/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 12:20:03,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 12:20:03,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 12:20:03,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 12:20:03,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 12:20:03,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 12:20:03,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 12:20:03,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 12:20:03,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 12:20:03,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 12:20:03,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 12:20:03,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 12:20:03,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 12:20:03,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 12:20:03,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 12:20:03,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 12:20:03,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 12:20:03,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 12:20:03,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 12:20:03,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 12:20:03,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 12:20:03,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 12:20:03,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 12:20:03,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 12:20:03,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 12:20:03,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 12:20:03,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 12:20:03,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 12:20:03,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 12:20:03,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 12:20:03,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 12:20:03,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 12:20:03,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 12:20:03,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 12:20:03,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 12:20:03,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 12:20:03,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 12:20:03,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 12:20:03,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 12:20:03,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 12:20:03,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 12:20:03,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-14 12:20:03,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 12:20:03,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 12:20:04,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 12:20:04,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 12:20:04,000 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 12:20:04,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 12:20:04,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 12:20:04,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 12:20:04,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 12:20:04,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 12:20:04,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 12:20:04,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 12:20:04,002 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 12:20:04,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 12:20:04,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 12:20:04,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 12:20:04,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 12:20:04,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 12:20:04,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 12:20:04,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 12:20:04,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 12:20:04,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 12:20:04,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 12:20:04,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 12:20:04,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 12:20:04,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 12:20:04,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 12:20:04,005 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 12:20:04,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 12:20:04,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 12:20:04,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 12:20:04,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 12:20:04,364 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 12:20:04,364 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2020-10-14 12:20:04,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f9cbc419/634faf696cf34dd5b1c4b29f10905524/FLAGab2931da2 [2020-10-14 12:20:05,259 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 12:20:05,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2020-10-14 12:20:05,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f9cbc419/634faf696cf34dd5b1c4b29f10905524/FLAGab2931da2 [2020-10-14 12:20:05,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f9cbc419/634faf696cf34dd5b1c4b29f10905524 [2020-10-14 12:20:05,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 12:20:05,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 12:20:05,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 12:20:05,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 12:20:05,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 12:20:05,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:20:05" (1/1) ... [2020-10-14 12:20:05,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694fddfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:05, skipping insertion in model container [2020-10-14 12:20:05,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:20:05" (1/1) ... [2020-10-14 12:20:05,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 12:20:05,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 12:20:07,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 12:20:07,709 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 12:20:08,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 12:20:08,242 INFO L208 MainTranslator]: Completed translation [2020-10-14 12:20:08,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08 WrapperNode [2020-10-14 12:20:08,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 12:20:08,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 12:20:08,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 12:20:08,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 12:20:08,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... [2020-10-14 12:20:08,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... [2020-10-14 12:20:08,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... [2020-10-14 12:20:08,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... [2020-10-14 12:20:08,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... [2020-10-14 12:20:08,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... [2020-10-14 12:20:08,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... [2020-10-14 12:20:08,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 12:20:08,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 12:20:08,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 12:20:08,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 12:20:08,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 12:20:08,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 12:20:08,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 12:20:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 12:20:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-14 12:20:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-14 12:20:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-14 12:20:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-14 12:20:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-14 12:20:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-14 12:20:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-14 12:20:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-14 12:20:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-14 12:20:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-14 12:20:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2020-10-14 12:20:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-14 12:20:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-14 12:20:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 12:20:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 12:20:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 12:20:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 12:20:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 12:20:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 12:20:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 12:20:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 12:20:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 12:20:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 12:20:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 12:20:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2020-10-14 12:20:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2020-10-14 12:20:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-14 12:20:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-14 12:20:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-14 12:20:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-14 12:20:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-14 12:20:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-14 12:20:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-14 12:20:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-14 12:20:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2020-10-14 12:20:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_alloc_urbs [2020-10-14 12:20:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_free_urbs [2020-10-14 12:20:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_kill_urbs [2020-10-14 12:20:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rcvbulk_callback [2020-10-14 12:20:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_sndbulk_callback [2020-10-14 12:20:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_carrier_set [2020-10-14 12:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_carrier_check_work [2020-10-14 12:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_get_macaddr [2020-10-14 12:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rx_submit [2020-10-14 12:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_open [2020-10-14 12:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_close [2020-10-14 12:20:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_tx [2020-10-14 12:20:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_tx_timeout [2020-10-14 12:20:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_ethtool_op_get_link [2020-10-14 12:20:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_probe [2020-10-14 12:20:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_disconnect [2020-10-14 12:20:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_driver_init [2020-10-14 12:20:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_driver_exit [2020-10-14 12:20:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-14 12:20:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-14 12:20:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 12:20:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-14 12:20:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_2 [2020-10-14 12:20:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_3 [2020-10-14 12:20:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_4 [2020-10-14 12:20:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_5 [2020-10-14 12:20:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_6 [2020-10-14 12:20:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-14 12:20:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_8 [2020-10-14 12:20:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2020-10-14 12:20:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2020-10-14 12:20:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2020-10-14 12:20:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_13 [2020-10-14 12:20:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_14 [2020-10-14 12:20:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_15 [2020-10-14 12:20:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_16 [2020-10-14 12:20:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_17 [2020-10-14 12:20:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_19 [2020-10-14 12:20:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_20 [2020-10-14 12:20:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-14 12:20:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-14 12:20:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-14 12:20:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-14 12:20:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-14 12:20:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-14 12:20:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-14 12:20:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-14 12:20:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-14 12:20:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-14 12:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-14 12:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-14 12:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-14 12:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-14 12:20:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-14 12:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-14 12:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 12:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2020-10-14 12:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-14 12:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-14 12:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-14 12:20:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 12:20:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-14 12:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-14 12:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2020-10-14 12:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-10-14 12:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2020-10-14 12:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-14 12:20:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-14 12:20:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 12:20:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2020-10-14 12:20:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-10-14 12:20:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2020-10-14 12:20:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-14 12:20:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-14 12:20:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-14 12:20:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2020-10-14 12:20:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-14 12:20:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-14 12:20:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-14 12:20:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-14 12:20:08,641 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-14 12:20:08,641 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-14 12:20:08,642 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2020-10-14 12:20:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-14 12:20:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-14 12:20:08,645 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 12:20:08,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 12:20:08,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 12:20:08,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 12:20:08,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-14 12:20:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 12:20:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 12:20:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 12:20:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 12:20:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-14 12:20:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-14 12:20:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 12:20:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-14 12:20:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-14 12:20:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-14 12:20:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-14 12:20:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-14 12:20:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-14 12:20:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-14 12:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-14 12:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 12:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-14 12:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-14 12:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-14 12:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 12:20:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-14 12:20:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_15 [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_19 [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-14 12:20:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_20 [2020-10-14 12:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_8 [2020-10-14 12:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_2 [2020-10-14 12:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_3 [2020-10-14 12:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_4 [2020-10-14 12:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_5 [2020-10-14 12:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_6 [2020-10-14 12:20:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-14 12:20:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2020-10-14 12:20:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2020-10-14 12:20:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2020-10-14 12:20:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-14 12:20:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-14 12:20:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 12:20:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 12:20:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-14 12:20:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-14 12:20:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_14 [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_17 [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-14 12:20:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-10-14 12:20:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_13 [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_16 [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rx_submit [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_alloc_urbs [2020-10-14 12:20:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_free_urbs [2020-10-14 12:20:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_kill_urbs [2020-10-14 12:20:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rcvbulk_callback [2020-10-14 12:20:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 12:20:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 12:20:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_sndbulk_callback [2020-10-14 12:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_carrier_set [2020-10-14 12:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_carrier_check_work [2020-10-14 12:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_get_macaddr [2020-10-14 12:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_open [2020-10-14 12:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_close [2020-10-14 12:20:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_tx [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_tx_timeout [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_ethtool_op_get_link [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_probe [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_disconnect [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_driver_init [2020-10-14 12:20:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_driver_exit [2020-10-14 12:20:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-14 12:20:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-14 12:20:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 12:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 12:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 12:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-14 12:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-14 12:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-14 12:20:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 12:20:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 12:20:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 12:20:09,429 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 12:20:10,770 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-14 12:20:11,341 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 12:20:11,342 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 12:20:11,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:20:11 BoogieIcfgContainer [2020-10-14 12:20:11,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 12:20:11,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 12:20:11,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 12:20:11,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 12:20:11,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:20:05" (1/3) ... [2020-10-14 12:20:11,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74696426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:20:11, skipping insertion in model container [2020-10-14 12:20:11,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:20:08" (2/3) ... [2020-10-14 12:20:11,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74696426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:20:11, skipping insertion in model container [2020-10-14 12:20:11,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:20:11" (3/3) ... [2020-10-14 12:20:11,360 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2020-10-14 12:20:11,371 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 12:20:11,380 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 12:20:11,395 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 12:20:11,425 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 12:20:11,426 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 12:20:11,426 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 12:20:11,426 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 12:20:11,426 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 12:20:11,426 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 12:20:11,426 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 12:20:11,426 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 12:20:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states. [2020-10-14 12:20:11,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 12:20:11,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:20:11,501 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:20:11,502 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:20:11,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:20:11,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1271315482, now seen corresponding path program 1 times [2020-10-14 12:20:11,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:20:11,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178939253] [2020-10-14 12:20:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:20:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:12,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:12,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:14,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:14,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 12:20:14,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:20:14,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2868 [2020-10-14 12:20:14,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:14,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 12:20:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 12:20:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 12:20:15,798 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:20:15,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:20:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:15,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:16,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 12:20:16,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:20:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:16,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:16,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:20:16,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:20:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:16,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:16,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:20:16,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:16,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:20:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:16,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:16,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:20:16,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:20:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:16,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:20:16,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:20:16,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:16,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 12:20:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 12:20:16,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:20:16,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 12:20:16,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:20:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:16,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 12:20:16,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:20:16,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:16,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:16,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:16,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:16,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:16,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:20:16,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:16,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:16,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:16,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:16,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 12:20:16,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178939253] [2020-10-14 12:20:16,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:20:16,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 12:20:16,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300056400] [2020-10-14 12:20:16,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 12:20:16,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:20:16,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 12:20:16,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 12:20:16,310 INFO L87 Difference]: Start difference. First operand 862 states. Second operand 6 states. [2020-10-14 12:20:17,050 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:20:17,979 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 12:20:18,744 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 12:20:40,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:20:40,834 INFO L93 Difference]: Finished difference Result 3077 states and 4067 transitions. [2020-10-14 12:20:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 12:20:40,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-10-14 12:20:40,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:20:40,871 INFO L225 Difference]: With dead ends: 3077 [2020-10-14 12:20:40,871 INFO L226 Difference]: Without dead ends: 2209 [2020-10-14 12:20:40,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:20:40,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2020-10-14 12:20:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 1569. [2020-10-14 12:20:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1569 states. [2020-10-14 12:20:41,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 1886 transitions. [2020-10-14 12:20:41,442 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 1886 transitions. Word has length 51 [2020-10-14 12:20:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:20:41,442 INFO L479 AbstractCegarLoop]: Abstraction has 1569 states and 1886 transitions. [2020-10-14 12:20:41,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 12:20:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 1886 transitions. [2020-10-14 12:20:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 12:20:41,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:20:41,448 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:20:41,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 12:20:41,449 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:20:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:20:41,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1605665472, now seen corresponding path program 1 times [2020-10-14 12:20:41,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:20:41,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496587056] [2020-10-14 12:20:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:20:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:41,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:41,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:43,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:43,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 12:20:43,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:20:43,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1707 [2020-10-14 12:20:43,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:43,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 12:20:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:20:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:20:43,943 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:20:43,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:20:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:43,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:44,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 12:20:44,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:20:44,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:20:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:44,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:20:44,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:44,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:20:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:44,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:20:44,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:20:44,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:20:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:44,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:20:44,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:44,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:20:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:20:44,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:20:44,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 12:20:44,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 12:20:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:20:44,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:20:44,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:20:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:20:44,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:20:44,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:44,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:20:44,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:44,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:20:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:20:44,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:20:44,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:44,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:44,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:44,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:44,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:44,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:44,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:20:44,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:44,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:44,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 12:20:44,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496587056] [2020-10-14 12:20:44,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:20:44,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:20:44,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043554135] [2020-10-14 12:20:44,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:20:44,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:20:44,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:20:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:20:44,373 INFO L87 Difference]: Start difference. First operand 1569 states and 1886 transitions. Second operand 7 states. [2020-10-14 12:20:45,125 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:20:46,408 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 12:20:47,133 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 12:20:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:20:59,309 INFO L93 Difference]: Finished difference Result 2299 states and 3002 transitions. [2020-10-14 12:20:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 12:20:59,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-10-14 12:20:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:20:59,324 INFO L225 Difference]: With dead ends: 2299 [2020-10-14 12:20:59,324 INFO L226 Difference]: Without dead ends: 2286 [2020-10-14 12:20:59,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:20:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2020-10-14 12:20:59,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 1569. [2020-10-14 12:20:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1569 states. [2020-10-14 12:20:59,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 1885 transitions. [2020-10-14 12:20:59,693 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 1885 transitions. Word has length 67 [2020-10-14 12:20:59,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:20:59,694 INFO L479 AbstractCegarLoop]: Abstraction has 1569 states and 1885 transitions. [2020-10-14 12:20:59,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:20:59,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 1885 transitions. [2020-10-14 12:20:59,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 12:20:59,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:20:59,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:20:59,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 12:20:59,698 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:20:59,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:20:59,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1548407170, now seen corresponding path program 1 times [2020-10-14 12:20:59,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:20:59,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315053632] [2020-10-14 12:20:59,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:20:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:59,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:00,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:00,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 12:21:00,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:00,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-10-14 12:21:00,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:00,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:00,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:21:00,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:21:00,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 12:21:00,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:01,762 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:21:01,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:21:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:02,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-14 12:21:02,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:21:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:02,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:21:02,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:21:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:21:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:02,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:21:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:02,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:21:02,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:21:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:21:02,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:21:02,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:02,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:21:02,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 12:21:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:21:02,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 12:21:02,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:21:02,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:21:02,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 12:21:02,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:02,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:21:02,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:02,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:21:02,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:21:02,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:02,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:02,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:02,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:02,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:02,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:02,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:21:02,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:02,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:02,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:02,470 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 12:21:02,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315053632] [2020-10-14 12:21:02,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:21:02,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:21:02,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911283597] [2020-10-14 12:21:02,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:21:02,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:21:02,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:21:02,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:21:02,473 INFO L87 Difference]: Start difference. First operand 1569 states and 1885 transitions. Second operand 7 states. [2020-10-14 12:21:03,122 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:21:04,007 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-14 12:21:04,740 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:21:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:21:26,913 INFO L93 Difference]: Finished difference Result 5800 states and 7483 transitions. [2020-10-14 12:21:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 12:21:26,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-10-14 12:21:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:21:26,938 INFO L225 Difference]: With dead ends: 5800 [2020-10-14 12:21:26,939 INFO L226 Difference]: Without dead ends: 4247 [2020-10-14 12:21:26,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:21:26,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2020-10-14 12:21:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 3473. [2020-10-14 12:21:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3473 states. [2020-10-14 12:21:27,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3473 states to 3473 states and 4329 transitions. [2020-10-14 12:21:27,903 INFO L78 Accepts]: Start accepts. Automaton has 3473 states and 4329 transitions. Word has length 67 [2020-10-14 12:21:27,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:21:27,904 INFO L479 AbstractCegarLoop]: Abstraction has 3473 states and 4329 transitions. [2020-10-14 12:21:27,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:21:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3473 states and 4329 transitions. [2020-10-14 12:21:27,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 12:21:27,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:21:27,906 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:21:27,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 12:21:27,906 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:21:27,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:21:27,907 INFO L82 PathProgramCache]: Analyzing trace with hash -756412678, now seen corresponding path program 1 times [2020-10-14 12:21:27,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:21:27,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732446425] [2020-10-14 12:21:27,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:21:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:28,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:28,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:28,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 12:21:28,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-10-14 12:21:28,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:28,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:21:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 12:21:28,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:29,285 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:21:29,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:21:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:29,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-14 12:21:29,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:21:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:29,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:29,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:21:29,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:29,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:21:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:29,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:21:29,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:29,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:29,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:21:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:29,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 12:21:29,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:29,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:29,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:21:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:21:29,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:21:29,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:29,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:21:29,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:29,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 12:21:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:21:29,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 12:21:29,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:21:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:29,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:21:29,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 12:21:29,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:29,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:29,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:21:29,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:29,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:21:29,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:21:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:29,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:29,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:29,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:29,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:29,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:29,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:21:29,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:29,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:29,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:30,025 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 12:21:30,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732446425] [2020-10-14 12:21:30,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:21:30,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 12:21:30,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502409837] [2020-10-14 12:21:30,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 12:21:30,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:21:30,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 12:21:30,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 12:21:30,029 INFO L87 Difference]: Start difference. First operand 3473 states and 4329 transitions. Second operand 8 states. [2020-10-14 12:21:30,656 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:21:31,546 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2020-10-14 12:21:32,263 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 368 [2020-10-14 12:21:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:21:46,573 INFO L93 Difference]: Finished difference Result 4239 states and 5479 transitions. [2020-10-14 12:21:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 12:21:46,575 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-14 12:21:46,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:21:46,598 INFO L225 Difference]: With dead ends: 4239 [2020-10-14 12:21:46,598 INFO L226 Difference]: Without dead ends: 4236 [2020-10-14 12:21:46,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 12:21:46,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4236 states. [2020-10-14 12:21:47,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4236 to 3472. [2020-10-14 12:21:47,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3472 states. [2020-10-14 12:21:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 4327 transitions. [2020-10-14 12:21:47,540 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 4327 transitions. Word has length 68 [2020-10-14 12:21:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:21:47,540 INFO L479 AbstractCegarLoop]: Abstraction has 3472 states and 4327 transitions. [2020-10-14 12:21:47,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 12:21:47,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 4327 transitions. [2020-10-14 12:21:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 12:21:47,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:21:47,544 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:21:47,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 12:21:47,546 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:21:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:21:47,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1974382335, now seen corresponding path program 1 times [2020-10-14 12:21:47,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:21:47,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303006875] [2020-10-14 12:21:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:21:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:47,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:48,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:48,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 12:21:48,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:48,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-14 12:21:48,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:48,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:21:48,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 12:21:48,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:48,867 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:21:48,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:21:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:48,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:49,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-14 12:21:49,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:21:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:49,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:49,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:21:49,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:49,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:21:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:49,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:21:49,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:49,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:21:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:49,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:21:49,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:49,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:49,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:21:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:21:49,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:21:49,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:21:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:49,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 12:21:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:21:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 12:21:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:21:49,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:49,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:21:49,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 12:21:49,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:49,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:49,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:49,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:21:49,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:49,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:49,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:21:49,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:21:49,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:49,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:49,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:49,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:49,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:49,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:49,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:49,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:21:49,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:49,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:49,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:49,539 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 12:21:49,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303006875] [2020-10-14 12:21:49,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:21:49,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:21:49,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076762865] [2020-10-14 12:21:49,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:21:49,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:21:49,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:21:49,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:21:49,544 INFO L87 Difference]: Start difference. First operand 3472 states and 4327 transitions. Second operand 7 states. [2020-10-14 12:21:50,216 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:21:51,140 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 12:21:51,833 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 12:22:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:22:04,148 INFO L93 Difference]: Finished difference Result 4238 states and 5477 transitions. [2020-10-14 12:22:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 12:22:04,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-10-14 12:22:04,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:22:04,171 INFO L225 Difference]: With dead ends: 4238 [2020-10-14 12:22:04,171 INFO L226 Difference]: Without dead ends: 4235 [2020-10-14 12:22:04,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:22:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4235 states. [2020-10-14 12:22:04,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4235 to 3471. [2020-10-14 12:22:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3471 states. [2020-10-14 12:22:04,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 4325 transitions. [2020-10-14 12:22:04,812 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 4325 transitions. Word has length 69 [2020-10-14 12:22:04,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:22:04,812 INFO L479 AbstractCegarLoop]: Abstraction has 3471 states and 4325 transitions. [2020-10-14 12:22:04,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:22:04,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 4325 transitions. [2020-10-14 12:22:04,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 12:22:04,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:22:04,815 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:22:04,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 12:22:04,816 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:22:04,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:22:04,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1076731171, now seen corresponding path program 1 times [2020-10-14 12:22:04,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:22:04,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412378144] [2020-10-14 12:22:04,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:22:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:04,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:05,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:05,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 12:22:05,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-14 12:22:05,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:05,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:05,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:05,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:05,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 12:22:05,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,243 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:22:06,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:22:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:06,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-14 12:22:06,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:22:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:06,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:22:06,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:22:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:06,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:22:06,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:06,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:22:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:06,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:22:06,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:06,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:06,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:22:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:22:06,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:06,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:22:06,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 12:22:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:22:06,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 12:22:06,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:06,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:22:06,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:22:06,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 12:22:06,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:06,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:06,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:06,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:06,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:06,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:22:06,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:06,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:06,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:07,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:07,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:07,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:07,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:07,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:07,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:07,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:07,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:07,029 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 12:22:07,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412378144] [2020-10-14 12:22:07,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:22:07,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:22:07,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658840893] [2020-10-14 12:22:07,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:22:07,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:22:07,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:22:07,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:22:07,032 INFO L87 Difference]: Start difference. First operand 3471 states and 4325 transitions. Second operand 7 states. [2020-10-14 12:22:07,703 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:22:08,544 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 12:22:09,286 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 12:22:21,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:22:21,103 INFO L93 Difference]: Finished difference Result 4237 states and 5475 transitions. [2020-10-14 12:22:21,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 12:22:21,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-14 12:22:21,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:22:21,126 INFO L225 Difference]: With dead ends: 4237 [2020-10-14 12:22:21,126 INFO L226 Difference]: Without dead ends: 4234 [2020-10-14 12:22:21,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:22:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2020-10-14 12:22:21,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 3470. [2020-10-14 12:22:21,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3470 states. [2020-10-14 12:22:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 4323 transitions. [2020-10-14 12:22:21,803 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 4323 transitions. Word has length 70 [2020-10-14 12:22:21,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:22:21,803 INFO L479 AbstractCegarLoop]: Abstraction has 3470 states and 4323 transitions. [2020-10-14 12:22:21,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:22:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 4323 transitions. [2020-10-14 12:22:21,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 12:22:21,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:22:21,806 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:22:21,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 12:22:21,806 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:22:21,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:22:21,807 INFO L82 PathProgramCache]: Analyzing trace with hash 980656004, now seen corresponding path program 1 times [2020-10-14 12:22:21,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:22:21,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925168406] [2020-10-14 12:22:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:22:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:21,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:22,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:22,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 12:22:22,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:22,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 572 [2020-10-14 12:22:22,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:22,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:22,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:22,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:22,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 12:22:22,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,122 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:22:23,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:22:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:23,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 12:22:23,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:22:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:23,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:22:23,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:23,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:22:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:23,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:23,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:23,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:22:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:23,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:22:23,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:23,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:23,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:23,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:22:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:22:23,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:23,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:22:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:23,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 12:22:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:22:23,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 12:22:23,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:22:23,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:22:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:22:23,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:23,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:23,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:22:23,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:23,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:23,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:22:23,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:23,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:23,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:23,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:23,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:23,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:23,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:23,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:23,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:23,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:23,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:23,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 12:22:23,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925168406] [2020-10-14 12:22:23,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:22:23,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:22:23,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190583873] [2020-10-14 12:22:23,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:22:23,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:22:23,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:22:23,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:22:23,652 INFO L87 Difference]: Start difference. First operand 3470 states and 4323 transitions. Second operand 7 states. [2020-10-14 12:22:24,276 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2020-10-14 12:22:25,104 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 12:22:25,850 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 12:22:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:22:38,045 INFO L93 Difference]: Finished difference Result 4236 states and 5473 transitions. [2020-10-14 12:22:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 12:22:38,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-10-14 12:22:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:22:38,063 INFO L225 Difference]: With dead ends: 4236 [2020-10-14 12:22:38,063 INFO L226 Difference]: Without dead ends: 4211 [2020-10-14 12:22:38,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 12:22:38,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2020-10-14 12:22:38,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 3450. [2020-10-14 12:22:38,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3450 states. [2020-10-14 12:22:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 4300 transitions. [2020-10-14 12:22:38,679 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 4300 transitions. Word has length 71 [2020-10-14 12:22:38,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:22:38,680 INFO L479 AbstractCegarLoop]: Abstraction has 3450 states and 4300 transitions. [2020-10-14 12:22:38,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:22:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 4300 transitions. [2020-10-14 12:22:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-14 12:22:38,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:22:38,693 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:22:38,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 12:22:38,693 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:22:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:22:38,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1205144964, now seen corresponding path program 1 times [2020-10-14 12:22:38,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:22:38,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163864855] [2020-10-14 12:22:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:22:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:38,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:39,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:39,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:39,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:44,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:44,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-14 12:22:44,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 12:22:44,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5253 [2020-10-14 12:22:44,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:44,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:44,920 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:22:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:22:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:44,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:45,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:45,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 12:22:45,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:45,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:45,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:45,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:45,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:45,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:22:45,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:45,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:45,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:45,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 12:22:45,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:22:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:45,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:45,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:45,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:45,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:45,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:45,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:45,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:45,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:22:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:45,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:45,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:45,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:45,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:45,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:45,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:45,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:45,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:22:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:45,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:22:45,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:22:45,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:45,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:45,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:45,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:45,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 12:22:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:45,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:45,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 12:22:50,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 12:22:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 12:22:50,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 12:22:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:22:50,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 12:22:50,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:22:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 12:22:50,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:50,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:50,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:50,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 12:22:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:50,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:22:50,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:50,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:22:50,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 12:22:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 12:22:50,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:22:50,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 12:22:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:50,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:22:50,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 12:22:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:50,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:22:50,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:50,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:50,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:50,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 12:22:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 12:22:50,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 12:22:50,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 12:22:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:50,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:50,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:22:50,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:50,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:50,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 12:22:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 12:22:50,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 12:22:50,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 12:22:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:50,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:50,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:50,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:50,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 12:22:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:50,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:50,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:50,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 12:22:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:50,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:50,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:50,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 12:22:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:50,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:50,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 12:22:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:50,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:50,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:50,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:50,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:50,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 12:22:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:50,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 12:22:51,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 12:22:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 12:22:51,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 12:22:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 12:22:51,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:22:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 12:22:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 12:22:51,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:22:51,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 12:22:51,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:51,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:51,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:51,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 12:22:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:51,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:22:51,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:51,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 12:22:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:51,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:22:51,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-14 12:22:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 12:22:51,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:22:51,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 12:22:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:51,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 12:22:51,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-14 12:22:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:22:51,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 12:22:51,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 12:22:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:22:51,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:22:51,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:51,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:51,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:51,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:51,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:22:51,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:51,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:51,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:51,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:51,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:51,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:51,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:51,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-14 12:22:51,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163864855] [2020-10-14 12:22:51,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:22:51,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 12:22:51,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802424283] [2020-10-14 12:22:51,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 12:22:51,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:22:51,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 12:22:51,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-10-14 12:22:51,827 INFO L87 Difference]: Start difference. First operand 3450 states and 4300 transitions. Second operand 15 states. [2020-10-14 12:22:52,666 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-14 12:22:54,311 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-14 12:22:55,101 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 12:23:21,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:21,287 INFO L93 Difference]: Finished difference Result 11907 states and 15911 transitions. [2020-10-14 12:23:21,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 12:23:21,289 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 238 [2020-10-14 12:23:21,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:21,322 INFO L225 Difference]: With dead ends: 11907 [2020-10-14 12:23:21,322 INFO L226 Difference]: Without dead ends: 8473 [2020-10-14 12:23:21,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=425, Invalid=1215, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 12:23:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2020-10-14 12:23:22,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 5519. [2020-10-14 12:23:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5519 states. [2020-10-14 12:23:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 6773 transitions. [2020-10-14 12:23:22,558 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 6773 transitions. Word has length 238 [2020-10-14 12:23:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:22,559 INFO L479 AbstractCegarLoop]: Abstraction has 5519 states and 6773 transitions. [2020-10-14 12:23:22,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 12:23:22,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 6773 transitions. [2020-10-14 12:23:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-14 12:23:22,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:22,577 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:23:22,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 12:23:22,577 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:22,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:22,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1453847576, now seen corresponding path program 1 times [2020-10-14 12:23:22,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:22,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990190238] [2020-10-14 12:23:22,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:22,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:22,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:23,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:23,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:23,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:27,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:27,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-14 12:23:27,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 12:23:27,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5160 [2020-10-14 12:23:27,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:27,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:27,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 12:23:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 12:23:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:23:27,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:28,723 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-14 12:23:28,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:23:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:28,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 12:23:28,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:28,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:28,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:23:28,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:28,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:23:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:28,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:28,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:28,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:23:28,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:28,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:29,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:23:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:29,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:29,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:29,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:29,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:29,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:23:29,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 12:23:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:29,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:23:29,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:29,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:29,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:29,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 12:23:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:29,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:29,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:29,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 12:23:29,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:29,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:29,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:29,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:29,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:29,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 12:23:29,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:29,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:29,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:29,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:29,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:23:29,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:29,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:29,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:29,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:29,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 12:23:29,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:29,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:29,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:29,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:23:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:29,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:29,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:29,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 12:23:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:29,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking...