/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=1.0 --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 09:39:37,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:39:37,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:39:37,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:39:37,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:39:37,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:39:37,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:39:37,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:39:37,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:39:37,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:39:37,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:39:37,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:39:37,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:39:37,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:39:37,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:39:37,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:39:37,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:39:37,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:39:37,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:39:37,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:39:37,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:39:37,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:39:37,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:39:37,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:39:37,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:39:37,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:39:37,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:39:37,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:39:37,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:39:37,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:39:37,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:39:37,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:39:37,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:39:37,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:39:37,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:39:37,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:39:37,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:39:37,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:39:37,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:39:37,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:39:37,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:39:37,331 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 09:39:37,382 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:39:37,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:39:37,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:39:37,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:39:37,385 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:39:37,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:39:37,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:39:37,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:39:37,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:39:37,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:39:37,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:39:37,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:39:37,387 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:39:37,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:39:37,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:39:37,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:39:37,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:39:37,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:39:37,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:39:37,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:39:37,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:39:37,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:39:37,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:39:37,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:39:37,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:39:37,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:39:37,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 09:39:37,391 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 09:39:37,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:39:37,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:39:37,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:39:37,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:39:37,942 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:39:37,943 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 09:39:38,033 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee26505a0/47ec35b93bfd49318f46dcb82ba197f3/FLAG614b42900 [2020-09-25 09:39:38,983 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:39:38,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-25 09:39:39,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee26505a0/47ec35b93bfd49318f46dcb82ba197f3/FLAG614b42900 [2020-09-25 09:39:39,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee26505a0/47ec35b93bfd49318f46dcb82ba197f3 [2020-09-25 09:39:39,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:39:39,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:39:39,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:39:39,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:39:39,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:39:39,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:39:39" (1/1) ... [2020-09-25 09:39:39,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab1dbf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:39, skipping insertion in model container [2020-09-25 09:39:39,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:39:39" (1/1) ... [2020-09-25 09:39:39,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:39:39,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:39:41,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:39:41,118 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:39:41,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:39:41,453 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:39:41,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41 WrapperNode [2020-09-25 09:39:41,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:39:41,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:39:41,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:39:41,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:39:41,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (1/1) ... [2020-09-25 09:39:41,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (1/1) ... [2020-09-25 09:39:41,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (1/1) ... [2020-09-25 09:39:41,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (1/1) ... [2020-09-25 09:39:41,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (1/1) ... [2020-09-25 09:39:41,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (1/1) ... [2020-09-25 09:39:41,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (1/1) ... [2020-09-25 09:39:41,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:39:41,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:39:41,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:39:41,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:39:41,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (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 09:39:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:39:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:39:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-25 09:39:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-25 09:39:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-25 09:39:41,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-25 09:39:41,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-25 09:39:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-25 09:39:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 09:39:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 09:39:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 09:39:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 09:39:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-25 09:39:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-25 09:39:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-25 09:39:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 09:39:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-25 09:39:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 09:39:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 09:39:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 09:39:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 09:39:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 09:39:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 09:39:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 09:39:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 09:39:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 09:39:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 09:39:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-25 09:39:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-25 09:39:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-25 09:39:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-25 09:39:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-25 09:39:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 09:39:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-25 09:39:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-25 09:39:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-25 09:39:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-25 09:39:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-25 09:39:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-25 09:39:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-25 09:39:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-25 09:39:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-25 09:39:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-25 09:39:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-25 09:39:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:39:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 09:39:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 09:39:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 09:39:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 09:39:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 09:39:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-25 09:39:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-25 09:39:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 09:39:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 09:39:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 09:39:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 09:39:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 09:39:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 09:39:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 09:39:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 09:39:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 09:39:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 09:39:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 09:39:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 09:39:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 09:39:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 09:39:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 09:39:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 09:39:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 09:39:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 09:39:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-25 09:39:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-25 09:39:41,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 09:39:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-25 09:39:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-25 09:39:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 09:39:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-25 09:39:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 09:39:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 09:39:41,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 09:39:41,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-25 09:39:41,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 09:39:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 09:39:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-25 09:39:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 09:39:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-25 09:39:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-25 09:39:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 09:39:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 09:39:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 09:39:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-25 09:39:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:39:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 09:39:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-25 09:39:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 09:39:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 09:39:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 09:39:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 09:39:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-25 09:39:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 09:39:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:39:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 09:39:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-25 09:39:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-25 09:39:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:39:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-25 09:39:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 09:39:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 09:39:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 09:39:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 09:39:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-25 09:39:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-25 09:39:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 09:39:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:39:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 09:39:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:39:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 09:39:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 09:39:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 09:39:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 09:39:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:39:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 09:39:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 09:39:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 09:39:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 09:39:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 09:39:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 09:39:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 09:39:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-25 09:39:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-25 09:39:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 09:39:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 09:39:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-25 09:39:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-25 09:39:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-25 09:39:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-25 09:39:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-25 09:39:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-25 09:39:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 09:39:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-25 09:39:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 09:39:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-25 09:39:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 09:39:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-25 09:39:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-25 09:39:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 09:39:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 09:39:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 09:39:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-25 09:39:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-25 09:39:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-25 09:39:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-25 09:39:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-25 09:39:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-25 09:39:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-25 09:39:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-25 09:39:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-25 09:39:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-25 09:39:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-25 09:39:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:39:41,881 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-25 09:39:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-25 09:39:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-25 09:39:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-25 09:39:41,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:39:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-25 09:39:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-25 09:39:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-25 09:39:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 09:39:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 09:39:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 09:39:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:39:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 09:39:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 09:39:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 09:39:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 09:39:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 09:39:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 09:39:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 09:39:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 09:39:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 09:39:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 09:39:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 09:39:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 09:39:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 09:39:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 09:39:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 09:39:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 09:39:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 09:39:42,684 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 09:39:44,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:39:44,159 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 09:39:44,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:39:44 BoogieIcfgContainer [2020-09-25 09:39:44,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:39:44,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:39:44,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:39:44,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:39:44,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:39:39" (1/3) ... [2020-09-25 09:39:44,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a122509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:39:44, skipping insertion in model container [2020-09-25 09:39:44,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:41" (2/3) ... [2020-09-25 09:39:44,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a122509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:39:44, skipping insertion in model container [2020-09-25 09:39:44,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:39:44" (3/3) ... [2020-09-25 09:39:44,179 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 09:39:44,191 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:39:44,203 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:39:44,225 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:39:44,259 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:39:44,259 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:39:44,260 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:39:44,260 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:39:44,260 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:39:44,260 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:39:44,260 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:39:44,260 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:39:44,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-25 09:39:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 09:39:44,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:39:44,324 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 09:39:44,324 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:39:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:39:44,332 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-25 09:39:44,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:39:44,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105355123] [2020-09-25 09:39:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:39:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:45,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:45,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:48,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:50,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:50,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 09:39:50,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:39:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-09-25 09:39:50,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:50,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 09:39:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 09:39:50,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:39:50,590 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 09:39:50,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:39:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:50,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:50,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:50,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 09:39:50,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:50,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 09:39:50,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:50,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:50,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 09:39:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:39:51,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 09:39:51,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:39:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:39:51,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 09:39:51,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 09:39:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 09:39:51,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:39:51,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:39:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:39:51,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 09:39:51,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 09:39:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:39:51,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:39:51,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 09:39:51,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 09:39:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:39:51,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:39:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 09:39:51,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 09:39:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 09:39:51,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 09:39:51,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:39:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:39:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 09:39:51,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 09:39:51,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:39:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:39:51,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 09:39:51,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 09:39:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:51,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:51,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:39:51,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:51,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 09:39:51,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:51,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:51,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:39:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:51,727 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 09:39:51,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105355123] [2020-09-25 09:39:51,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:39:51,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:39:51,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095414891] [2020-09-25 09:39:51,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:39:51,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:39:51,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:39:51,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:39:51,761 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 8 states. [2020-09-25 09:39:53,027 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 09:40:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:40:10,254 INFO L93 Difference]: Finished difference Result 4148 states and 4969 transitions. [2020-09-25 09:40:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 09:40:10,256 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2020-09-25 09:40:10,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:40:10,318 INFO L225 Difference]: With dead ends: 4148 [2020-09-25 09:40:10,319 INFO L226 Difference]: Without dead ends: 3103 [2020-09-25 09:40:10,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2020-09-25 09:40:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2020-09-25 09:40:10,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 1994. [2020-09-25 09:40:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-09-25 09:40:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2196 transitions. [2020-09-25 09:40:10,678 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2196 transitions. Word has length 230 [2020-09-25 09:40:10,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:40:10,680 INFO L479 AbstractCegarLoop]: Abstraction has 1994 states and 2196 transitions. [2020-09-25 09:40:10,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:40:10,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2196 transitions. [2020-09-25 09:40:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 09:40:10,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:40:10,691 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 09:40:10,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:40:10,692 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:40:10,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:40:10,693 INFO L82 PathProgramCache]: Analyzing trace with hash -541143658, now seen corresponding path program 1 times [2020-09-25 09:40:10,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:40:10,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993845533] [2020-09-25 09:40:10,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:40:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:10,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:11,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:12,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:15,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:15,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 09:40:15,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:40:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5109 [2020-09-25 09:40:15,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:15,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:40:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 09:40:15,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 09:40:15,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:16,540 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 09:40:16,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:16,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:16,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:16,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 09:40:16,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 09:40:16,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:16,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:16,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:16,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:16,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:16,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:16,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 09:40:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:16,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:16,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:16,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:16,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 09:40:16,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:16,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:16,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:16,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:40:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:17,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 09:40:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 09:40:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 09:40:17,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:17,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 09:40:17,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:40:17,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:40:17,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:17,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 09:40:17,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:40:17,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 09:40:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:40:17,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:40:17,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 09:40:17,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 09:40:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:40:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:40:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 09:40:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:40:17,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:40:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 09:40:17,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:40:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 09:40:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 09:40:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 09:40:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 09:40:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:40:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:40:17,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:17,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 09:40:17,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:17,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:17,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:40:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:40:17,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 09:40:17,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 09:40:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:17,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:17,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:17,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 09:40:17,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:17,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 09:40:17,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:17,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:17,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:40:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:18,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:18,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:18,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:18,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:18,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 09:40:18,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:18,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:18,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:18,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:18,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:18,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-25 09:40:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:18,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:18,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:18,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:40:18,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:18,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 09:40:18,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:18,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:40:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:40:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:18,287 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 09:40:18,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993845533] [2020-09-25 09:40:18,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:40:18,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 09:40:18,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714626198] [2020-09-25 09:40:18,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 09:40:18,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:40:18,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 09:40:18,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:40:18,292 INFO L87 Difference]: Start difference. First operand 1994 states and 2196 transitions. Second operand 14 states. [2020-09-25 09:40:19,076 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 09:40:20,005 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-25 09:40:20,447 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 09:40:26,944 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-09-25 09:40:27,409 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 09:40:27,889 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-09-25 09:40:28,337 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 213