/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:22:05,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:22:05,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:22:05,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:22:05,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:22:05,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:22:05,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:22:05,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:22:05,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:22:05,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:22:05,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:22:05,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:22:05,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:22:05,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:22:05,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:22:05,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:22:05,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:22:05,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:22:05,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:22:05,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:22:05,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:22:05,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:22:05,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:22:05,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:22:05,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:22:05,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:22:05,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:22:05,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:22:05,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:22:05,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:22:05,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:22:05,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:22:05,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:22:05,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:22:05,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:22:05,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:22:05,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:22:05,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:22:05,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:22:05,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:22:05,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:22:05,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 07:22:05,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:22:05,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:22:05,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:22:05,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:22:05,464 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:22:05,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:22:05,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:22:05,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:22:05,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:22:05,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:22:05,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:22:05,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:22:05,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:22:05,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:22:05,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:22:05,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:22:05,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:22:05,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:22:05,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:22:05,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:22:05,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:22:05,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:22:05,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:22:05,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:22:05,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:22:05,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:22:05,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 07:22:05,470 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 07:22:05,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:22:05,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:22:05,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:22:05,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:22:05,935 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:22:05,936 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 07:22:06,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efe3505de/e6c0bdd1ca05475da746ba3b3ceec3ef/FLAG1d64c3225 [2020-09-25 07:22:06,877 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:22:06,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 07:22:06,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efe3505de/e6c0bdd1ca05475da746ba3b3ceec3ef/FLAG1d64c3225 [2020-09-25 07:22:07,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efe3505de/e6c0bdd1ca05475da746ba3b3ceec3ef [2020-09-25 07:22:07,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:22:07,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:22:07,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:22:07,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:22:07,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:22:07,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:22:07" (1/1) ... [2020-09-25 07:22:07,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a304747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:07, skipping insertion in model container [2020-09-25 07:22:07,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:22:07" (1/1) ... [2020-09-25 07:22:07,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:22:07,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:22:09,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:22:09,189 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:22:09,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:22:09,541 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:22:09,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09 WrapperNode [2020-09-25 07:22:09,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:22:09,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:22:09,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:22:09,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:22:09,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... [2020-09-25 07:22:09,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:22:09,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:22:09,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:22:09,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:22:09,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:22:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:22:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:22:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-25 07:22:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-25 07:22:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-25 07:22:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-25 07:22:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-25 07:22:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-25 07:22:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 07:22:09,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 07:22:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 07:22:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 07:22:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-25 07:22:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-25 07:22:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-25 07:22:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 07:22:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-25 07:22:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 07:22:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 07:22:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 07:22:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 07:22:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 07:22:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 07:22:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 07:22:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 07:22:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 07:22:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 07:22:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-25 07:22:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-25 07:22:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-25 07:22:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-25 07:22:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-25 07:22:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 07:22:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-25 07:22:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-25 07:22:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-25 07:22:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-25 07:22:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-25 07:22:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-25 07:22:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-25 07:22:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-25 07:22:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-25 07:22:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-25 07:22:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-25 07:22:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:22:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 07:22:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 07:22:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 07:22:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 07:22:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 07:22:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-25 07:22:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-25 07:22:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 07:22:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 07:22:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 07:22:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 07:22:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 07:22:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 07:22:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 07:22:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 07:22:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 07:22:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 07:22:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 07:22:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 07:22:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 07:22:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 07:22:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 07:22:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 07:22:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 07:22:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 07:22:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-25 07:22:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-25 07:22:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 07:22:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-25 07:22:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-25 07:22:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 07:22:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-25 07:22:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 07:22:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 07:22:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 07:22:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-25 07:22:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 07:22:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 07:22:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-25 07:22:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 07:22:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 07:22:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 07:22:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-25 07:22:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-25 07:22:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-25 07:22:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-25 07:22:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-25 07:22:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-25 07:22:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-25 07:22:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 07:22:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 07:22:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 07:22:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-25 07:22:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:22:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 07:22:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-25 07:22:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-25 07:22:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-25 07:22:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:22:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-25 07:22:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-25 07:22:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-25 07:22:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-25 07:22:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 07:22:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-25 07:22:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 07:22:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 07:22:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:22:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 07:22:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 07:22:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 07:22:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 07:22:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 07:22:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 07:22:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-25 07:22:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 07:22:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:22:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 07:22:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-25 07:22:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-25 07:22:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:22:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-25 07:22:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 07:22:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 07:22:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 07:22:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 07:22:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-25 07:22:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-25 07:22:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 07:22:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:22:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:22:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:22:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 07:22:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:22:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 07:22:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 07:22:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:22:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 07:22:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 07:22:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 07:22:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 07:22:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 07:22:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 07:22:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 07:22:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-25 07:22:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-25 07:22:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 07:22:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 07:22:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-25 07:22:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-25 07:22:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-25 07:22:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-25 07:22:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-25 07:22:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-25 07:22:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 07:22:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-25 07:22:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 07:22:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-25 07:22:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 07:22:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-25 07:22:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-25 07:22:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 07:22:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 07:22:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 07:22:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-25 07:22:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-25 07:22:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-25 07:22:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-25 07:22:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-25 07:22:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-25 07:22:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-25 07:22:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-25 07:22:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-25 07:22:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-25 07:22:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-25 07:22:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:22:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-25 07:22:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-25 07:22:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-25 07:22:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-25 07:22:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:22:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-25 07:22:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-25 07:22:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-25 07:22:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 07:22:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 07:22:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 07:22:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:22:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 07:22:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 07:22:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 07:22:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 07:22:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 07:22:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 07:22:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 07:22:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 07:22:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 07:22:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 07:22:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 07:22:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 07:22:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 07:22:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 07:22:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 07:22:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 07:22:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:22:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 07:22:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:22:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:22:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:22:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 07:22:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:22:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 07:22:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 07:22:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 07:22:10,513 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 07:22:11,740 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:22:11,740 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 07:22:11,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:22:11 BoogieIcfgContainer [2020-09-25 07:22:11,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:22:11,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:22:11,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:22:11,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:22:11,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:22:07" (1/3) ... [2020-09-25 07:22:11,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb9ded6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:22:11, skipping insertion in model container [2020-09-25 07:22:11,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:22:09" (2/3) ... [2020-09-25 07:22:11,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb9ded6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:22:11, skipping insertion in model container [2020-09-25 07:22:11,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:22:11" (3/3) ... [2020-09-25 07:22:11,760 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 07:22:11,772 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:22:11,783 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:22:11,806 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:22:11,837 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:22:11,838 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:22:11,838 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:22:11,838 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:22:11,838 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:22:11,838 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:22:11,839 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:22:11,839 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:22:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-25 07:22:11,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 07:22:11,900 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:22:11,902 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:22:11,902 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:22:11,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:22:11,910 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-25 07:22:11,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:22:11,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259558967] [2020-09-25 07:22:11,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:22:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:12,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:12,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:13,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:16,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:17,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:17,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 07:22:17,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:22:17,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 07:22:17,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:17,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:22:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 07:22:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:22:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:22:18,006 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 07:22:18,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 07:22:18,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 07:22:18,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:22:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:22:18,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:22:18,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 07:22:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:22:18,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:22:18,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 07:22:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:22:18,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:22:18,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:22:18,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:22:18,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 07:22:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:18,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:18,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 07:22:18,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 07:22:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 07:22:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 07:22:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:22:18,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 07:22:18,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:22:18,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:22:18,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:22:18,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:22:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:18,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:18,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:18,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:22:18,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:18,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:22:18,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:18,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:18,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:18,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:18,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:18,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:18,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 07:22:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:19,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:19,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:19,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:19,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:22:19,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:19,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:22:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:19,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 07:22:19,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259558967] [2020-09-25 07:22:19,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:22:19,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:22:19,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971832448] [2020-09-25 07:22:19,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:22:19,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:22:19,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:22:19,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:22:19,132 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 8 states. [2020-09-25 07:22:20,211 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 07:22:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:22:34,486 INFO L93 Difference]: Finished difference Result 4148 states and 4969 transitions. [2020-09-25 07:22:34,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 07:22:34,488 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2020-09-25 07:22:34,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:22:34,550 INFO L225 Difference]: With dead ends: 4148 [2020-09-25 07:22:34,551 INFO L226 Difference]: Without dead ends: 3103 [2020-09-25 07:22:34,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2020-09-25 07:22:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2020-09-25 07:22:34,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 1994. [2020-09-25 07:22:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-09-25 07:22:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2196 transitions. [2020-09-25 07:22:34,990 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2196 transitions. Word has length 230 [2020-09-25 07:22:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:22:34,995 INFO L479 AbstractCegarLoop]: Abstraction has 1994 states and 2196 transitions. [2020-09-25 07:22:34,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:22:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2196 transitions. [2020-09-25 07:22:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 07:22:35,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:22:35,012 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:22:35,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:22:35,013 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:22:35,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:22:35,014 INFO L82 PathProgramCache]: Analyzing trace with hash -541143658, now seen corresponding path program 1 times [2020-09-25 07:22:35,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:22:35,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230960039] [2020-09-25 07:22:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:22:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:35,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:37,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:40,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:40,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 07:22:40,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:22:40,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:22:40,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:40,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:22:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 07:22:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:22:40,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:40,649 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 07:22:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:40,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:40,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:40,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 07:22:40,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:40,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 07:22:40,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:40,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:22:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:22:41,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:22:41,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 07:22:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:22:41,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:22:41,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 07:22:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:22:41,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:22:41,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:22:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:22:41,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:22:41,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 07:22:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:41,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 07:22:41,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:22:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:22:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:22:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 07:22:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:41,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:22:41,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 07:22:41,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:22:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 07:22:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 07:22:41,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 07:22:41,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 07:22:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:22:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:22:41,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 07:22:41,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:22:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:22:41,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:22:41,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:22:41,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 07:22:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:22:41,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 07:22:41,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:22:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:22:41,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:22:41,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:22:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:22:41,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-25 07:22:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:41,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:41,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:22:41,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:22:41,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:22:41,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:22:41,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:22:41,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 07:22:41,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:22:41,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:22:41,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:22:41,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:22:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 07:22:41,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230960039] [2020-09-25 07:22:41,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:22:41,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:22:41,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215970546] [2020-09-25 07:22:41,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:22:41,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:22:41,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:22:41,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:22:41,970 INFO L87 Difference]: Start difference. First operand 1994 states and 2196 transitions. Second operand 10 states. [2020-09-25 07:22:43,526 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 07:22:43,807 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 07:22:52,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:22:52,088 INFO L93 Difference]: Finished difference Result 4671 states and 5330 transitions. [2020-09-25 07:22:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:22:52,091 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-09-25 07:22:52,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:22:52,107 INFO L225 Difference]: With dead ends: 4671 [2020-09-25 07:22:52,107 INFO L226 Difference]: Without dead ends: 2828 [2020-09-25 07:22:52,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:22:52,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2020-09-25 07:22:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 1995. [2020-09-25 07:22:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2020-09-25 07:22:52,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2197 transitions. [2020-09-25 07:22:52,342 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2197 transitions. Word has length 276 [2020-09-25 07:22:52,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:22:52,344 INFO L479 AbstractCegarLoop]: Abstraction has 1995 states and 2197 transitions. [2020-09-25 07:22:52,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:22:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2197 transitions. [2020-09-25 07:22:52,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-25 07:22:52,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:22:52,351 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:22:52,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:22:52,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:22:52,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:22:52,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1284376602, now seen corresponding path program 1 times [2020-09-25 07:22:52,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:22:52,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741598948] [2020-09-25 07:22:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:22:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:22:52,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:52,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:22:55,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking...