/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:22:07,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:22:07,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:22:07,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:22:07,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:22:07,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:22:07,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:22:07,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:22:07,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:22:07,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:22:07,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:22:07,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:22:07,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:22:07,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:22:07,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:22:07,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:22:07,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:22:07,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:22:07,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:22:07,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:22:07,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:22:07,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:22:07,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:22:07,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:22:07,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:22:07,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:22:07,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:22:07,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:22:07,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:22:07,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:22:07,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:22:07,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:22:07,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:22:07,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:22:07,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:22:07,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:22:07,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:22:07,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:22:07,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:22:07,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:22:07,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:22:07,945 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 [2020-09-25 07:22:07,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:22:07,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:22:07,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:22:07,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:22:07,986 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:22:07,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:22:07,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:22:07,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:22:07,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:22:07,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:22:07,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:22:07,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:22:07,989 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:22:07,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:22:07,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:22:07,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:22:07,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:22:07,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:22:07,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:22:07,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:22:07,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:22:07,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:22:07,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:22:07,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:22:07,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:22:07,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:22:07,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 07:22:07,993 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 07:22:08,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:22:08,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:22:08,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:22:08,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:22:08,463 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:22:08,464 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 07:22:08,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88f87aa11/c97da873d5924da0bea1f56e087f924a/FLAG50db59310 [2020-09-25 07:22:09,393 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:22:09,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 07:22:09,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88f87aa11/c97da873d5924da0bea1f56e087f924a/FLAG50db59310 [2020-09-25 07:22:09,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88f87aa11/c97da873d5924da0bea1f56e087f924a [2020-09-25 07:22:09,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:22:09,947 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:22:09,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:22:09,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:22:09,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:22:09,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de0ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09, skipping insertion in model container [2020-09-25 07:22:09,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:22:10,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:22:11,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:22:11,441 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:22:11,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:22:11,749 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:22:11,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11 WrapperNode [2020-09-25 07:22:11,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:22:11,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:22:11,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:22:11,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:22:11,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (1/1) ... [2020-09-25 07:22:11,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (1/1) ... [2020-09-25 07:22:11,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (1/1) ... [2020-09-25 07:22:11,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (1/1) ... [2020-09-25 07:22:11,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (1/1) ... [2020-09-25 07:22:11,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (1/1) ... [2020-09-25 07:22:12,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (1/1) ... [2020-09-25 07:22:12,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:22:12,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:22:12,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:22:12,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:22:12,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (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 [2020-09-25 07:22:12,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:22:12,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:22:12,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 07:22:12,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 07:22:12,165 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 07:22:12,165 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 07:22:12,166 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 07:22:12,166 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 07:22:12,167 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 07:22:12,168 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 07:22:12,168 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 07:22:12,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 07:22:12,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 07:22:12,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 07:22:12,169 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 07:22:12,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 07:22:12,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 07:22:12,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 07:22:12,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 07:22:12,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 07:22:12,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 07:22:12,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 07:22:12,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 07:22:12,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 07:22:12,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 07:22:12,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 07:22:12,176 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 07:22:12,176 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 07:22:12,176 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 07:22:12,176 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 07:22:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 07:22:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 07:22:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 07:22:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 07:22:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 07:22:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 07:22:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 07:22:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 07:22:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 07:22:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 07:22:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 07:22:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 07:22:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:22:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 07:22:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 07:22:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 07:22:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 07:22:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 07:22:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 07:22:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 07:22:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 07:22:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 07:22:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 07:22:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 07:22:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 07:22:12,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 07:22:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 07:22:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 07:22:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 07:22:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 07:22:12,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 07:22:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 07:22:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 07:22:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 07:22:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 07:22:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 07:22:12,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 07:22:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 07:22:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 07:22:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 07:22:12,185 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 07:22:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 07:22:12,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 07:22:12,187 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 07:22:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 07:22:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 07:22:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 07:22:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 07:22:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 07:22:12,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 07:22:12,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 07:22:12,189 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 07:22:12,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 07:22:12,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 07:22:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 07:22:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 07:22:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 07:22:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 07:22:12,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 07:22:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:22:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 07:22:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 07:22:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 07:22:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 07:22:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:22:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 07:22:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 07:22:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 07:22:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 07:22:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 07:22:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 07:22:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 07:22:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 07:22:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 07:22:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:22:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 07:22:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 07:22:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 07:22:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:22:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 07:22:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 07:22:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 07:22:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 07:22:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 07:22:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:22:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 07:22:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 07:22:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 07:22:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 07:22:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 07:22:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 07:22:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:22:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:22:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:22:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 07:22:12,202 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:22:12,203 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 07:22:12,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 07:22:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:22:12,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 07:22:12,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 07:22:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 07:22:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 07:22:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 07:22:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 07:22:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 07:22:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 07:22:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 07:22:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 07:22:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 07:22:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 07:22:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 07:22:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 07:22:12,214 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 07:22:12,214 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 07:22:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 07:22:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 07:22:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 07:22:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 07:22:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 07:22:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 07:22:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 07:22:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 07:22:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 07:22:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 07:22:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 07:22:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 07:22:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:22:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 07:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 07:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 07:22:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 07:22:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 07:22:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 07:22:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 07:22:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 07:22:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 07:22:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:22:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 07:22:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 07:22:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 07:22:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 07:22:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 07:22:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 07:22:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 07:22:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:22:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 07:22:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 07:22:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 07:22:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 07:22:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 07:22:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 07:22:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 07:22:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 07:22:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 07:22:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 07:22:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 07:22:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 07:22:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 07:22:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:22:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 07:22:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:22:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:22:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:22:13,298 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 07:22:14,649 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:22:14,649 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 07:22:14,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:22:14 BoogieIcfgContainer [2020-09-25 07:22:14,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:22:14,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:22:14,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:22:14,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:22:14,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:22:09" (1/3) ... [2020-09-25 07:22:14,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a7de65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:22:14, skipping insertion in model container [2020-09-25 07:22:14,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:11" (2/3) ... [2020-09-25 07:22:14,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a7de65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:22:14, skipping insertion in model container [2020-09-25 07:22:14,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:22:14" (3/3) ... [2020-09-25 07:22:14,687 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 07:22:14,707 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:22:14,720 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:22:14,745 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:22:14,788 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:22:14,788 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:22:14,789 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:22:14,789 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:22:14,789 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:22:14,789 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:22:14,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:22:14,789 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:22:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 07:22:14,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 07:22:14,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:22:14,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:22:14,848 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:22:14,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:22:14,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 07:22:14,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:22:14,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603218789] [2020-09-25 07:22:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:22:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:15,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:15,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:16,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:16,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 07:22:16,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1361 [2020-09-25 07:22:16,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:16,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:16,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 07:22:16,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:22:16,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:22:16,964 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 07:22:16,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:16,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:22:17,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 07:22:17,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:17,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 07:22:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:22:17,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 07:22:17,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:22:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:17,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:22:17,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:22:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:17,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:22:17,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 07:22:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:22:17,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:22:17,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:22:17,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:22:17,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:22:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:22:17,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:22:17,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:22:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:17,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:22:17,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 07:22:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:17,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:17,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:22:17,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:22:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:22:17,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603218789] [2020-09-25 07:22:17,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:22:17,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:22:17,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682480782] [2020-09-25 07:22:17,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:22:17,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:22:17,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:22:17,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:22:17,631 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 7 states. [2020-09-25 07:22:17,807 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 07:22:18,172 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 07:22:18,364 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 07:22:24,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:22:24,947 INFO L93 Difference]: Finished difference Result 2373 states and 2824 transitions. [2020-09-25 07:22:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 07:22:24,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-09-25 07:22:24,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:22:24,994 INFO L225 Difference]: With dead ends: 2373 [2020-09-25 07:22:24,994 INFO L226 Difference]: Without dead ends: 1687 [2020-09-25 07:22:25,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:22:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-09-25 07:22:25,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1286. [2020-09-25 07:22:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2020-09-25 07:22:25,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1428 transitions. [2020-09-25 07:22:25,281 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1428 transitions. Word has length 106 [2020-09-25 07:22:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:22:25,283 INFO L479 AbstractCegarLoop]: Abstraction has 1286 states and 1428 transitions. [2020-09-25 07:22:25,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:22:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1428 transitions. [2020-09-25 07:22:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 07:22:25,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:22:25,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:22:25,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:22:25,299 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:22:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:22:25,300 INFO L82 PathProgramCache]: Analyzing trace with hash 594820322, now seen corresponding path program 1 times [2020-09-25 07:22:25,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:22:25,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133791614] [2020-09-25 07:22:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:22:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:25,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:26,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:27,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:27,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 07:22:27,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:22:27,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2255 [2020-09-25 07:22:27,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:27,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:22:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:22:27,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:22:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:27,971 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 07:22:27,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:27,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:22:28,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 07:22:28,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:28,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:28,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 07:22:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:22:28,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 07:22:28,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:28,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:22:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:28,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:22:28,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:28,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:28,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:28,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:22:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:28,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:22:28,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:28,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 07:22:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:22:28,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 07:22:28,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:28,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:22:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:22:28,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:22:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 07:22:28,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:22:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:28,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:22:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:22:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 07:22:28,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:22:28,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:28,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:28,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:22:28,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:28,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:28,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-25 07:22:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:28,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:28,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:28,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:28,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:28,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 07:22:28,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:28,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:22:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:22:28,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:22:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:22:28,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133791614] [2020-09-25 07:22:28,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:22:28,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:22:28,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638263765] [2020-09-25 07:22:28,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:22:28,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:22:28,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:22:28,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:22:28,818 INFO L87 Difference]: Start difference. First operand 1286 states and 1428 transitions. Second operand 10 states. [2020-09-25 07:22:28,968 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 07:22:29,355 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 07:22:30,572 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 07:22:30,818 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 07:22:30,994 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-25 07:22:31,152 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 07:22:33,606 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-25 07:22:38,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:22:38,767 INFO L93 Difference]: Finished difference Result 4267 states and 4966 transitions. [2020-09-25 07:22:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 07:22:38,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 114 [2020-09-25 07:22:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:22:38,787 INFO L225 Difference]: With dead ends: 4267 [2020-09-25 07:22:38,787 INFO L226 Difference]: Without dead ends: 3017 [2020-09-25 07:22:38,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:22:38,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-09-25 07:22:38,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2625. [2020-09-25 07:22:38,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2020-09-25 07:22:38,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 2982 transitions. [2020-09-25 07:22:38,968 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 2982 transitions. Word has length 114 [2020-09-25 07:22:38,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:22:38,969 INFO L479 AbstractCegarLoop]: Abstraction has 2625 states and 2982 transitions. [2020-09-25 07:22:38,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:22:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 2982 transitions. [2020-09-25 07:22:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 07:22:38,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:22:38,977 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:22:38,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:22:38,978 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:22:38,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:22:38,978 INFO L82 PathProgramCache]: Analyzing trace with hash -926680723, now seen corresponding path program 1 times [2020-09-25 07:22:38,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:22:38,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992307368] [2020-09-25 07:22:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:22:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:39,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:39,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:39,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:39,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:43,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 07:22:44,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:22:44,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 07:22:44,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-25 07:22:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:22:44,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:22:44,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 07:22:44,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 07:22:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:22:44,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:22:44,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:22:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:44,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:22:44,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:22:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:44,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:22:44,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:44,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 07:22:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:22:44,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:22:44,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:22:44,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:22:44,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:22:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 07:22:44,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:44,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-25 07:22:44,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 07:22:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:22:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:44,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:22:44,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:22:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:44,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:44,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:44,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:22:44,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:44,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:44,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:44,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 07:22:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:44,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:44,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:45,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:45,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:22:45,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:45,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 07:22:45,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:45,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:45,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:22:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:45,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:45,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:45,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:45,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:22:45,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:45,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 07:22:45,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:45,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:45,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:45,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:45,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 07:22:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:45,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:45,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:45,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:22:45,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:45,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:22:45,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:45,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:45,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:45,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:22:45,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:45,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:45,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:45,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:45,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:45,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:45,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:22:45,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:45,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:45,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:45,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 07:22:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:45,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:45,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:45,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:45,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:45,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:22:45,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:45,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:22:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:45,365 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 07:22:45,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992307368] [2020-09-25 07:22:45,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:22:45,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:22:45,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891059868] [2020-09-25 07:22:45,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:22:45,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:22:45,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:22:45,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:22:45,369 INFO L87 Difference]: Start difference. First operand 2625 states and 2982 transitions. Second operand 9 states. [2020-09-25 07:22:45,537 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 07:22:50,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:22:50,758 INFO L93 Difference]: Finished difference Result 5816 states and 6785 transitions. [2020-09-25 07:22:50,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:22:50,759 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 179 [2020-09-25 07:22:50,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:22:50,778 INFO L225 Difference]: With dead ends: 5816 [2020-09-25 07:22:50,778 INFO L226 Difference]: Without dead ends: 3247 [2020-09-25 07:22:50,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:22:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2020-09-25 07:22:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 2810. [2020-09-25 07:22:51,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2810 states. [2020-09-25 07:22:51,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3206 transitions. [2020-09-25 07:22:51,016 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3206 transitions. Word has length 179 [2020-09-25 07:22:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:22:51,016 INFO L479 AbstractCegarLoop]: Abstraction has 2810 states and 3206 transitions. [2020-09-25 07:22:51,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:22:51,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3206 transitions. [2020-09-25 07:22:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-25 07:22:51,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:22:51,027 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:22:51,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:22:51,027 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:22:51,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:22:51,028 INFO L82 PathProgramCache]: Analyzing trace with hash -766964387, now seen corresponding path program 1 times [2020-09-25 07:22:51,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:22:51,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67261200] [2020-09-25 07:22:51,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:22:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:51,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:51,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:52,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:52,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-25 07:22:52,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:22:52,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1695 [2020-09-25 07:22:52,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:52,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:52,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-09-25 07:22:52,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:22:52,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:53,014 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 07:22:53,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:22:53,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 07:22:53,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 07:22:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:22:53,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:22:53,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:53,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:22:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:53,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:22:53,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:22:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:53,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:22:53,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 07:22:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:22:53,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:22:53,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:22:53,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:22:53,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:22:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:22:53,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:22:53,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:53,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:53,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:22:53,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 07:22:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:22:53,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 07:22:53,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 07:22:53,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:22:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:22:53,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:22:53,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:22:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:53,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:22:53,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:22:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:53,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:22:53,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 07:22:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:22:53,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:22:53,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:22:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:53,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:22:53,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:22:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:22:53,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:53,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 07:22:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:53,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:53,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 07:22:53,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:53,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 07:22:53,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:53,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 07:22:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:54,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:22:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:54,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:54,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:54,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:54,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:22:54,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:54,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:54,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:54,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:22:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:54,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:54,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:54,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:22:54,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:54,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:54,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 07:22:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:54,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:54,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:22:54,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:54,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 07:22:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:54,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:54,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:22:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:54,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:54,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:22:54,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 07:22:54,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:54,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:54,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:54,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-25 07:22:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:54,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:54,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:22:54,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:54,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:22:54,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:54,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:54,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:22:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:54,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:54,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:54,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:54,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:54,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:22:54,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:54,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:54,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 07:22:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:54,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:54,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:54,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:54,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:54,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:22:54,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:54,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:54,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:54,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:22:54,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:54,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 07:22:54,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67261200] [2020-09-25 07:22:54,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:22:54,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:22:54,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603106865] [2020-09-25 07:22:54,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:22:54,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:22:54,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:22:54,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:22:54,518 INFO L87 Difference]: Start difference. First operand 2810 states and 3206 transitions. Second operand 10 states. [2020-09-25 07:22:55,043 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 07:22:55,204 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 96