/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=DEEPEST --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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 03:13:17,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 03:13:17,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 03:13:17,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 03:13:17,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 03:13:17,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 03:13:17,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 03:13:17,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 03:13:17,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 03:13:17,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 03:13:17,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 03:13:17,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 03:13:17,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 03:13:17,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 03:13:17,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 03:13:17,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 03:13:17,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 03:13:17,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 03:13:17,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 03:13:17,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 03:13:17,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 03:13:17,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 03:13:17,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 03:13:17,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 03:13:17,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 03:13:17,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 03:13:17,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 03:13:17,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 03:13:17,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 03:13:17,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 03:13:17,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 03:13:17,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 03:13:17,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 03:13:17,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 03:13:17,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 03:13:17,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 03:13:17,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 03:13:17,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 03:13:17,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 03:13:17,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 03:13:17,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 03:13:17,699 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 [2020-10-28 03:13:17,733 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 03:13:17,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 03:13:17,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 03:13:17,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 03:13:17,739 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 03:13:17,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 03:13:17,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 03:13:17,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 03:13:17,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 03:13:17,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 03:13:17,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 03:13:17,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 03:13:17,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 03:13:17,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 03:13:17,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 03:13:17,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 03:13:17,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 03:13:17,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 03:13:17,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 03:13:17,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 03:13:17,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 03:13:17,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 03:13:17,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 03:13:17,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 03:13:17,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 03:13:17,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 03:13:17,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 03:13:17,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 03:13:18,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 03:13:18,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 03:13:18,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 03:13:18,198 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 03:13:18,199 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 03:13:18,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-28 03:13:18,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dab3160c/ee867098007d47edb46899ff1d042e11/FLAG0ab2b429b [2020-10-28 03:13:19,327 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 03:13:19,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-28 03:13:19,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dab3160c/ee867098007d47edb46899ff1d042e11/FLAG0ab2b429b [2020-10-28 03:13:19,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dab3160c/ee867098007d47edb46899ff1d042e11 [2020-10-28 03:13:19,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 03:13:19,746 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 03:13:19,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 03:13:19,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 03:13:19,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 03:13:19,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:13:19" (1/1) ... [2020-10-28 03:13:19,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db1d44c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:19, skipping insertion in model container [2020-10-28 03:13:19,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:13:19" (1/1) ... [2020-10-28 03:13:19,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 03:13:19,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 03:13:21,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:13:21,344 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 03:13:21,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:13:22,067 INFO L208 MainTranslator]: Completed translation [2020-10-28 03:13:22,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22 WrapperNode [2020-10-28 03:13:22,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 03:13:22,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 03:13:22,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 03:13:22,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 03:13:22,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (1/1) ... [2020-10-28 03:13:22,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (1/1) ... [2020-10-28 03:13:22,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (1/1) ... [2020-10-28 03:13:22,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (1/1) ... [2020-10-28 03:13:22,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (1/1) ... [2020-10-28 03:13:22,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (1/1) ... [2020-10-28 03:13:22,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (1/1) ... [2020-10-28 03:13:22,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 03:13:22,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 03:13:22,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 03:13:22,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 03:13:22,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (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 [2020-10-28 03:13:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 03:13:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 03:13:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 03:13:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 03:13:22,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-28 03:13:22,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-28 03:13:22,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-28 03:13:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-10-28 03:13:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-10-28 03:13:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-28 03:13:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-28 03:13:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-28 03:13:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-28 03:13:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 03:13:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-28 03:13:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-28 03:13:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2020-10-28 03:13:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 03:13:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 03:13:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-28 03:13:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-28 03:13:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 03:13:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 03:13:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 03:13:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 03:13:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 03:13:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 03:13:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 03:13:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-28 03:13:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-28 03:13:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-28 03:13:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-28 03:13:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-28 03:13:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-28 03:13:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2020-10-28 03:13:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2020-10-28 03:13:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd_msg [2020-10-28 03:13:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_wait_cmd_msg [2020-10-28 03:13:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2020-10-28 03:13:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2020-10-28 03:13:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_close [2020-10-28 03:13:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_version [2020-10-28 03:13:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_set_mode [2020-10-28 03:13:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_err_msg [2020-10-28 03:13:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_can_msg [2020-10-28 03:13:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2020-10-28 03:13:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_write_bulk_callback [2020-10-28 03:13:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start_xmit [2020-10-28 03:13:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_get_berr_counter [2020-10-28 03:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start [2020-10-28 03:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_open [2020-10-28 03:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2020-10-28 03:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_close [2020-10-28 03:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_probe [2020-10-28 03:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2020-10-28 03:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_init [2020-10-28 03:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_exit [2020-10-28 03:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-28 03:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-28 03:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 03:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-28 03:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2020-10-28 03:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-28 03:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2020-10-28 03:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-28 03:13:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-28 03:13:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-28 03:13:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-28 03:13:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-28 03:13:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-28 03:13:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-28 03:13:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-28 03:13:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2020-10-28 03:13:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_16 [2020-10-28 03:13:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_18 [2020-10-28 03:13:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_19 [2020-10-28 03:13:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-28 03:13:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-28 03:13:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-28 03:13:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-28 03:13:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-28 03:13:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-28 03:13:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-28 03:13:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-28 03:13:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-28 03:13:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-28 03:13:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-28 03:13:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-28 03:13:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-28 03:13:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-28 03:13:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-28 03:13:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-28 03:13:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 03:13:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 03:13:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-28 03:13:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-28 03:13:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 03:13:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-28 03:13:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2020-10-28 03:13:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2020-10-28 03:13:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2020-10-28 03:13:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2020-10-28 03:13:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2020-10-28 03:13:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2020-10-28 03:13:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2020-10-28 03:13:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2020-10-28 03:13:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2020-10-28 03:13:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-28 03:13:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 03:13:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2020-10-28 03:13:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2020-10-28 03:13:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-28 03:13:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 03:13:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-28 03:13:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-28 03:13:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-28 03:13:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 03:13:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-28 03:13:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-28 03:13:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-28 03:13:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-10-28 03:13:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-28 03:13:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-28 03:13:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2020-10-28 03:13:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 03:13:22,502 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2020-10-28 03:13:22,503 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-28 03:13:22,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-28 03:13:22,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-28 03:13:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-28 03:13:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-28 03:13:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-28 03:13:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-28 03:13:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-28 03:13:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2020-10-28 03:13:22,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-28 03:13:22,511 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 03:13:22,512 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 03:13:22,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 03:13:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 03:13:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 03:13:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 03:13:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 03:13:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 03:13:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 03:13:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-28 03:13:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 03:13:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 03:13:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 03:13:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-28 03:13:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 03:13:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-28 03:13:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2020-10-28 03:13:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 03:13:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 03:13:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 03:13:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 03:13:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 03:13:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-28 03:13:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-28 03:13:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 03:13:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 03:13:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-28 03:13:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_16 [2020-10-28 03:13:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2020-10-28 03:13:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-28 03:13:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-28 03:13:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_18 [2020-10-28 03:13:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-28 03:13:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_19 [2020-10-28 03:13:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-28 03:13:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 03:13:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2020-10-28 03:13:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2020-10-28 03:13:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-28 03:13:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-28 03:13:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-28 03:13:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-28 03:13:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-28 03:13:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-28 03:13:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-28 03:13:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-28 03:13:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-28 03:13:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-28 03:13:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-28 03:13:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-28 03:13:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-28 03:13:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-28 03:13:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-28 03:13:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2020-10-28 03:13:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-28 03:13:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-28 03:13:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-28 03:13:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-28 03:13:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-28 03:13:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-28 03:13:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 03:13:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 03:13:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 03:13:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-28 03:13:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-28 03:13:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-28 03:13:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2020-10-28 03:13:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-10-28 03:13:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-28 03:13:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-28 03:13:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-28 03:13:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-28 03:13:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2020-10-28 03:13:22,537 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2020-10-28 03:13:22,538 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2020-10-28 03:13:22,539 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2020-10-28 03:13:22,539 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2020-10-28 03:13:22,539 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2020-10-28 03:13:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2020-10-28 03:13:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd_msg [2020-10-28 03:13:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_wait_cmd_msg [2020-10-28 03:13:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2020-10-28 03:13:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 03:13:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_close [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_version [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_set_mode [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_err_msg [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_can_msg [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_write_bulk_callback [2020-10-28 03:13:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start_xmit [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_get_berr_counter [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_open [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_close [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_probe [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_init [2020-10-28 03:13:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_exit [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-28 03:13:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-28 03:13:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 03:13:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 03:13:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 03:13:24,122 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 03:13:28,869 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-28 03:13:29,530 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 03:13:29,531 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 03:13:29,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:13:29 BoogieIcfgContainer [2020-10-28 03:13:29,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 03:13:29,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 03:13:29,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 03:13:29,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 03:13:29,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:13:19" (1/3) ... [2020-10-28 03:13:29,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d0809c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:13:29, skipping insertion in model container [2020-10-28 03:13:29,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:13:22" (2/3) ... [2020-10-28 03:13:29,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d0809c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:13:29, skipping insertion in model container [2020-10-28 03:13:29,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:13:29" (3/3) ... [2020-10-28 03:13:29,544 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-28 03:13:29,556 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 03:13:29,563 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 03:13:29,576 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 03:13:29,609 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 03:13:29,610 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 03:13:29,610 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 03:13:29,610 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 03:13:29,610 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 03:13:29,610 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 03:13:29,610 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 03:13:29,610 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 03:13:29,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states. [2020-10-28 03:13:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 03:13:29,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:13:29,662 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 03:13:29,662 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:13:29,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:13:29,669 INFO L82 PathProgramCache]: Analyzing trace with hash 178053185, now seen corresponding path program 1 times [2020-10-28 03:13:29,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:13:29,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283728177] [2020-10-28 03:13:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:13:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:30,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:33,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:33,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 03:13:33,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:13:33,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3397 [2020-10-28 03:13:33,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:13:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 03:13:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 03:13:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 03:13:34,994 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 03:13:34,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:13:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:35,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:35,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:35,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:13:35,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-28 03:13:35,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:35,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:13:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:35,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:35,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:35,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:13:35,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:35,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 03:13:35,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:35,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:35,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:35,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:35,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:35,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:13:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:35,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:35,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:35,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:13:35,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:35,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 03:13:35,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:35,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:35,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:13:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:35,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:35,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:35,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:13:35,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:13:35,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:35,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 03:13:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:35,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:35,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:35,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 03:13:35,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 03:13:35,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 03:13:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:35,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:35,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:13:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:35,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:35,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:35,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:13:35,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:35,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:13:35,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:35,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 33 [2020-10-28 03:13:35,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:13:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:13:35,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:13:35,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:13:35,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:13:35,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:13:35,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:13:35,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:13:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:13:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:13:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:13:35,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:13:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 03:13:35,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283728177] [2020-10-28 03:13:35,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:13:35,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 03:13:35,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478860888] [2020-10-28 03:13:35,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 03:13:35,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:13:35,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 03:13:35,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 03:13:35,555 INFO L87 Difference]: Start difference. First operand 1000 states. Second operand 6 states. [2020-10-28 03:13:43,257 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 03:14:19,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:14:19,830 INFO L93 Difference]: Finished difference Result 3380 states and 4550 transitions. [2020-10-28 03:14:19,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 03:14:19,838 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2020-10-28 03:14:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:14:19,878 INFO L225 Difference]: With dead ends: 3380 [2020-10-28 03:14:19,878 INFO L226 Difference]: Without dead ends: 2389 [2020-10-28 03:14:19,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 03:14:19,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2020-10-28 03:14:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1809. [2020-10-28 03:14:20,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1809 states. [2020-10-28 03:14:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2252 transitions. [2020-10-28 03:14:20,634 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2252 transitions. Word has length 47 [2020-10-28 03:14:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:14:20,635 INFO L481 AbstractCegarLoop]: Abstraction has 1809 states and 2252 transitions. [2020-10-28 03:14:20,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 03:14:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2252 transitions. [2020-10-28 03:14:20,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 03:14:20,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:14:20,648 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:14:20,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 03:14:20,649 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:14:20,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:14:20,649 INFO L82 PathProgramCache]: Analyzing trace with hash 236160945, now seen corresponding path program 1 times [2020-10-28 03:14:20,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:14:20,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804648131] [2020-10-28 03:14:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:14:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:20,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:22,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:22,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 03:14:22,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:22,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1332 [2020-10-28 03:14:22,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:14:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:14:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 03:14:22,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:23,392 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 03:14:23,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:14:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:23,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:23,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:23,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:14:23,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:23,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-28 03:14:23,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:14:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:14:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:23,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:14:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:23,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:23,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:23,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:14:23,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 03:14:23,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:14:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:14:23,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:23,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:14:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:23,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:23,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:23,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:14:23,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 03:14:23,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:14:23,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:23,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:14:23,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:23,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:14:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:23,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:23,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:14:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:14:23,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:14:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:14:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:23,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 03:14:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:24,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:24,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:24,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:14:24,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:24,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 03:14:24,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:14:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:14:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:14:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:14:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:24,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:24,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:24,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:14:24,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:24,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 03:14:24,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:24,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:24,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:24,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:14:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:24,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:24,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:24,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:14:24,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:24,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:14:24,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:24,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:24,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:24,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:14:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:24,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:24,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:24,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:14:24,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 03:14:24,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:14:24,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:14:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:14:24,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:14:24,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:14:24,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:14:24,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:14:24,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:14:24,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:14:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:14:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:14:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:14:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:14:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 03:14:24,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804648131] [2020-10-28 03:14:24,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:14:24,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:14:24,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953602596] [2020-10-28 03:14:24,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:14:24,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:14:24,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:14:24,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:14:24,275 INFO L87 Difference]: Start difference. First operand 1809 states and 2252 transitions. Second operand 7 states. [2020-10-28 03:14:30,064 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-28 03:15:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:15:02,529 INFO L93 Difference]: Finished difference Result 6573 states and 8690 transitions. [2020-10-28 03:15:02,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 03:15:02,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-28 03:15:02,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:15:02,562 INFO L225 Difference]: With dead ends: 6573 [2020-10-28 03:15:02,562 INFO L226 Difference]: Without dead ends: 4778 [2020-10-28 03:15:02,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-28 03:15:02,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4778 states. [2020-10-28 03:15:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4778 to 3809. [2020-10-28 03:15:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3809 states. [2020-10-28 03:15:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3809 states to 3809 states and 4824 transitions. [2020-10-28 03:15:03,509 INFO L78 Accepts]: Start accepts. Automaton has 3809 states and 4824 transitions. Word has length 63 [2020-10-28 03:15:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:15:03,509 INFO L481 AbstractCegarLoop]: Abstraction has 3809 states and 4824 transitions. [2020-10-28 03:15:03,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:15:03,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3809 states and 4824 transitions. [2020-10-28 03:15:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 03:15:03,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:15:03,516 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:15:03,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 03:15:03,516 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:15:03,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:15:03,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1869083096, now seen corresponding path program 1 times [2020-10-28 03:15:03,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:15:03,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388887077] [2020-10-28 03:15:03,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:15:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:03,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:04,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:04,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 03:15:04,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:04,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-10-28 03:15:04,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:04,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:04,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:15:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 03:15:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:05,557 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 03:15:05,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:15:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:05,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:05,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:05,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:15:05,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-28 03:15:05,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:15:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:05,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:15:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:06,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 03:15:06,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:15:06,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:15:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:06,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:15:06,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:15:06,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:15:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:15:06,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:15:06,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:15:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 03:15:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:15:06,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 03:15:06,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:15:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:15:06,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 03:15:06,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:06,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:15:06,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:15:06,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:15:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:15:06,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:15:06,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:06,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:06,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:06,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:06,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:06,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:06,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:06,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:15:06,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:06,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 03:15:06,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388887077] [2020-10-28 03:15:06,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:15:06,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 03:15:06,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71420289] [2020-10-28 03:15:06,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 03:15:06,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:15:06,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 03:15:06,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 03:15:06,320 INFO L87 Difference]: Start difference. First operand 3809 states and 4824 transitions. Second operand 8 states. [2020-10-28 03:15:09,724 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 392 [2020-10-28 03:15:30,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:15:30,902 INFO L93 Difference]: Finished difference Result 4770 states and 6397 transitions. [2020-10-28 03:15:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 03:15:30,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-28 03:15:30,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:15:30,931 INFO L225 Difference]: With dead ends: 4770 [2020-10-28 03:15:30,932 INFO L226 Difference]: Without dead ends: 4765 [2020-10-28 03:15:30,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-28 03:15:30,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2020-10-28 03:15:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 3808. [2020-10-28 03:15:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-28 03:15:32,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 4822 transitions. [2020-10-28 03:15:32,018 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 4822 transitions. Word has length 64 [2020-10-28 03:15:32,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:15:32,019 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 4822 transitions. [2020-10-28 03:15:32,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 03:15:32,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 4822 transitions. [2020-10-28 03:15:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 03:15:32,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:15:32,022 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:15:32,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 03:15:32,022 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:15:32,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:15:32,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1592505556, now seen corresponding path program 1 times [2020-10-28 03:15:32,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:15:32,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622819757] [2020-10-28 03:15:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:15:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:32,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:32,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:32,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-28 03:15:32,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-28 03:15:32,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:15:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 03:15:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:33,823 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 03:15:33,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:15:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:33,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:15:34,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-28 03:15:34,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:15:34,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:15:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:34,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:15:34,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:15:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:15:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:34,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 03:15:34,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:34,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:15:34,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:15:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:15:34,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:15:34,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:15:34,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 03:15:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:15:34,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 03:15:34,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:15:34,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:34,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:15:34,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:15:34,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:15:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:15:34,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:15:34,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:15:34,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:15:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:34,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:34,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:15:34,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:15:34,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:34,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:15:34,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:15:34,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:15:34,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:15:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 03:15:34,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622819757] [2020-10-28 03:15:34,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:15:34,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:15:34,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521072448] [2020-10-28 03:15:34,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:15:34,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:15:34,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:15:34,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:15:34,444 INFO L87 Difference]: Start difference. First operand 3808 states and 4822 transitions. Second operand 7 states. [2020-10-28 03:15:41,180 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 03:15:58,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:15:58,114 INFO L93 Difference]: Finished difference Result 4769 states and 6395 transitions. [2020-10-28 03:15:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 03:15:58,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-28 03:15:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:15:58,144 INFO L225 Difference]: With dead ends: 4769 [2020-10-28 03:15:58,144 INFO L226 Difference]: Without dead ends: 4764 [2020-10-28 03:15:58,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-28 03:15:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2020-10-28 03:15:59,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3807. [2020-10-28 03:15:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3807 states. [2020-10-28 03:15:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4820 transitions. [2020-10-28 03:15:59,063 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4820 transitions. Word has length 65 [2020-10-28 03:15:59,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:15:59,064 INFO L481 AbstractCegarLoop]: Abstraction has 3807 states and 4820 transitions. [2020-10-28 03:15:59,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:15:59,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4820 transitions. [2020-10-28 03:15:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 03:15:59,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:15:59,066 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:15:59,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 03:15:59,067 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:15:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:15:59,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1532248555, now seen corresponding path program 1 times [2020-10-28 03:15:59,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:15:59,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121914457] [2020-10-28 03:15:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:15:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:15:59,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:15:59,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:15:59,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 03:15:59,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:15:59,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-28 03:15:59,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:15:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:15:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:15:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 03:15:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:00,851 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 03:16:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:16:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:00,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:01,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-28 03:16:01,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:16:01,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:01,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:16:01,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:01,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:01,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:16:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:01,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:16:01,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:01,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:16:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:16:01,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:16:01,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:16:01,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 03:16:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:16:01,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 03:16:01,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:16:01,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:16:01,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 03:16:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:01,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:01,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:01,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:16:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:16:01,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:01,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:01,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:01,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:01,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:01,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:01,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:01,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 03:16:01,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121914457] [2020-10-28 03:16:01,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:16:01,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:16:01,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047786035] [2020-10-28 03:16:01,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:16:01,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:16:01,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:16:01,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:16:01,491 INFO L87 Difference]: Start difference. First operand 3807 states and 4820 transitions. Second operand 7 states. [2020-10-28 03:16:07,142 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 03:16:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:16:28,354 INFO L93 Difference]: Finished difference Result 4768 states and 6393 transitions. [2020-10-28 03:16:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 03:16:28,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2020-10-28 03:16:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:16:28,446 INFO L225 Difference]: With dead ends: 4768 [2020-10-28 03:16:28,446 INFO L226 Difference]: Without dead ends: 4763 [2020-10-28 03:16:28,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-28 03:16:28,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2020-10-28 03:16:29,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 3806. [2020-10-28 03:16:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3806 states. [2020-10-28 03:16:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 4818 transitions. [2020-10-28 03:16:29,300 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 4818 transitions. Word has length 66 [2020-10-28 03:16:29,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:16:29,301 INFO L481 AbstractCegarLoop]: Abstraction has 3806 states and 4818 transitions. [2020-10-28 03:16:29,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:16:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 4818 transitions. [2020-10-28 03:16:29,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 03:16:29,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:16:29,303 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:16:29,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 03:16:29,303 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:16:29,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:16:29,304 INFO L82 PathProgramCache]: Analyzing trace with hash -331041289, now seen corresponding path program 1 times [2020-10-28 03:16:29,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:16:29,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544165415] [2020-10-28 03:16:29,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:16:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:29,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:29,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:29,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 03:16:29,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-28 03:16:29,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:16:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 03:16:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,002 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 03:16:31,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:16:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:31,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-28 03:16:31,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:16:31,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:31,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:16:31,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:31,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:31,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 03:16:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:31,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:16:31,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:16:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 03:16:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:16:31,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:31,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:16:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 03:16:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 03:16:31,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 03:16:31,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:16:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:16:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:16:31,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:16:31,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:31,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:16:31,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:16:31,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:31,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:16:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:16:31,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:16:31,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:16:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:31,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:31,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:16:31,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:16:31,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:16:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:16:31,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:16:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:16:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:16:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:16:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:16:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 03:16:31,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544165415] [2020-10-28 03:16:31,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:16:31,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 03:16:31,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306409052] [2020-10-28 03:16:31,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 03:16:31,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:16:31,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 03:16:31,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:16:31,671 INFO L87 Difference]: Start difference. First operand 3806 states and 4818 transitions. Second operand 7 states. [2020-10-28 03:16:36,621 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 03:16:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:16:58,254 INFO L93 Difference]: Finished difference Result 4767 states and 6391 transitions. [2020-10-28 03:16:58,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 03:16:58,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-10-28 03:16:58,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:16:58,282 INFO L225 Difference]: With dead ends: 4767 [2020-10-28 03:16:58,282 INFO L226 Difference]: Without dead ends: 4740 [2020-10-28 03:16:58,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-28 03:16:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2020-10-28 03:16:59,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 3786. [2020-10-28 03:16:59,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3786 states. [2020-10-28 03:16:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 4794 transitions. [2020-10-28 03:16:59,171 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 4794 transitions. Word has length 67 [2020-10-28 03:16:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:16:59,172 INFO L481 AbstractCegarLoop]: Abstraction has 3786 states and 4794 transitions. [2020-10-28 03:16:59,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 03:16:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 4794 transitions. [2020-10-28 03:16:59,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 03:16:59,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:16:59,180 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:16:59,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 03:16:59,181 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:16:59,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:16:59,181 INFO L82 PathProgramCache]: Analyzing trace with hash 488843218, now seen corresponding path program 1 times [2020-10-28 03:16:59,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:16:59,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309606937] [2020-10-28 03:16:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:16:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:16:59,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:59,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:59,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:16:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking...