11:42,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:11:42,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:11:42,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 10:11:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:11:42,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 10:11:42,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:11:42,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:42,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:42,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:42,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:42,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:42,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:42,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:11:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:42,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:42,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:42,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:42,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:42,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:11:42,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 10:11:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:11:42,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 10:11:42,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:11:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:42,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:11:42,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:11:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:11:42,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 10:11:42,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:11:42,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:11:42,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:42,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:42,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:42,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:42,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:42,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:42,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:42,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:42,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:42,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:42,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:43,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:11:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:43,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:43,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:11:43,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:43,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:43,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:43,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:43,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:11:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:43,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:43,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:43,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:43,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:43,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:43,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-27 10:11:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:43,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:43,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:43,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:43,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:43,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:43,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:43,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:43,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:43,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:43,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:43,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:43,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:43,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:43,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:43,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-27 10:11:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:43,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:43,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:43,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:43,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:43,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:43,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:11:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:43,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:11:43,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249973199] [2020-10-27 10:11:43,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:11:43,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 10:11:43,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209020144] [2020-10-27 10:11:43,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 10:11:43,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:11:43,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 10:11:43,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-27 10:11:43,227 INFO L87 Difference]: Start difference. First operand 737 states and 940 transitions. Second operand 14 states. [2020-10-27 10:11:43,714 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:11:44,910 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:11:45,576 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:11:46,223 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:11:50,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:11:50,536 INFO L93 Difference]: Finished difference Result 1601 states and 2084 transitions. [2020-10-27 10:11:50,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 10:11:50,537 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 189 [2020-10-27 10:11:50,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:11:50,543 INFO L225 Difference]: With dead ends: 1601 [2020-10-27 10:11:50,543 INFO L226 Difference]: Without dead ends: 900 [2020-10-27 10:11:50,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2020-10-27 10:11:50,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-10-27 10:11:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 753. [2020-10-27 10:11:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-27 10:11:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 960 transitions. [2020-10-27 10:11:50,647 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 960 transitions. Word has length 189 [2020-10-27 10:11:50,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:11:50,647 INFO L481 AbstractCegarLoop]: Abstraction has 753 states and 960 transitions. [2020-10-27 10:11:50,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 10:11:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 960 transitions. [2020-10-27 10:11:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-27 10:11:50,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:11:50,651 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-27 10:11:50,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 10:11:50,652 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:11:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:11:50,652 INFO L82 PathProgramCache]: Analyzing trace with hash 720357091, now seen corresponding path program 2 times [2020-10-27 10:11:50,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:11:50,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829871410] [2020-10-27 10:11:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:11:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:50,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:51,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:51,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-27 10:11:51,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:51,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-10-27 10:11:51,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:11:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:11:51,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:11:51,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,145 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:11:52,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:52,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 10:11:52,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:52,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:52,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:52,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:52,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:52,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:52,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:11:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:52,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:52,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:52,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:11:52,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:11:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:11:52,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:52,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:11:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 10:11:52,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 10:11:52,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:11:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:11:52,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:11:52,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 10:11:52,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 10:11:52,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:11:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:11:52,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:11:52,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 10:11:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:11:52,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 10:11:52,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:11:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:52,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:11:52,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:52,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:52,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:52,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:11:52,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:52,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:11:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:52,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:11:52,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:52,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:11:52,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:52,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:52,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:52,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 10:11:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:11:52,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 10:11:52,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:11:52,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:52,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:52,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:11:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:11:52,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:11:52,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:52,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:52,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:52,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:11:52,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 10:11:52,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:53,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:11:53,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:11:53,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:53,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:11:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:53,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:53,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:53,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:11:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:53,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:11:53,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:53,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:11:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:11:53,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:11:53,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:53,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:11:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:11:53,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:53,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:53,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-27 10:11:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:11:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:11:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:53,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:11:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:53,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:11:53,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:11:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:11:53,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-27 10:11:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:11:53,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:11:53,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:11:53,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:11:53,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:11:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:11:53,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:11:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:11:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:11:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:11:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:11:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:11:53,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829871410] [2020-10-27 10:11:53,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:11:53,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 10:11:53,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711091231] [2020-10-27 10:11:53,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 10:11:53,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:11:53,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 10:11:53,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-10-27 10:11:53,302 INFO L87 Difference]: Start difference. First operand 753 states and 960 transitions. Second operand 15 states. [2020-10-27 10:11:53,784 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:11:54,968 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:11:55,619 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:11:56,269 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:11:56,878 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:12:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:12:01,108 INFO L93 Difference]: Finished difference Result 1649 states and 2144 transitions. [2020-10-27 10:12:01,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 10:12:01,110 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 193 [2020-10-27 10:12:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:12:01,116 INFO L225 Difference]: With dead ends: 1649 [2020-10-27 10:12:01,116 INFO L226 Difference]: Without dead ends: 932 [2020-10-27 10:12:01,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=188, Invalid=462, Unknown=0, NotChecked=0, Total=650 [2020-10-27 10:12:01,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-10-27 10:12:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 769. [2020-10-27 10:12:01,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-10-27 10:12:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 980 transitions. [2020-10-27 10:12:01,224 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 980 transitions. Word has length 193 [2020-10-27 10:12:01,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:12:01,224 INFO L481 AbstractCegarLoop]: Abstraction has 769 states and 980 transitions. [2020-10-27 10:12:01,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 10:12:01,225 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 980 transitions. [2020-10-27 10:12:01,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-27 10:12:01,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:12:01,228 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:12:01,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 10:12:01,229 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:12:01,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:12:01,229 INFO L82 PathProgramCache]: Analyzing trace with hash 227954076, now seen corresponding path program 3 times [2020-10-27 10:12:01,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:12:01,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739371320] [2020-10-27 10:12:01,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:12:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:01,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:02,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:02,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-27 10:12:02,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1268 [2020-10-27 10:12:02,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:12:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:12:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 10:12:02,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:02,987 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:12:02,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:02,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 10:12:03,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:03,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:12:03,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:12:03,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:03,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:12:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:03,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:03,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:12:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:12:03,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:12:03,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:12:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 10:12:03,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 10:12:03,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:12:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:12:03,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 10:12:03,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:03,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 10:12:03,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:12:03,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:12:03,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 10:12:03,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 10:12:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:12:03,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 10:12:03,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:12:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:03,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:12:03,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:12:03,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:03,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:12:03,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:12:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:03,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:12:03,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:03,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:03,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:03,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 10:12:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:12:03,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 10:12:03,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:12:03,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:03,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:12:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:12:03,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:12:03,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:12:03,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:12:03,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:03,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:12:03,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:03,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:12:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:12:03,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:12:03,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:12:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:03,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-27 10:12:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:03,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:12:03,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:03,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:03,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-27 10:12:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:03,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:03,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:03,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:03,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:03,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:03,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:12:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:03,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:12:04,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739371320] [2020-10-27 10:12:04,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:12:04,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 10:12:04,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731249345] [2020-10-27 10:12:04,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 10:12:04,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:12:04,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 10:12:04,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-27 10:12:04,058 INFO L87 Difference]: Start difference. First operand 769 states and 980 transitions. Second operand 16 states. [2020-10-27 10:12:04,601 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:12:05,887 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:06,546 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:07,199 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:07,839 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:08,424 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:12:13,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:12:13,389 INFO L93 Difference]: Finished difference Result 1697 states and 2204 transitions. [2020-10-27 10:12:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 10:12:13,395 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 197 [2020-10-27 10:12:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:12:13,401 INFO L225 Difference]: With dead ends: 1697 [2020-10-27 10:12:13,401 INFO L226 Difference]: Without dead ends: 964 [2020-10-27 10:12:13,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=233, Invalid=579, Unknown=0, NotChecked=0, Total=812 [2020-10-27 10:12:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-27 10:12:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 785. [2020-10-27 10:12:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-27 10:12:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1000 transitions. [2020-10-27 10:12:13,517 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1000 transitions. Word has length 197 [2020-10-27 10:12:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:12:13,518 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 1000 transitions. [2020-10-27 10:12:13,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 10:12:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1000 transitions. [2020-10-27 10:12:13,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-27 10:12:13,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:12:13,522 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:12:13,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 10:12:13,522 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:12:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:12:13,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1749495851, now seen corresponding path program 4 times [2020-10-27 10:12:13,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:12:13,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722252090] [2020-10-27 10:12:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:12:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:13,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:14,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:14,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-27 10:12:14,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:14,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1368 [2020-10-27 10:12:14,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:12:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:12:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 10:12:14,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,461 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:12:15,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:15,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 10:12:15,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:15,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:12:15,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:15,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:15,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:15,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:15,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:15,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:15,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:15,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:15,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:15,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:15,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:12:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:15,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:15,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:15,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:15,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:12:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:12:15,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:12:15,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:12:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 10:12:15,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 10:12:15,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:12:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:12:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 10:12:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:15,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:15,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:15,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:15,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 10:12:15,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:15,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 10:12:15,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:12:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:12:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 10:12:15,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 10:12:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:12:16,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 10:12:16,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:12:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:16,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:12:16,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:16,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:12:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:16,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:16,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:12:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:16,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:12:16,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:16,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:16,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:16,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:16,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 10:12:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:12:16,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 10:12:16,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:12:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:16,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:16,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:12:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:12:16,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 10:12:16,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:12:16,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:12:16,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:16,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:12:16,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:16,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:16,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:16,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:12:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:12:16,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:16,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:12:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:16,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:12:16,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-27 10:12:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:16,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:16,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:12:16,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:16,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:16,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:16,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-27 10:12:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:16,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:16,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:16,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:16,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:16,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:16,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:12:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:16,712 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:12:16,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722252090] [2020-10-27 10:12:16,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:12:16,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 10:12:16,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135577891] [2020-10-27 10:12:16,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 10:12:16,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:12:16,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 10:12:16,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2020-10-27 10:12:16,720 INFO L87 Difference]: Start difference. First operand 785 states and 1000 transitions. Second operand 17 states. [2020-10-27 10:12:17,304 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:12:18,622 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:19,276 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:19,920 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:20,632 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:21,322 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:21,921 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:12:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:12:26,592 INFO L93 Difference]: Finished difference Result 1745 states and 2264 transitions. [2020-10-27 10:12:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 10:12:26,594 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 201 [2020-10-27 10:12:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:12:26,600 INFO L225 Difference]: With dead ends: 1745 [2020-10-27 10:12:26,600 INFO L226 Difference]: Without dead ends: 996 [2020-10-27 10:12:26,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=284, Invalid=708, Unknown=0, NotChecked=0, Total=992 [2020-10-27 10:12:26,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2020-10-27 10:12:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 801. [2020-10-27 10:12:26,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 801 states. [2020-10-27 10:12:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1020 transitions. [2020-10-27 10:12:26,724 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1020 transitions. Word has length 201 [2020-10-27 10:12:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:12:26,725 INFO L481 AbstractCegarLoop]: Abstraction has 801 states and 1020 transitions. [2020-10-27 10:12:26,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 10:12:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1020 transitions. [2020-10-27 10:12:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-27 10:12:26,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:12:26,729 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:12:26,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 10:12:26,730 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:12:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:12:26,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1810730382, now seen corresponding path program 5 times [2020-10-27 10:12:26,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:12:26,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998821020] [2020-10-27 10:12:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:12:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:26,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-27 10:12:28,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1590 [2020-10-27 10:12:28,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 10:12:28,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:12:28,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 10:12:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:28,797 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:12:28,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:28,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:28,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 10:12:28,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:28,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:28,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:28,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:28,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:12:28,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:28,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:28,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:28,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:28,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:28,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:28,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:12:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:28,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:28,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:28,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:28,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:28,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:28,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:28,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:28,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:12:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:28,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:28,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:28,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:12:28,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:28,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:28,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:28,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:28,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:28,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:28,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:12:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 10:12:29,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 10:12:29,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 10:12:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:12:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 10:12:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 10:12:29,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 10:12:29,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 10:12:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:12:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 10:12:29,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 10:12:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:12:29,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 10:12:29,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:12:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:29,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:12:29,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:29,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:29,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 10:12:29,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:12:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:29,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:12:29,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:29,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:29,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 10:12:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:12:29,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 10:12:29,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:12:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:29,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:12:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:12:29,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 10:12:29,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:12:29,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:12:29,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:29,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:12:29,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:29,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:29,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:12:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:12:29,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:29,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:12:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:29,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-27 10:12:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:29,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:12:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:29,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 10:12:29,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:29,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-27 10:12:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:29,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:29,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:29,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:29,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:29,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:29,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:29,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:29,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:12:29,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:29,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 7 proven. 45 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:12:30,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998821020] [2020-10-27 10:12:30,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:12:30,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 10:12:30,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293554839] [2020-10-27 10:12:30,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 10:12:30,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:12:30,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 10:12:30,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2020-10-27 10:12:30,025 INFO L87 Difference]: Start difference. First operand 801 states and 1020 transitions. Second operand 18 states. [2020-10-27 10:12:30,560 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:12:32,126 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:32,785 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:33,442 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:34,130 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:34,782 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:35,443 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:36,069 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:12:42,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:12:42,432 INFO L93 Difference]: Finished difference Result 1793 states and 2324 transitions. [2020-10-27 10:12:42,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 10:12:42,441 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 205 [2020-10-27 10:12:42,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:12:42,446 INFO L225 Difference]: With dead ends: 1793 [2020-10-27 10:12:42,447 INFO L226 Difference]: Without dead ends: 1028 [2020-10-27 10:12:42,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=341, Invalid=849, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 10:12:42,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2020-10-27 10:12:42,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 817. [2020-10-27 10:12:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2020-10-27 10:12:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1040 transitions. [2020-10-27 10:12:42,589 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1040 transitions. Word has length 205 [2020-10-27 10:12:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:12:42,589 INFO L481 AbstractCegarLoop]: Abstraction has 817 states and 1040 transitions. [2020-10-27 10:12:42,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 10:12:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1040 transitions. [2020-10-27 10:12:42,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-27 10:12:42,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:12:42,594 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:12:42,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 10:12:42,594 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:12:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:12:42,595 INFO L82 PathProgramCache]: Analyzing trace with hash 2007680711, now seen corresponding path program 6 times [2020-10-27 10:12:42,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:12:42,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330873637] [2020-10-27 10:12:42,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:12:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:42,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:44,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:44,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-27 10:12:44,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:44,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1990 [2020-10-27 10:12:44,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 10:12:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:12:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 10:12:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,058 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:12:45,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:45,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 10:12:45,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:45,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:12:45,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:45,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:45,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:45,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:45,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:12:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:45,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:45,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:45,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:45,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:12:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:12:45,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:12:45,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:12:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 10:12:45,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-27 10:12:45,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 10:12:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:12:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 10:12:45,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 10:12:45,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-27 10:12:45,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 10:12:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:12:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 10:12:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 10:12:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:12:45,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 10:12:45,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:12:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:45,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:12:45,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:45,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:45,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:45,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:45,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:12:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:45,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:12:45,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:45,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:45,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:45,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:45,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:45,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:45,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:45,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:45,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 10:12:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:12:46,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 10:12:46,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:12:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:46,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:46,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:12:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:12:46,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 10:12:46,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:12:46,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:12:46,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:12:46,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:12:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:12:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:46,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:46,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:12:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:46,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:12:46,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:12:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:12:46,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:12:46,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:12:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:12:46,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:46,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-27 10:12:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:12:46,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:46,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:12:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:12:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:46,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 10:12:46,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:12:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 10:12:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:46,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:12:46,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:12:46,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:12:46,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:12:46,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:12:46,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:12:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:12:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:12:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:12:46,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:12:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 7 proven. 66 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:12:46,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330873637] [2020-10-27 10:12:46,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:12:46,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 10:12:46,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395552392] [2020-10-27 10:12:46,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 10:12:46,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:12:46,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 10:12:46,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2020-10-27 10:12:46,398 INFO L87 Difference]: Start difference. First operand 817 states and 1040 transitions. Second operand 19 states. [2020-10-27 10:12:46,938 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:12:48,474 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:49,135 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:49,792 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:50,421 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:51,117 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:51,814 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:52,518 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:12:53,130 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:12:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:12:59,343 INFO L93 Difference]: Finished difference Result 1841 states and 2384 transitions. [2020-10-27 10:12:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 10:12:59,344 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 209 [2020-10-27 10:12:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:12:59,350 INFO L225 Difference]: With dead ends: 1841 [2020-10-27 10:12:59,350 INFO L226 Difference]: Without dead ends: 1060 [2020-10-27 10:12:59,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 10:12:59,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-10-27 10:12:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 833. [2020-10-27 10:12:59,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-10-27 10:12:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1060 transitions. [2020-10-27 10:12:59,494 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1060 transitions. Word has length 209 [2020-10-27 10:12:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:12:59,494 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 1060 transitions. [2020-10-27 10:12:59,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 10:12:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1060 transitions. [2020-10-27 10:12:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-27 10:12:59,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:12:59,499 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:12:59,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 10:12:59,499 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:12:59,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:12:59,500 INFO L82 PathProgramCache]: Analyzing trace with hash -2092516480, now seen corresponding path program 7 times [2020-10-27 10:12:59,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:12:59,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129785150] [2020-10-27 10:12:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:12:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:12:59,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:01,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:01,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-27 10:13:01,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:01,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2033 [2020-10-27 10:13:01,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:13:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 10:13:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 10:13:01,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,048 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 10:13:02,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:13:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:02,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:13:02,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:13:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:13:02,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:13:02,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:02,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:02,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:13:02,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:13:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:13:02,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 10:13:02,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 10:13:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:13:02,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:13:02,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:13:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:02,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:02,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:13:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:13:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 10:13:02,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 10:13:02,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:13:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 10:13:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 10:13:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 10:13:02,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-27 10:13:02,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:13:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:13:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 10:13:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 10:13:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 10:13:02,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:13:02,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 10:13:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:13:02,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:13:02,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:02,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:13:02,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:13:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:13:02,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:02,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 10:13:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:02,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:02,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:02,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:13:02,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:13:02,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:03,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:03,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:13:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:13:03,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:03,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 10:13:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 10:13:03,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 10:13:03,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 10:13:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:13:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 10:13:03,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 10:13:03,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 10:13:03,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:13:03,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 10:13:03,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:13:03,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:13:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:03,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:03,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:13:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:13:03,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:03,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:13:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:13:03,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:13:03,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 10:13:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:13:03,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:13:03,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-27 10:13:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:13:03,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:03,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 10:13:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:13:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:03,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 10:13:03,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:13:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-27 10:13:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:13:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:13:03,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:13:03,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:13:03,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:13:03,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:13:03,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:13:03,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:13:03,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:13:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:13:03,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:13:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 7 proven. 91 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-27 10:13:03,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129785150] [2020-10-27 10:13:03,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:13:03,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 10:13:03,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83649884] [2020-10-27 10:13:03,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 10:13:03,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:13:03,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 10:13:03,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-10-27 10:13:03,404 INFO L87 Difference]: Start difference. First operand 833 states and 1060 transitions. Second operand 20 states. [2020-10-27 10:13:03,949 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 10:13:05,361 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:06,018 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:06,703 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:07,346 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:07,998 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:08,655 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:09,327 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:10,005 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 10:13:10,555 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 10:13:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:13:15,896 INFO L93 Difference]: Finished difference Result 1865 states and 2412 transitions. [2020-10-27 10:13:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 10:13:15,897 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 213 [2020-10-27 10:13:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:13:15,904 INFO L225 Difference]: With dead ends: 1865 [2020-10-27 10:13:15,904 INFO L226 Difference]: Without dead ends: 1068 [2020-10-27 10:13:15,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=473, Invalid=1167, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 10:13:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-10-27 10:13:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 849. [2020-10-27 10:13:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-10-27 10:13:16,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1080 transitions. [2020-10-27 10:13:16,085 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1080 transitions. Word has length 213 [2020-10-27 10:13:16,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:13:16,085 INFO L481 AbstractCegarLoop]: Abstraction has 849 states and 1080 transitions. [2020-10-27 10:13:16,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 10:13:16,085 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1080 transitions. [2020-10-27 10:13:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-27 10:13:16,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:13:16,089 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:13:16,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 10:13:16,089 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:13:16,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:13:16,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1040733255, now seen corresponding path program 8 times [2020-10-27 10:13:16,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:13:16,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561832314] [2020-10-27 10:13:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:13:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 10:13:16,210 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 10:13:16,210 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 10:13:16,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 10:13:16,227 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-27 10:13:16,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:13:16 BoogieIcfgContainer [2020-10-27 10:13:16,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 10:13:16,276 INFO L168 Benchmark]: Toolchain (without parser) took 151714.28 ms. Allocated memory was 125.8 MB in the beginning and 1.1 GB in the end (delta: 930.1 MB). Free memory was 93.4 MB in the beginning and 505.6 MB in the end (delta: -412.3 MB). Peak memory consumption was 518.8 MB. Max. memory is 8.0 GB. [2020-10-27 10:13:16,279 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 86.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 10:13:16,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1701.98 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 92.8 MB in the beginning and 114.3 MB in the end (delta: -21.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2020-10-27 10:13:16,285 INFO L168 Benchmark]: Boogie Preprocessor took 196.02 ms. Allocated memory is still 159.4 MB. Free memory was 114.3 MB in the beginning and 108.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-27 10:13:16,285 INFO L168 Benchmark]: RCFGBuilder took 1871.29 ms. Allocated memory was 159.4 MB in the beginning and 244.3 MB in the end (delta: 84.9 MB). Free memory was 108.0 MB in the beginning and 145.1 MB in the end (delta: -37.1 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. [2020-10-27 10:13:16,286 INFO L168 Benchmark]: TraceAbstraction took 147929.54 ms. Allocated memory was 244.3 MB in the beginning and 1.1 GB in the end (delta: 811.6 MB). Free memory was 144.6 MB in the beginning and 505.6 MB in the end (delta: -361.0 MB). Peak memory consumption was 450.1 MB. Max. memory is 8.0 GB. [2020-10-27 10:13:16,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 86.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1701.98 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 92.8 MB in the beginning and 114.3 MB in the end (delta: -21.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 196.02 ms. Allocated memory is still 159.4 MB. Free memory was 114.3 MB in the beginning and 108.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1871.29 ms. Allocated memory was 159.4 MB in the beginning and 244.3 MB in the end (delta: 84.9 MB). Free memory was 108.0 MB in the beginning and 145.1 MB in the end (delta: -37.1 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 147929.54 ms. Allocated memory was 244.3 MB in the beginning and 1.1 GB in the end (delta: 811.6 MB). Free memory was 144.6 MB in the beginning and 505.6 MB in the end (delta: -361.0 MB). Peak memory consumption was 450.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 5431. Possible FailurePath: [L5377] int LDV_IN_INTERRUPT = 1; [L5378] int ref_cnt ; [L5379] int ldv_state_variable_1 ; [L5380] struct archdr *capmode_proto_group0 ; [L5381] int ldv_state_variable_0 ; [L5382] struct net_device *capmode_proto_group1 ; [L5586-L5588] static struct ArcProto capmode_proto = {114, 508, 0, & rx, & build_header, & prepare_tx, (int (*)(struct net_device * , int ))0, & ack_tx}; [L5630] int ldv_retval_0 ; [L5845] Element set_impl[15] ; [L5846] int last_index = 0; [L5980] Set LDV_SKBS ; [L5647] int ldvarg7 ; [L5648] int tmp ; [L5649] struct sk_buff *ldvarg3 ; [L5650] void *tmp___0 ; [L5651] int ldvarg0 ; [L5652] int tmp___1 ; [L5653] int ldvarg5 ; [L5654] int tmp___2 ; [L5655] int ldvarg6 ; [L5656] int tmp___3 ; [L5657] int ldvarg1 ; [L5658] int tmp___4 ; [L5659] unsigned short ldvarg4 ; [L5660] unsigned short tmp___5 ; [L5661] uint8_t ldvarg2 ; [L5662] int tmp___6 ; [L5663] int tmp___7 ; [L5664] int tmp___8 ; [L5666] tmp = __VERIFIER_nondet_int() [L5667] ldvarg7 = tmp [L5668] CALL, EXPR ldv_successful_zalloc(232UL) [L5296] EXPR, FCALL calloc(1UL, __size) [L5296] void *p = calloc(1UL, __size); [L5297] CALL assume_abort_if_not(p != (void *)0) [L5293] COND FALSE !(!cond) [L5297] RET assume_abort_if_not(p != (void *)0) [L5298] return p; [L5668] RET, EXPR ldv_successful_zalloc(232UL) [L5668] tmp___0 = ldv_successful_zalloc(232UL) [L5669] ldvarg3 = (struct sk_buff *)tmp___0 [L5670] tmp___1 = __VERIFIER_nondet_int() [L5671] ldvarg0 = tmp___1 [L5672] tmp___2 = __VERIFIER_nondet_int() [L5673] ldvarg5 = tmp___2 [L5674] tmp___3 = __VERIFIER_nondet_int() [L5675] ldvarg6 = tmp___3 [L5676] tmp___4 = __VERIFIER_nondet_int() [L5677] ldvarg1 = tmp___4 [L5678] tmp___5 = __VERIFIER_nondet_ushort() [L5679] ldvarg4 = tmp___5 [L5680] CALL ldv_initialize() [L5999] CALL ldv_set_init(LDV_SKBS) [L5851] set = set_impl [L5852] last_index = 0 [L5999] RET ldv_set_init(LDV_SKBS) [L5680] RET ldv_initialize() [L5681] FCALL memset((void *)(& ldvarg2), 0, 1UL) [L5682] ldv_state_variable_1 = 0 [L5683] ref_cnt = 0 [L5684] ldv_state_variable_0 = 1 [L5686] tmp___6 = __VERIFIER_nondet_int() [L5688] case 0: [L5727] case 1: [L5728] COND TRUE ldv_state_variable_0 != 0 [L5729] tmp___8 = __VERIFIER_nondet_int() [L5731] case 0: [L5739] case 1: [L5740] COND TRUE ldv_state_variable_0 == 1 [L5741] CALL, EXPR capmode_module_init() [L5619] CALL arcnet_cap_init() [L5591] int count ; [L5593] count = 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND TRUE count <= 8 [L5596] EXPR arc_proto_map[count] [L5596] COND TRUE (unsigned long )arc_proto_map[count] == (unsigned long )arc_proto_default [L5597] arc_proto_map[count] = & capmode_proto [L5600] count = count + 1 [L5602] COND FALSE !(count <= 8) [L5606] COND TRUE (unsigned long )arc_bcast_proto == (unsigned long )arc_proto_default [L5607] arc_bcast_proto = & capmode_proto [L5610] arc_proto_default = & capmode_proto [L5611] arc_raw_proto = & capmode_proto [L5619] RET arcnet_cap_init() [L5620] return (0); [L5741] RET, EXPR capmode_module_init() [L5741] ldv_retval_0 = capmode_module_init() [L5742] COND TRUE ldv_retval_0 == 0 [L5743] ldv_state_variable_0 = 3 [L5744] ldv_state_variable_1 = 1 [L5745] CALL ldv_initialize_ArcProto_1() [L5635] void *tmp ; [L5636] void *tmp___0 ; [L5638] CALL, EXPR ldv_successful_zalloc(20UL) [L5296] EXPR, FCALL calloc(1UL, __size) [L5296] void *p = calloc(1UL, __size); [L5297] CALL assume_abort_if_not(p != (void *)0) [L5293] COND FALSE !(!cond) [L5297] RET assume_abort_if_not(p != (void *)0) [L5298] return p; [L5638] RET, EXPR ldv_successful_zalloc(20UL) [L5638] tmp = ldv_successful_zalloc(20UL) [L5639] capmode_proto_group0 = (struct archdr *)tmp [L5640] CALL, EXPR ldv_successful_zalloc(3264UL) [L5296] EXPR, FCALL calloc(1UL, __size) [L5296] void *p = calloc(1UL, __size); [L5297] CALL assume_abort_if_not(p != (void *)0) [L5293] COND FALSE !(!cond) [L5297] RET assume_abort_if_not(p != (void *)0) [L5298] return p; [L5640] RET, EXPR ldv_successful_zalloc(3264UL) [L5640] tmp___0 = ldv_successful_zalloc(3264UL) [L5641] capmode_proto_group1 = (struct net_device *)tmp___0 [L5745] RET ldv_initialize_ArcProto_1() [L5748] COND FALSE !(ldv_retval_0 != 0) [L5686] tmp___6 = __VERIFIER_nondet_int() [L5688] case 0: [L5689] COND TRUE ldv_state_variable_1 != 0 [L5690] tmp___7 = __VERIFIER_nondet_int() [L5692] case 0: [L5699] case 1: [L5706] case 2: [L5713] case 3: [L5714] COND TRUE ldv_state_variable_1 == 1 [L5715] CALL rx(capmode_proto_group1, ldvarg1, capmode_proto_group0, ldvarg0) [L5408] struct arcnet_local *lp ; [L5409] void *tmp ; [L5410] struct sk_buff *skb ; [L5411] struct archdr *pkt ; [L5412] char *pktbuf ; [L5413] char *pkthdrbuf ; [L5414] int ofs ; [L5415] unsigned char *tmp___0 ; [L5416] size_t __len ; [L5417] void *__ret ; [L5418] size_t __len___0 ; [L5419] void *__ret___0 ; [L5421] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5387] return ((void *)dev + 3264U); [L5421] RET, EXPR netdev_priv((struct net_device const *)dev) [L5421] tmp = netdev_priv((struct net_device const *)dev) [L5422] lp = (struct arcnet_local *)tmp [L5423] pkt = pkthdr [L5424] COND FALSE !(length > 256) [L5427] ofs = 256 - length [L5429] CALL, EXPR ldv_alloc_skb_14((unsigned int )length + 8U, 32U) [L5817] struct sk_buff *tmp ; [L5819] CALL, EXPR ldv_skb_alloc() [L5983] void *skb ; [L5984] void *tmp___7 ; [L5986] CALL, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5296] EXPR, FCALL calloc(1UL, __size) [L5296] void *p = calloc(1UL, __size); [L5297] CALL assume_abort_if_not(p != (void *)0) [L5293] COND FALSE !(!cond) [L5297] RET assume_abort_if_not(p != (void *)0) [L5298] return p; [L5986] RET, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5986] tmp___7 = ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5987] skb = (struct sk_buff___0 *)tmp___7 [L5988] COND FALSE !(! skb) [L5991] CALL ldv_set_add(LDV_SKBS, skb) [L5859] int i ; [L5861] i = 0 [L5862] COND TRUE 1 [L5863] COND FALSE !(i < last_index) [L5873] COND TRUE last_index < 15 [L5874] set_impl[last_index] = e [L5875] last_index = last_index + 1 [L5991] RET ldv_set_add(LDV_SKBS, skb) [L5992] return (skb); [L5819] RET, EXPR ldv_skb_alloc() [L5819] tmp = ldv_skb_alloc() [L5820] COND TRUE \read(*tmp) [L5822] CALL, EXPR ldv_malloc(size) [L5302] void *p ; [L5303] void *tmp ; [L5304] int tmp___0 ; [L5306] tmp___0 = __VERIFIER_nondet_int() [L5307] COND TRUE tmp___0 != 0 [L5308] return ((void *)0); [L5822] RET, EXPR ldv_malloc(size) [L5822] tmp->head = ldv_malloc(size) [L5823] EXPR tmp->head [L5823] tmp->data = tmp->head [L5825] return (tmp); [L5429] RET, EXPR ldv_alloc_skb_14((unsigned int )length + 8U, 32U) [L5429] skb = ldv_alloc_skb_14((unsigned int )length + 8U, 32U) [L5430] COND TRUE (unsigned long )skb == (unsigned long )((struct sk_buff *)0) [L5431] COND TRUE arcnet_debug & 1 [L5435] EXPR dev->stats.rx_dropped [L5435] dev->stats.rx_dropped = dev->stats.rx_dropped + 1UL [L5715] RET rx(capmode_proto_group1, ldvarg1, capmode_proto_group0, ldvarg0) [L5716] ldv_state_variable_1 = 1 [L5686] tmp___6 = __VERIFIER_nondet_int() [L5688] case 0: [L5727] case 1: [L5728] COND TRUE ldv_state_variable_0 != 0 [L5729] tmp___8 = __VERIFIER_nondet_int() [L5731] case 0: [L5732] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L5733] CALL capmode_module_exit() [L5626] FCALL arcnet_unregister_proto(& capmode_proto) [L5733] RET capmode_module_exit() [L5734] ldv_state_variable_0 = 2 [L5769] CALL ldv_check_final_state() [L6050] int tmp___7 ; [L6052] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L5941] return (last_index == 0); [L6052] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L6052] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L6053] COND FALSE !(\read(tmp___7)) [L6055] CALL ldv_error() [L5354] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--capmode.ko-entry_point.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 64 procedures, 412 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 147.8s, OverallIterations: 12, TraceHistogramMax: 8, AutomataDifference: 108.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4067 SDtfs, 9542 SDslu, 15714 SDs, 0 SdLazy, 19171 SolverSat, 5969 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 801 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1875 ImplicationChecksByTransitivity, 45.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=849occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1801 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 35.7s InterpolantComputationTime, 2053 NumberOfCodeBlocks, 2053 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1825 ConstructedInterpolants, 0 QuantifiedInterpolants, 1023163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 770/1022 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...