/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 21:58:12,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 21:58:12,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 21:58:12,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 21:58:12,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 21:58:12,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 21:58:12,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 21:58:12,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 21:58:12,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 21:58:12,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 21:58:12,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 21:58:12,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 21:58:12,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 21:58:12,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 21:58:12,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 21:58:12,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 21:58:12,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 21:58:12,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 21:58:12,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 21:58:12,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 21:58:12,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 21:58:12,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 21:58:12,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 21:58:12,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 21:58:12,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 21:58:12,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 21:58:12,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 21:58:12,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 21:58:12,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 21:58:12,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 21:58:12,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 21:58:12,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 21:58:12,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 21:58:12,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 21:58:12,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 21:58:12,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 21:58:12,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 21:58:12,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 21:58:12,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 21:58:12,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 21:58:12,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 21:58:12,999 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 21:58:13,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 21:58:13,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 21:58:13,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 21:58:13,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 21:58:13,049 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 21:58:13,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 21:58:13,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 21:58:13,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 21:58:13,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 21:58:13,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 21:58:13,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 21:58:13,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 21:58:13,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 21:58:13,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 21:58:13,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 21:58:13,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 21:58:13,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 21:58:13,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 21:58:13,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 21:58:13,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 21:58:13,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 21:58:13,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 21:58:13,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 21:58:13,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 21:58:13,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 21:58:13,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 21:58:13,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 21:58:13,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 21:58:13,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 21:58:13,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 21:58:13,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 21:58:13,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 21:58:13,511 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 21:58:13,512 INFO L432 ainManager$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 21:58:13,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72190e87e/bd3d7e7e02c94b098a70a5259c25d7ab/FLAG5bc7d1981 [2020-10-28 21:58:14,586 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 21:58:14,587 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 21:58:14,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72190e87e/bd3d7e7e02c94b098a70a5259c25d7ab/FLAG5bc7d1981 [2020-10-28 21:58:15,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72190e87e/bd3d7e7e02c94b098a70a5259c25d7ab [2020-10-28 21:58:15,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 21:58:15,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 21:58:15,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 21:58:15,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 21:58:15,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 21:58:15,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:58:15" (1/1) ... [2020-10-28 21:58:15,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc7dc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:15, skipping insertion in model container [2020-10-28 21:58:15,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:58:15" (1/1) ... [2020-10-28 21:58:15,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 21:58:15,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 21:58:16,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:58:16,721 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 21:58:17,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:58:17,281 INFO L208 MainTranslator]: Completed translation [2020-10-28 21:58:17,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17 WrapperNode [2020-10-28 21:58:17,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 21:58:17,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 21:58:17,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 21:58:17,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 21:58:17,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (1/1) ... [2020-10-28 21:58:17,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (1/1) ... [2020-10-28 21:58:17,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (1/1) ... [2020-10-28 21:58:17,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (1/1) ... [2020-10-28 21:58:17,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (1/1) ... [2020-10-28 21:58:17,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (1/1) ... [2020-10-28 21:58:17,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (1/1) ... [2020-10-28 21:58:17,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 21:58:17,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 21:58:17,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 21:58:17,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 21:58:17,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (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 21:58:17,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 21:58:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 21:58:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 21:58:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 21:58:17,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-28 21:58:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-28 21:58:17,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-28 21:58:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-10-28 21:58:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-10-28 21:58:17,693 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-28 21:58:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-28 21:58:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-28 21:58:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-28 21:58:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 21:58:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-28 21:58:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-28 21:58:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2020-10-28 21:58:17,698 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 21:58:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 21:58:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-28 21:58:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-28 21:58:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 21:58:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 21:58:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 21:58:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 21:58:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 21:58:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 21:58:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 21:58:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 21:58:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 21:58:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 21:58:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 21:58:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 21:58:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-28 21:58:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-28 21:58:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-28 21:58:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-28 21:58:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-28 21:58:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-28 21:58:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-28 21:58:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-28 21:58:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2020-10-28 21:58:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2020-10-28 21:58:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd_msg [2020-10-28 21:58:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_wait_cmd_msg [2020-10-28 21:58:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2020-10-28 21:58:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2020-10-28 21:58:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_close [2020-10-28 21:58:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_version [2020-10-28 21:58:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_set_mode [2020-10-28 21:58:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_err_msg [2020-10-28 21:58:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_can_msg [2020-10-28 21:58:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2020-10-28 21:58:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_write_bulk_callback [2020-10-28 21:58:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start_xmit [2020-10-28 21:58:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_get_berr_counter [2020-10-28 21:58:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start [2020-10-28 21:58:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_open [2020-10-28 21:58:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2020-10-28 21:58:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_close [2020-10-28 21:58:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_probe [2020-10-28 21:58:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2020-10-28 21:58:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_init [2020-10-28 21:58:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_exit [2020-10-28 21:58:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-28 21:58:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-28 21:58:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 21:58:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-28 21:58:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2020-10-28 21:58:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-28 21:58:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2020-10-28 21:58:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-28 21:58:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-28 21:58:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-28 21:58:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-28 21:58:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-28 21:58:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-28 21:58:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-28 21:58:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-28 21:58:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2020-10-28 21:58:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_16 [2020-10-28 21:58:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_18 [2020-10-28 21:58:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_19 [2020-10-28 21:58:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-28 21:58:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-28 21:58:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-28 21:58:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-28 21:58:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-28 21:58:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-28 21:58:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-28 21:58:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-28 21:58:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-28 21:58:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-28 21:58:17,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-28 21:58:17,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-28 21:58:17,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-28 21:58:17,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-28 21:58:17,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-28 21:58:17,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2020-10-28 21:58:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2020-10-28 21:58:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2020-10-28 21:58:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2020-10-28 21:58:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2020-10-28 21:58:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2020-10-28 21:58:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-28 21:58:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-28 21:58:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-10-28 21:58:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-28 21:58:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-28 21:58:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2020-10-28 21:58:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 21:58:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2020-10-28 21:58:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-28 21:58:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2020-10-28 21:58:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-28 21:58:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 21:58:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 21:58:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 21:58:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 21:58:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 21:58:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 21:58:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 21:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 21:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 21:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 21:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 21:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 21:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 21:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 21:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-28 21:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-28 21:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-28 21:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-28 21:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-10-28 21:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 21:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-28 21:58:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-28 21:58:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_16 [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-28 21:58:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_18 [2020-10-28 21:58:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-28 21:58:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_19 [2020-10-28 21:58:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-28 21:58:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 21:58:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2020-10-28 21:58:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2020-10-28 21:58:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-28 21:58:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2020-10-28 21:58:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-28 21:58:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 21:58:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 21:58:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-28 21:58:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-28 21:58:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2020-10-28 21:58:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2020-10-28 21:58:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2020-10-28 21:58:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2020-10-28 21:58:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2020-10-28 21:58:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2020-10-28 21:58:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd_msg [2020-10-28 21:58:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_wait_cmd_msg [2020-10-28 21:58:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2020-10-28 21:58:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_close [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_version [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_set_mode [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_err_msg [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_can_msg [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2020-10-28 21:58:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_write_bulk_callback [2020-10-28 21:58:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start_xmit [2020-10-28 21:58:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_get_berr_counter [2020-10-28 21:58:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start [2020-10-28 21:58:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_open [2020-10-28 21:58:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2020-10-28 21:58:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_close [2020-10-28 21:58:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_probe [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_init [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_exit [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 21:58:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-28 21:58:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 21:58:17,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 21:58:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 21:58:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 21:58:19,592 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 21:58:24,379 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-28 21:58:25,050 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 21:58:25,050 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 21:58:25,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:58:25 BoogieIcfgContainer [2020-10-28 21:58:25,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 21:58:25,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 21:58:25,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 21:58:25,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 21:58:25,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:58:15" (1/3) ... [2020-10-28 21:58:25,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4881d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:58:25, skipping insertion in model container [2020-10-28 21:58:25,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:58:17" (2/3) ... [2020-10-28 21:58:25,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4881d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:58:25, skipping insertion in model container [2020-10-28 21:58:25,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:58:25" (3/3) ... [2020-10-28 21:58:25,062 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 21:58:25,074 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 21:58:25,080 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 21:58:25,094 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 21:58:25,128 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 21:58:25,128 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 21:58:25,128 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 21:58:25,128 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 21:58:25,128 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 21:58:25,128 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 21:58:25,128 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 21:58:25,128 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 21:58:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states. [2020-10-28 21:58:25,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 21:58:25,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:58:25,181 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 21:58:25,182 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:58:25,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:58:25,188 INFO L82 PathProgramCache]: Analyzing trace with hash 178053185, now seen corresponding path program 1 times [2020-10-28 21:58:25,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:58:25,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381286035] [2020-10-28 21:58:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:58:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:26,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:28,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:28,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 21:58:28,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:58:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3204 [2020-10-28 21:58:28,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:28,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:58:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 21:58:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 21:58:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 21:58:30,177 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 21:58:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:58:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:30,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:30,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:30,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:58:30,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:58:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 21:58:30,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:30,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:58:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:58:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:58:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:58:30,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:58:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:30,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:30,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:30,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:58:30,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:58:30,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 21:58:30,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:30,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:30,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:58:30,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:58:30,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:58:30,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:58:30,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 21:58:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:30,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:30,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:30,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:58:30,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:58:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 21:58:30,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:30,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:58:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:58:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:58:30,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:58:30,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:58:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:30,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:30,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:30,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 21:58:30,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:58:30,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 21:58:30,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:30,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:30,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:58:30,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:58:30,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:58:30,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:58:30,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 21:58:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:30,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:30,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 21:58:30,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:58:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 21:58:30,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:30,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:58:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 21:58:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:58:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:58:30,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:58:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:30,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:30,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:30,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 21:58:30,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:58:30,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 21:58:30,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:30,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:58:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:58:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:58:30,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:58:30,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:58:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:58:30,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:58:30,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:58:30,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:58:30,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:58:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:58:30,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:58:30,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:58:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:58:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:58:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:58:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:58:30,561 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 21:58:30,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381286035] [2020-10-28 21:58:30,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:58:30,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:58:30,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359645258] [2020-10-28 21:58:30,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:58:30,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:58:30,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:58:30,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:58:30,586 INFO L87 Difference]: Start difference. First operand 1000 states. Second operand 6 states. [2020-10-28 21:58:36,706 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 21:59:11,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:59:11,864 INFO L93 Difference]: Finished difference Result 3380 states and 4550 transitions. [2020-10-28 21:59:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 21:59:11,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2020-10-28 21:59:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:59:11,908 INFO L225 Difference]: With dead ends: 3380 [2020-10-28 21:59:11,909 INFO L226 Difference]: Without dead ends: 2389 [2020-10-28 21:59:11,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 21:59:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2020-10-28 21:59:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1809. [2020-10-28 21:59:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1809 states. [2020-10-28 21:59:12,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2252 transitions. [2020-10-28 21:59:12,642 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2252 transitions. Word has length 47 [2020-10-28 21:59:12,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:59:12,644 INFO L481 AbstractCegarLoop]: Abstraction has 1809 states and 2252 transitions. [2020-10-28 21:59:12,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 21:59:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2252 transitions. [2020-10-28 21:59:12,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 21:59:12,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:59:12,659 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 21:59:12,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 21:59:12,660 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:59:12,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:59:12,661 INFO L82 PathProgramCache]: Analyzing trace with hash 236160945, now seen corresponding path program 1 times [2020-10-28 21:59:12,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:59:12,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324215452] [2020-10-28 21:59:12,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:59:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:12,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:14,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:14,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 21:59:14,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:14,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1278 [2020-10-28 21:59:14,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:14,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 21:59:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 21:59:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 21:59:14,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:15,224 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 21:59:15,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:59:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:59:15,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-28 21:59:15,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:59:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:59:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:59:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:59:15,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 21:59:15,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 21:59:15,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:15,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 21:59:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:59:15,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 21:59:15,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 21:59:15,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:15,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:59:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 21:59:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 21:59:15,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 21:59:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:15,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 21:59:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 21:59:15,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 21:59:15,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 21:59:15,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:15,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:59:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 21:59:15,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 21:59:15,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:15,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:59:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:59:15,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 21:59:15,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:15,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:15,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:59:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:15,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:15,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:15,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 21:59:15,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:15,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 21:59:15,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:15,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:15,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:59:16,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:59:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:16,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:16,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:16,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:59:16,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:59:16,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:16,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:16,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:16,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:16,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:59:16,053 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 21:59:16,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324215452] [2020-10-28 21:59:16,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:59:16,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 21:59:16,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51094830] [2020-10-28 21:59:16,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 21:59:16,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:59:16,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 21:59:16,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 21:59:16,057 INFO L87 Difference]: Start difference. First operand 1809 states and 2252 transitions. Second operand 7 states. [2020-10-28 21:59:21,625 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-28 21:59:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:59:51,625 INFO L93 Difference]: Finished difference Result 6573 states and 8690 transitions. [2020-10-28 21:59:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 21:59:51,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-28 21:59:51,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:59:51,658 INFO L225 Difference]: With dead ends: 6573 [2020-10-28 21:59:51,658 INFO L226 Difference]: Without dead ends: 4778 [2020-10-28 21:59:51,668 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 21:59:51,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4778 states. [2020-10-28 21:59:52,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4778 to 3809. [2020-10-28 21:59:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3809 states. [2020-10-28 21:59:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3809 states to 3809 states and 4824 transitions. [2020-10-28 21:59:52,587 INFO L78 Accepts]: Start accepts. Automaton has 3809 states and 4824 transitions. Word has length 63 [2020-10-28 21:59:52,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:59:52,587 INFO L481 AbstractCegarLoop]: Abstraction has 3809 states and 4824 transitions. [2020-10-28 21:59:52,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 21:59:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3809 states and 4824 transitions. [2020-10-28 21:59:52,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 21:59:52,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:59:52,591 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 21:59:52,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 21:59:52,591 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:59:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:59:52,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1869083096, now seen corresponding path program 1 times [2020-10-28 21:59:52,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:59:52,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169910156] [2020-10-28 21:59:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:59:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:52,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:53,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:53,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 21:59:53,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-28 21:59:53,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:53,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 21:59:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 21:59:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:54,412 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 21:59:54,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:59:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:54,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:54,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:54,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:59:54,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-28 21:59:54,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:54,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:59:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:59:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:54,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:54,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:54,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:59:54,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:54,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 21:59:54,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:54,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 21:59:54,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:54,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 21:59:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:55,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:55,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:55,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:59:55,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 21:59:55,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:55,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 21:59:55,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:55,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:59:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:55,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:55,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:55,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 21:59:55,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:55,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 21:59:55,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:55,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:55,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:55,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:55,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 21:59:55,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:55,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 21:59:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:55,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:55,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:55,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 21:59:55,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:55,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-28 21:59:55,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:55,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:59:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 21:59:55,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:55,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:59:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:55,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:55,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:55,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 21:59:55,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:55,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 21:59:55,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:55,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:55,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:59:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:55,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:55,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:55,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:59:55,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 21:59:55,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:55,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:55,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:59:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:55,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:55,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:55,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 21:59:55,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:55,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 21:59:55,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:55,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:55,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:55,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:55,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:55,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:55,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:59:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:59:55,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:59:55,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:59:55,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:59:55,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:59:55,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 21:59:55,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:59:55,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:59:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:59:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:59:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:59:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:59:55,401 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 21:59:55,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169910156] [2020-10-28 21:59:55,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:59:55,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 21:59:55,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851119831] [2020-10-28 21:59:55,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 21:59:55,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:59:55,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 21:59:55,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 21:59:55,406 INFO L87 Difference]: Start difference. First operand 3809 states and 4824 transitions. Second operand 8 states. [2020-10-28 21:59:59,872 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 391 [2020-10-28 22:00:19,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 22:00:19,673 INFO L93 Difference]: Finished difference Result 4770 states and 6397 transitions. [2020-10-28 22:00:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 22:00:19,674 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-28 22:00:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 22:00:19,704 INFO L225 Difference]: With dead ends: 4770 [2020-10-28 22:00:19,704 INFO L226 Difference]: Without dead ends: 4765 [2020-10-28 22:00:19,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-28 22:00:19,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2020-10-28 22:00:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 3808. [2020-10-28 22:00:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-28 22:00:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 4822 transitions. [2020-10-28 22:00:20,769 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 4822 transitions. Word has length 64 [2020-10-28 22:00:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 22:00:20,771 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 4822 transitions. [2020-10-28 22:00:20,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 22:00:20,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 4822 transitions. [2020-10-28 22:00:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 22:00:20,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 22:00:20,775 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 22:00:20,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 22:00:20,776 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 22:00:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 22:00:20,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1592505556, now seen corresponding path program 1 times [2020-10-28 22:00:20,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 22:00:20,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203069925] [2020-10-28 22:00:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 22:00:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:20,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:21,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:21,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-28 22:00:21,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:21,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-28 22:00:21,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:21,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:21,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 22:00:21,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 22:00:21,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:22,611 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 22:00:22,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 22:00:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:22,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:22,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:00:22,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-28 22:00:22,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:22,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 22:00:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:00:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:22,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:22,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:22,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:00:22,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:22,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 22:00:22,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:22,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:22,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:22,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:22,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 22:00:22,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:22,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 22:00:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:23,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:23,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:23,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:00:23,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 22:00:23,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:23,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 22:00:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:23,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 22:00:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:23,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:23,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:23,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 22:00:23,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 22:00:23,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:23,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:23,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:23,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:23,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 22:00:23,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 22:00:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:23,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:23,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:23,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 22:00:23,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:23,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 22:00:23,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:23,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 22:00:23,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:23,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:00:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:23,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:23,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:23,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 22:00:23,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 22:00:23,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:23,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:23,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:00:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:23,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:23,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:23,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:00:23,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 22:00:23,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:23,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:23,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:23,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:00:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:23,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:23,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:23,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 22:00:23,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:23,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 22:00:23,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:23,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:23,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:23,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:00:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:23,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:23,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:23,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:00:23,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:23,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 22:00:23,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:23,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:23,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:23,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:23,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:23,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 22:00:23,253 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 22:00:23,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203069925] [2020-10-28 22:00:23,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 22:00:23,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 22:00:23,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128236619] [2020-10-28 22:00:23,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 22:00:23,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 22:00:23,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 22:00:23,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 22:00:23,256 INFO L87 Difference]: Start difference. First operand 3808 states and 4822 transitions. Second operand 7 states. [2020-10-28 22:00:29,616 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 22:00:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 22:00:47,010 INFO L93 Difference]: Finished difference Result 4769 states and 6395 transitions. [2020-10-28 22:00:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 22:00:47,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-28 22:00:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 22:00:47,037 INFO L225 Difference]: With dead ends: 4769 [2020-10-28 22:00:47,038 INFO L226 Difference]: Without dead ends: 4764 [2020-10-28 22:00:47,041 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 22:00:47,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2020-10-28 22:00:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3807. [2020-10-28 22:00:47,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3807 states. [2020-10-28 22:00:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4820 transitions. [2020-10-28 22:00:47,849 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4820 transitions. Word has length 65 [2020-10-28 22:00:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 22:00:47,849 INFO L481 AbstractCegarLoop]: Abstraction has 3807 states and 4820 transitions. [2020-10-28 22:00:47,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 22:00:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4820 transitions. [2020-10-28 22:00:47,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 22:00:47,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 22:00:47,852 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 22:00:47,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 22:00:47,852 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 22:00:47,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 22:00:47,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1532248555, now seen corresponding path program 1 times [2020-10-28 22:00:47,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 22:00:47,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602776801] [2020-10-28 22:00:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 22:00:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:47,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:48,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:48,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 22:00:48,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:48,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-28 22:00:48,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:48,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 22:00:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 22:00:48,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:49,546 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 22:00:49,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 22:00:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:49,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:49,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:49,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:00:49,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:49,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-28 22:00:49,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:49,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 22:00:49,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:49,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:00:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:49,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:49,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:49,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:00:49,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:49,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 22:00:49,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:49,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:49,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:49,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:49,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 22:00:49,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:49,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 22:00:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:49,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:49,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:49,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:00:49,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:49,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 22:00:49,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:49,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:49,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 22:00:49,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:49,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 22:00:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:49,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:49,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:49,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 22:00:49,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 22:00:49,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:49,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 22:00:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:49,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 22:00:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:49,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:50,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:50,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 22:00:50,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 22:00:50,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:50,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:00:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 22:00:50,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:50,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:00:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:50,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:50,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:50,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 22:00:50,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:50,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 22:00:50,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:50,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:50,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:50,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:50,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:00:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:50,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:50,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:50,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:00:50,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 22:00:50,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:50,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:50,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:00:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:50,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:50,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:50,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 22:00:50,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 22:00:50,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:50,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:50,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:00:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:00:50,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:00:50,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:00:50,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:00:50,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:00:50,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 22:00:50,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:00:50,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:00:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:00:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:00:50,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:00:50,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:00:50,152 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 22:00:50,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602776801] [2020-10-28 22:00:50,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 22:00:50,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 22:00:50,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902133096] [2020-10-28 22:00:50,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 22:00:50,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 22:00:50,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 22:00:50,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 22:00:50,154 INFO L87 Difference]: Start difference. First operand 3807 states and 4820 transitions. Second operand 7 states. [2020-10-28 22:00:54,386 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 22:01:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 22:01:13,899 INFO L93 Difference]: Finished difference Result 4768 states and 6393 transitions. [2020-10-28 22:01:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 22:01:13,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2020-10-28 22:01:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 22:01:13,927 INFO L225 Difference]: With dead ends: 4768 [2020-10-28 22:01:13,927 INFO L226 Difference]: Without dead ends: 4763 [2020-10-28 22:01:13,929 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 22:01:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2020-10-28 22:01:15,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 3806. [2020-10-28 22:01:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3806 states. [2020-10-28 22:01:15,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 4818 transitions. [2020-10-28 22:01:15,015 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 4818 transitions. Word has length 66 [2020-10-28 22:01:15,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 22:01:15,015 INFO L481 AbstractCegarLoop]: Abstraction has 3806 states and 4818 transitions. [2020-10-28 22:01:15,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 22:01:15,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 4818 transitions. [2020-10-28 22:01:15,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 22:01:15,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 22:01:15,018 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 22:01:15,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 22:01:15,018 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 22:01:15,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 22:01:15,019 INFO L82 PathProgramCache]: Analyzing trace with hash -331041289, now seen corresponding path program 1 times [2020-10-28 22:01:15,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 22:01:15,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671701905] [2020-10-28 22:01:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 22:01:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:15,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:15,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:15,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 22:01:15,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-28 22:01:15,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:15,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:01:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 22:01:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 22:01:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:16,623 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 22:01:16,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 22:01:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:16,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:16,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:16,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:16,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:16,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-28 22:01:16,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:16,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:16,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:01:16,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 22:01:16,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:16,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:01:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:16,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:01:17,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 22:01:17,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:01:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 22:01:17,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 22:01:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:17,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:01:17,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 22:01:17,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:01:17,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 22:01:17,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 22:01:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:17,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 22:01:17,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 22:01:17,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:01:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 22:01:17,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 22:01:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:17,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 22:01:17,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 22:01:17,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:01:17,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 22:01:17,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:17,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 22:01:17,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 22:01:17,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:17,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:17,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 22:01:17,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:17,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:01:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:17,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 22:01:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 22:01:17,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:17,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:17,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:01:17,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 22:01:17,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:17,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:17,255 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 22:01:17,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671701905] [2020-10-28 22:01:17,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 22:01:17,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 22:01:17,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152148683] [2020-10-28 22:01:17,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 22:01:17,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 22:01:17,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 22:01:17,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 22:01:17,257 INFO L87 Difference]: Start difference. First operand 3806 states and 4818 transitions. Second operand 7 states. [2020-10-28 22:01:21,781 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-28 22:01:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 22:01:41,802 INFO L93 Difference]: Finished difference Result 4767 states and 6391 transitions. [2020-10-28 22:01:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 22:01:41,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-10-28 22:01:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 22:01:41,828 INFO L225 Difference]: With dead ends: 4767 [2020-10-28 22:01:41,828 INFO L226 Difference]: Without dead ends: 4740 [2020-10-28 22:01:41,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-28 22:01:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2020-10-28 22:01:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 3786. [2020-10-28 22:01:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3786 states. [2020-10-28 22:01:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 4794 transitions. [2020-10-28 22:01:42,597 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 4794 transitions. Word has length 67 [2020-10-28 22:01:42,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 22:01:42,597 INFO L481 AbstractCegarLoop]: Abstraction has 3786 states and 4794 transitions. [2020-10-28 22:01:42,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 22:01:42,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 4794 transitions. [2020-10-28 22:01:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 22:01:42,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 22:01:42,605 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 22:01:42,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 22:01:42,605 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 22:01:42,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 22:01:42,606 INFO L82 PathProgramCache]: Analyzing trace with hash 488843218, now seen corresponding path program 1 times [2020-10-28 22:01:42,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 22:01:42,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319145782] [2020-10-28 22:01:42,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 22:01:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:42,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:42,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:42,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:42,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:43,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:47,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:47,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-28 22:01:47,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 22:01:47,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5162 [2020-10-28 22:01:47,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:47,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 22:01:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 22:01:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 22:01:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 22:01:49,001 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-28 22:01:49,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 22:01:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:49,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:49,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:01:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:49,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:49,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:49,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:01:49,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 22:01:49,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:49,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:49,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:49,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 22:01:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:49,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:49,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:49,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 22:01:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:49,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:49,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 22:01:49,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 22:01:49,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:49,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:49,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 22:01:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:49,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:49,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:49,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:49,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 22:01:52,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 22:01:52,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2756 [2020-10-28 22:01:52,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-28 22:01:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:52,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 22:01:52,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:01:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 22:01:52,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 22:01:52,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 22:01:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:52,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 22:01:52,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 22:01:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 22:01:52,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 22:01:52,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 22:01:52,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 22:01:52,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 22:01:52,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 22:01:52,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:01:52,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 22:01:52,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 22:01:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:52,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 22:01:52,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 22:01:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:52,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 22:01:52,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-28 22:01:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 22:01:52,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 22:01:52,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-28 22:01:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 22:01:52,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 22:01:52,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 22:01:52,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 22:01:52,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 22:01:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 22:01:52,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 22:01:52,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 22:01:52,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 22:01:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 22:01:52,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 22:01:52,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 22:01:52,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 22:01:52,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 22:01:52,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 22:01:52,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 22:01:52,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 22:01:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 22:01:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 22:01:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 22:01:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 22:01:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-28 22:01:52,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319145782] [2020-10-28 22:01:52,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 22:01:52,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 22:01:52,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754238602] [2020-10-28 22:01:52,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 22:01:52,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 22:01:52,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 22:01:52,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 22:01:52,657 INFO L87 Difference]: Start difference. First operand 3786 states and 4794 transitions. Second operand 11 states. [2020-10-28 22:01:59,798 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 390