/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=NARROWEST --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 -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 19:25:43,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 19:25:43,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 19:25:43,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 19:25:43,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 19:25:43,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 19:25:43,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 19:25:43,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 19:25:43,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 19:25:43,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 19:25:43,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 19:25:43,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 19:25:43,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 19:25:43,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 19:25:43,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 19:25:43,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 19:25:43,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 19:25:43,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 19:25:43,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 19:25:43,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 19:25:43,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 19:25:43,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 19:25:43,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 19:25:43,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 19:25:43,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 19:25:43,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 19:25:43,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 19:25:43,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 19:25:43,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 19:25:43,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 19:25:43,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 19:25:43,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 19:25:43,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 19:25:43,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 19:25:43,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 19:25:43,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 19:25:43,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 19:25:43,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 19:25:43,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 19:25:43,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 19:25:43,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 19:25:43,803 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 [2020-10-13 19:25:43,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 19:25:43,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 19:25:43,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 19:25:43,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 19:25:43,827 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 19:25:43,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 19:25:43,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 19:25:43,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 19:25:43,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 19:25:43,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 19:25:43,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 19:25:43,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 19:25:43,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 19:25:43,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 19:25:43,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 19:25:43,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 19:25:43,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 19:25:43,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 19:25:43,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 19:25:43,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 19:25:43,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 19:25:43,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 19:25:43,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 19:25:43,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 19:25:43,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 19:25:43,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 19:25:43,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 19:25:43,831 INFO L138 SettingsManager]: * To the following directory=dump/ 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 19:25:44,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 19:25:44,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 19:25:44,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 19:25:44,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 19:25:44,188 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 19:25:44,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-10-13 19:25:44,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38369b816/cbed11773e414d719db1ebc96ba6c2a3/FLAGd3471330a [2020-10-13 19:25:45,033 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 19:25:45,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-10-13 19:25:45,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38369b816/cbed11773e414d719db1ebc96ba6c2a3/FLAGd3471330a [2020-10-13 19:25:45,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38369b816/cbed11773e414d719db1ebc96ba6c2a3 [2020-10-13 19:25:45,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 19:25:45,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 19:25:45,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 19:25:45,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 19:25:45,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 19:25:45,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:25:45" (1/1) ... [2020-10-13 19:25:45,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b66d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:45, skipping insertion in model container [2020-10-13 19:25:45,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:25:45" (1/1) ... [2020-10-13 19:25:45,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 19:25:45,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 19:25:47,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:25:47,232 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 19:25:47,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:25:47,704 INFO L208 MainTranslator]: Completed translation [2020-10-13 19:25:47,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47 WrapperNode [2020-10-13 19:25:47,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 19:25:47,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 19:25:47,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 19:25:47,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 19:25:47,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (1/1) ... [2020-10-13 19:25:47,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (1/1) ... [2020-10-13 19:25:47,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (1/1) ... [2020-10-13 19:25:47,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (1/1) ... [2020-10-13 19:25:47,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (1/1) ... [2020-10-13 19:25:47,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (1/1) ... [2020-10-13 19:25:47,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (1/1) ... [2020-10-13 19:25:47,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 19:25:47,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 19:25:47,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 19:25:47,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 19:25:47,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (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 [2020-10-13 19:25:48,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 19:25:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 19:25:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-13 19:25:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-13 19:25:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-10-13 19:25:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-10-13 19:25:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-10-13 19:25:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-10-13 19:25:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-13 19:25:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 19:25:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-10-13 19:25:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-10-13 19:25:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-10-13 19:25:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-10-13 19:25:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-10-13 19:25:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-10-13 19:25:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-10-13 19:25:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 19:25:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 19:25:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 19:25:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 19:25:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 19:25:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 19:25:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 19:25:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-13 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-10-13 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-10-13 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-10-13 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-10-13 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-10-13 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-10-13 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-10-13 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-10-13 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-10-13 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-10-13 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-10-13 19:25:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-10-13 19:25:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-10-13 19:25:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-10-13 19:25:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-10-13 19:25:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-10-13 19:25:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-13 19:25:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 19:25:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-13 19:25:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-13 19:25:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-13 19:25:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-13 19:25:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-13 19:25:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-10-13 19:25:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-10-13 19:25:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-13 19:25:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 19:25:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-13 19:25:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-13 19:25:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-13 19:25:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 19:25:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 19:25:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 19:25:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 19:25:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-13 19:25:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 19:25:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-13 19:25:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-13 19:25:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-13 19:25:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-13 19:25:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-13 19:25:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 19:25:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-10-13 19:25:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-10-13 19:25:48,061 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-10-13 19:25:48,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-10-13 19:25:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-10-13 19:25:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-13 19:25:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-10-13 19:25:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-10-13 19:25:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 19:25:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-13 19:25:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 19:25:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-13 19:25:48,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-13 19:25:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 19:25:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-10-13 19:25:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-10-13 19:25:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-10-13 19:25:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 19:25:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 19:25:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 19:25:48,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-10-13 19:25:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-10-13 19:25:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-13 19:25:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-13 19:25:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-13 19:25:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-13 19:25:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-13 19:25:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-10-13 19:25:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-10-13 19:25:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-10-13 19:25:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 19:25:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-10-13 19:25:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-10-13 19:25:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-10-13 19:25:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 19:25:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-10-13 19:25:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 19:25:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-13 19:25:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 19:25:48,076 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-10-13 19:25:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-10-13 19:25:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-13 19:25:48,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-13 19:25:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 19:25:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 19:25:48,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 19:25:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 19:25:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 19:25:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 19:25:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 19:25:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 19:25:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 19:25:48,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 19:25:48,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 19:25:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 19:25:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 19:25:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 19:25:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 19:25:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-10-13 19:25:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-13 19:25:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-10-13 19:25:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-13 19:25:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-10-13 19:25:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-10-13 19:25:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-10-13 19:25:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-10-13 19:25:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-10-13 19:25:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 19:25:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-10-13 19:25:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-10-13 19:25:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-10-13 19:25:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-10-13 19:25:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 19:25:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 19:25:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-13 19:25:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 19:25:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-13 19:25:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-13 19:25:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-13 19:25:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 19:25:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-13 19:25:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 19:25:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 19:25:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 19:25:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 19:25:48,710 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 19:25:50,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 19:25:50,948 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 19:25:50,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:25:50 BoogieIcfgContainer [2020-10-13 19:25:50,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 19:25:50,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 19:25:50,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 19:25:50,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 19:25:50,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:25:45" (1/3) ... [2020-10-13 19:25:50,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2d9cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:25:50, skipping insertion in model container [2020-10-13 19:25:50,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:47" (2/3) ... [2020-10-13 19:25:50,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2d9cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:25:50, skipping insertion in model container [2020-10-13 19:25:50,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:25:50" (3/3) ... [2020-10-13 19:25:50,965 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-10-13 19:25:50,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 19:25:50,989 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 19:25:51,002 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 19:25:51,029 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 19:25:51,029 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 19:25:51,029 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 19:25:51,029 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 19:25:51,029 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 19:25:51,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 19:25:51,030 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 19:25:51,030 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 19:25:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states. [2020-10-13 19:25:51,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 19:25:51,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:25:51,073 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:25:51,073 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:25:51,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:25:51,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1715961346, now seen corresponding path program 1 times [2020-10-13 19:25:51,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:25:51,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988002316] [2020-10-13 19:25:51,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:25:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:51,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:51,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:51,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:53,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:56,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:56,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 19:25:56,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:25:56,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 19:25:56,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:56,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 19:25:56,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-13 19:25:56,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:25:56,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 19:25:56,932 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 19:25:56,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:25:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:56,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:57,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 19:25:57,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:25:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:25:57,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:25:57,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:25:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:25:57,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:25:57,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:25:57,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:25:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:25:57,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:25:57,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:25:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:57,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:25:57,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 19:25:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:25:57,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:25:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 19:25:57,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 19:25:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:25:57,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 19:25:57,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 19:25:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 19:25:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 19:25:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 19:25:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 19:25:57,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:25:57,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 19:25:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:25:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 19:25:57,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:25:57,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:25:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:57,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:25:57,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 19:25:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:57,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:57,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:57,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:57,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:25:57,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:25:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:57,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 19:25:57,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988002316] [2020-10-13 19:25:57,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:25:57,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 19:25:57,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325591815] [2020-10-13 19:25:57,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 19:25:57,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:25:57,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 19:25:57,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 19:25:57,406 INFO L87 Difference]: Start difference. First operand 545 states. Second operand 9 states. [2020-10-13 19:26:01,761 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 19:26:02,082 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-13 19:26:07,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:26:07,500 INFO L93 Difference]: Finished difference Result 1218 states and 1633 transitions. [2020-10-13 19:26:07,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 19:26:07,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-13 19:26:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:26:07,528 INFO L225 Difference]: With dead ends: 1218 [2020-10-13 19:26:07,528 INFO L226 Difference]: Without dead ends: 705 [2020-10-13 19:26:07,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-13 19:26:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2020-10-13 19:26:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 493. [2020-10-13 19:26:07,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-10-13 19:26:07,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 598 transitions. [2020-10-13 19:26:07,713 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 598 transitions. Word has length 66 [2020-10-13 19:26:07,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:26:07,713 INFO L479 AbstractCegarLoop]: Abstraction has 493 states and 598 transitions. [2020-10-13 19:26:07,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 19:26:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 598 transitions. [2020-10-13 19:26:07,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 19:26:07,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:26:07,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:26:07,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 19:26:07,720 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:26:07,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:26:07,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1313680390, now seen corresponding path program 1 times [2020-10-13 19:26:07,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:26:07,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489598117] [2020-10-13 19:26:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:26:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:07,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:07,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:08,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:10,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:12,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 19:26:12,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:26:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-13 19:26:12,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 19:26:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 19:26:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:26:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:13,114 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 19:26:13,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:13,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 19:26:13,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:13,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:13,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:26:13,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:26:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:13,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:13,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:26:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:26:13,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:26:13,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:13,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:26:13,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:13,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 19:26:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 19:26:13,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 19:26:13,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 19:26:13,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 19:26:13,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 19:26:13,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 19:26:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 19:26:13,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:26:13,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 19:26:13,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 19:26:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 19:26:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 19:26:13,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:26:13,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 19:26:13,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 19:26:13,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:26:13,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:13,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:13,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:13,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:13,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:13,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 19:26:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:13,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:13,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:13,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:13,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:13,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:26:13,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 19:26:13,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489598117] [2020-10-13 19:26:13,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 19:26:13,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 19:26:13,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101087810] [2020-10-13 19:26:13,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 19:26:13,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:26:13,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 19:26:13,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-13 19:26:13,487 INFO L87 Difference]: Start difference. First operand 493 states and 598 transitions. Second operand 10 states. [2020-10-13 19:26:17,295 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 19:26:23,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:26:23,317 INFO L93 Difference]: Finished difference Result 1183 states and 1526 transitions. [2020-10-13 19:26:23,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 19:26:23,318 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2020-10-13 19:26:23,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:26:23,329 INFO L225 Difference]: With dead ends: 1183 [2020-10-13 19:26:23,330 INFO L226 Difference]: Without dead ends: 706 [2020-10-13 19:26:23,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-13 19:26:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-13 19:26:23,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 494. [2020-10-13 19:26:23,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2020-10-13 19:26:23,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 599 transitions. [2020-10-13 19:26:23,460 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 599 transitions. Word has length 68 [2020-10-13 19:26:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:26:23,461 INFO L479 AbstractCegarLoop]: Abstraction has 494 states and 599 transitions. [2020-10-13 19:26:23,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 19:26:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 599 transitions. [2020-10-13 19:26:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 19:26:23,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:26:23,465 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:26:23,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 19:26:23,465 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:26:23,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:26:23,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1981821054, now seen corresponding path program 2 times [2020-10-13 19:26:23,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:26:23,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311466786] [2020-10-13 19:26:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:26:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:23,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:23,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:26,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:28,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:28,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 19:26:28,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:26:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-13 19:26:28,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 19:26:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 19:26:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 19:26:28,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:28,947 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 19:26:28,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:29,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 19:26:29,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:29,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:26:29,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:29,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:26:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:29,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:26:29,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:29,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:26:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:26:29,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:26:29,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:29,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:29,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:26:29,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 19:26:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 19:26:29,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 19:26:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 19:26:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 19:26:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 19:26:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:29,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 19:26:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 19:26:29,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:26:29,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 19:26:29,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 19:26:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:29,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 19:26:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 19:26:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:26:29,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 19:26:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:29,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 19:26:29,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 19:26:29,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:29,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:29,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 19:26:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:29,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:29,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:29,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:29,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:29,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 19:26:29,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311466786] [2020-10-13 19:26:29,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 19:26:29,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 19:26:29,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428605503] [2020-10-13 19:26:29,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 19:26:29,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:26:29,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 19:26:29,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 19:26:29,436 INFO L87 Difference]: Start difference. First operand 494 states and 599 transitions. Second operand 11 states. [2020-10-13 19:26:35,340 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 19:26:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:26:41,124 INFO L93 Difference]: Finished difference Result 1185 states and 1528 transitions. [2020-10-13 19:26:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 19:26:41,125 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-13 19:26:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:26:41,130 INFO L225 Difference]: With dead ends: 1185 [2020-10-13 19:26:41,130 INFO L226 Difference]: Without dead ends: 707 [2020-10-13 19:26:41,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-10-13 19:26:41,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-10-13 19:26:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 495. [2020-10-13 19:26:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-10-13 19:26:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 600 transitions. [2020-10-13 19:26:41,202 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 600 transitions. Word has length 70 [2020-10-13 19:26:41,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:26:41,203 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 600 transitions. [2020-10-13 19:26:41,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 19:26:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 600 transitions. [2020-10-13 19:26:41,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 19:26:41,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:26:41,205 INFO L422 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:26:41,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 19:26:41,206 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:26:41,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:26:41,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1738197126, now seen corresponding path program 3 times [2020-10-13 19:26:41,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:26:41,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306803912] [2020-10-13 19:26:41,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:26:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:41,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:41,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:44,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 19:26:46,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:26:46,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 19:26:46,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 19:26:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 19:26:46,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 19:26:46,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:46,622 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 19:26:46,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:46,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:46,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:46,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 19:26:46,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:46,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:46,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:46,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:46,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:46,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:26:46,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:46,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:46,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:46,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:46,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:26:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:46,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:46,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:46,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:26:46,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:46,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:46,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:26:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:46,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:26:46,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:46,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:26:46,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:46,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:46,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:46,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:46,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:46,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:26:46,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:46,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 19:26:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:46,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 19:26:46,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:26:46,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-13 19:26:46,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:46,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:46,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 19:26:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:46,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:46,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:46,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 19:26:46,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 19:26:46,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 19:26:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 19:26:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 19:26:46,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:47,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 19:26:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:47,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:47,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:47,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 19:26:47,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:47,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 19:26:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:47,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:47,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:47,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 19:26:47,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:47,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:47,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:47,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:47,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:47,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:47,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:47,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:47,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 19:26:47,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:47,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:47,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 19:26:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:47,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:47,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:47,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:47,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:47,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:47,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:47,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 19:26:47,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306803912] [2020-10-13 19:26:47,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 19:26:47,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 19:26:47,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871593817] [2020-10-13 19:26:47,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 19:26:47,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:26:47,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 19:26:47,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 19:26:47,134 INFO L87 Difference]: Start difference. First operand 495 states and 600 transitions. Second operand 12 states. [2020-10-13 19:26:51,556 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 19:26:58,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:26:58,694 INFO L93 Difference]: Finished difference Result 1187 states and 1530 transitions. [2020-10-13 19:26:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 19:26:58,695 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-10-13 19:26:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:26:58,700 INFO L225 Difference]: With dead ends: 1187 [2020-10-13 19:26:58,700 INFO L226 Difference]: Without dead ends: 708 [2020-10-13 19:26:58,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2020-10-13 19:26:58,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-10-13 19:26:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 496. [2020-10-13 19:26:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 19:26:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 601 transitions. [2020-10-13 19:26:58,769 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 601 transitions. Word has length 72 [2020-10-13 19:26:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:26:58,769 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 601 transitions. [2020-10-13 19:26:58,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 19:26:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 601 transitions. [2020-10-13 19:26:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 19:26:58,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:26:58,772 INFO L422 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:26:58,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 19:26:58,772 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:26:58,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:26:58,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1118642434, now seen corresponding path program 4 times [2020-10-13 19:26:58,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:26:58,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618046932] [2020-10-13 19:26:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:26:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:58,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:58,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:59,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 699 [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 19:26:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:59,887 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 19:26:59,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:59,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:59,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:59,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:59,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:59,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 19:26:59,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:59,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:59,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:59,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:59,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:59,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:59,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:26:59,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:59,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:00,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:27:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:00,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:27:00,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:00,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:27:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:00,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:27:00,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:00,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:00,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:00,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:27:00,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:00,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:00,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 19:27:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:00,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 19:27:00,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:00,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 19:27:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:00,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 19:27:00,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:00,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 19:27:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 19:27:00,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:27:00,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 19:27:00,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:00,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 19:27:00,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:27:00,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:00,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:00,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:27:00,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 38 [2020-10-13 19:27:00,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 19:27:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:00,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:00,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:00,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:00,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:00,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:27:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:00,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-13 19:27:00,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618046932] [2020-10-13 19:27:00,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:27:00,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:27:00,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877273827] [2020-10-13 19:27:00,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:27:00,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:27:00,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:27:00,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:27:00,329 INFO L87 Difference]: Start difference. First operand 496 states and 601 transitions. Second operand 8 states. [2020-10-13 19:27:05,575 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-13 19:27:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:27:16,376 INFO L93 Difference]: Finished difference Result 1337 states and 1794 transitions. [2020-10-13 19:27:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 19:27:16,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-10-13 19:27:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:27:16,385 INFO L225 Difference]: With dead ends: 1337 [2020-10-13 19:27:16,386 INFO L226 Difference]: Without dead ends: 1313 [2020-10-13 19:27:16,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2020-10-13 19:27:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2020-10-13 19:27:16,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 908. [2020-10-13 19:27:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-10-13 19:27:16,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1110 transitions. [2020-10-13 19:27:16,505 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1110 transitions. Word has length 74 [2020-10-13 19:27:16,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:27:16,506 INFO L479 AbstractCegarLoop]: Abstraction has 908 states and 1110 transitions. [2020-10-13 19:27:16,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:27:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1110 transitions. [2020-10-13 19:27:16,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 19:27:16,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:27:16,509 INFO L422 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:27:16,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 19:27:16,510 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:27:16,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:27:16,510 INFO L82 PathProgramCache]: Analyzing trace with hash 531947411, now seen corresponding path program 1 times [2020-10-13 19:27:16,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:27:16,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047030255] [2020-10-13 19:27:16,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:27:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 19:27:17,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-10-13 19:27:17,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 19:27:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 19:27:17,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 19:27:17,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:17,622 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 19:27:17,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:17,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 19:27:17,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:27:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:17,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:17,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:17,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:27:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:17,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:17,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:17,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:17,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:27:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:17,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:27:17,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:27:17,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:17,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:27:17,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 19:27:17,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 19:27:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:17,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 19:27:17,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 19:27:17,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 19:27:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:17,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 19:27:17,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 19:27:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 19:27:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 19:27:17,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 19:27:17,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 19:27:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:17,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:17,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 19:27:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 19:27:17,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:17,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:18,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:18,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:18,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:18,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:18,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:18,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:18,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:18,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:18,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:18,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:27:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:18,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:18,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:18,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:18,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:18,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:27:18,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:18,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:18,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:18,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:18,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:18,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:18,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:18,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:18,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:18,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:18,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:18,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:18,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:18,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 19:27:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:18,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:18,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:18,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:18,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:27:18,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 19:27:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:27:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:18,148 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 19:27:18,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047030255] [2020-10-13 19:27:18,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:27:18,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 19:27:18,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135201378] [2020-10-13 19:27:18,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 19:27:18,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:27:18,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 19:27:18,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 19:27:18,150 INFO L87 Difference]: Start difference. First operand 908 states and 1110 transitions. Second operand 12 states. [2020-10-13 19:27:23,101 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-13 19:27:27,066 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-10-13 19:27:27,399 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-13 19:27:27,736 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-13 19:27:32,118 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-13 19:27:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:27:35,960 INFO L93 Difference]: Finished difference Result 2440 states and 3252 transitions. [2020-10-13 19:27:35,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 19:27:35,962 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-10-13 19:27:35,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:27:35,977 INFO L225 Difference]: With dead ends: 2440 [2020-10-13 19:27:35,977 INFO L226 Difference]: Without dead ends: 2416 [2020-10-13 19:27:35,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=227, Invalid=529, Unknown=0, NotChecked=0, Total=756 [2020-10-13 19:27:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2020-10-13 19:27:36,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 1907. [2020-10-13 19:27:36,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2020-10-13 19:27:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2401 transitions. [2020-10-13 19:27:36,265 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2401 transitions. Word has length 90 [2020-10-13 19:27:36,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:27:36,266 INFO L479 AbstractCegarLoop]: Abstraction has 1907 states and 2401 transitions. [2020-10-13 19:27:36,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 19:27:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2401 transitions. [2020-10-13 19:27:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-13 19:27:36,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:27:36,276 INFO L422 BasicCegarLoop]: trace histogram [8, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:27:36,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 19:27:36,276 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:27:36,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:27:36,277 INFO L82 PathProgramCache]: Analyzing trace with hash 354979122, now seen corresponding path program 1 times [2020-10-13 19:27:36,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:27:36,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880640630] [2020-10-13 19:27:36,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:27:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:36,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:36,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:36,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:38,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:41,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:41,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-13 19:27:41,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:27:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-13 19:27:41,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-10-13 19:27:41,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:27:41,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:41,932 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 19:27:41,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:41,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:41,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:41,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:41,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:41,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 19:27:41,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:41,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:42,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:27:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:42,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:42,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:42,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:42,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:27:42,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:42,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:27:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:42,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:42,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:27:42,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:42,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:27:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:42,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:42,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:42,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:27:42,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:42,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:42,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:42,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:42,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:27:42,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:42,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:42,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 19:27:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:42,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:42,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:42,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:42,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:42,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 19:27:42,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:42,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 19:27:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:42,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:42,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:42,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:42,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:42,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 19:27:42,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:42,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:42,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 19:27:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:42,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:42,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-13 19:27:43,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:27:43,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1526 [2020-10-13 19:27:43,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:43,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-13 19:27:43,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:27:43,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 19:27:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 19:27:43,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:27:43,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:43,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:27:43,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 19:27:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:43,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:27:43,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:43,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:27:43,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 19:27:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:43,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:27:43,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:43,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:27:43,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 19:27:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:43,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:27:43,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:43,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 19:27:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:43,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:27:43,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 19:27:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:43,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:27:43,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:27:43,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:43,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:43,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:43,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:43,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:43,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:27:43,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:43,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:43,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:43,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:43,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:44,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 19:27:44,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 19:27:44,006 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 33 more [2020-10-13 19:27:44,012 INFO L168 Benchmark]: Toolchain (without parser) took 118438.80 ms. Allocated memory was 147.8 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 96.3 MB in the beginning and 739.5 MB in the end (delta: -643.2 MB). Peak memory consumption was 378.6 MB. Max. memory is 7.1 GB. [2020-10-13 19:27:44,013 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 19:27:44,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2142.98 ms. Allocated memory was 147.8 MB in the beginning and 243.3 MB in the end (delta: 95.4 MB). Free memory was 95.8 MB in the beginning and 195.2 MB in the end (delta: -99.4 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-13 19:27:44,021 INFO L168 Benchmark]: Boogie Preprocessor took 235.11 ms. Allocated memory is still 243.3 MB. Free memory was 195.2 MB in the beginning and 186.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2020-10-13 19:27:44,023 INFO L168 Benchmark]: RCFGBuilder took 3004.34 ms. Allocated memory was 243.3 MB in the beginning and 316.1 MB in the end (delta: 72.9 MB). Free memory was 186.2 MB in the beginning and 202.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 121.1 MB. Max. memory is 7.1 GB. [2020-10-13 19:27:44,028 INFO L168 Benchmark]: TraceAbstraction took 113051.73 ms. Allocated memory was 316.1 MB in the beginning and 1.2 GB in the end (delta: 853.5 MB). Free memory was 202.6 MB in the beginning and 739.5 MB in the end (delta: -536.9 MB). Peak memory consumption was 316.7 MB. Max. memory is 7.1 GB. [2020-10-13 19:27:44,037 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2142.98 ms. Allocated memory was 147.8 MB in the beginning and 243.3 MB in the end (delta: 95.4 MB). Free memory was 95.8 MB in the beginning and 195.2 MB in the end (delta: -99.4 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 235.11 ms. Allocated memory is still 243.3 MB. Free memory was 195.2 MB in the beginning and 186.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3004.34 ms. Allocated memory was 243.3 MB in the beginning and 316.1 MB in the end (delta: 72.9 MB). Free memory was 186.2 MB in the beginning and 202.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 121.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 113051.73 ms. Allocated memory was 316.1 MB in the beginning and 1.2 GB in the end (delta: 853.5 MB). Free memory was 202.6 MB in the beginning and 739.5 MB in the end (delta: -536.9 MB). Peak memory consumption was 316.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...