/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=SMALLEST --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 [2020-09-24 18:59:04,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:59:04,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:59:04,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:59:04,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:59:04,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:59:04,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:59:04,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:59:04,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:59:04,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:59:04,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:59:04,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:59:04,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:59:04,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:59:04,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:59:04,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:59:04,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:59:04,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:59:04,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:59:04,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:59:04,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:59:04,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:59:04,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:59:04,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:59:04,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:59:04,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:59:04,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:59:04,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:59:04,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:59:04,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:59:04,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:59:04,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:59:04,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:59:04,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:59:04,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:59:04,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:59:04,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:59:04,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:59:04,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:59:04,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:59:04,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:59:04,149 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 [2020-09-24 18:59:04,194 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:59:04,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:59:04,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:59:04,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:59:04,198 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:59:04,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:59:04,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:59:04,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:59:04,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:59:04,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:59:04,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:59:04,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:59:04,201 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:59:04,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:59:04,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:59:04,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:59:04,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:59:04,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:59:04,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:59:04,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:59:04,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:59:04,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:59:04,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:59:04,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:59:04,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:59:04,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:59:04,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 18:59:04,206 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:59:04,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:59:04,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:59:04,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:59:04,754 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:59:04,754 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:59:04,756 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-24 18:59:04,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44e34085a/84f6781023a04ca2abf28b8f3a885a22/FLAG88fb53cf8 [2020-09-24 18:59:05,762 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:59:05,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2020-09-24 18:59:05,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44e34085a/84f6781023a04ca2abf28b8f3a885a22/FLAG88fb53cf8 [2020-09-24 18:59:06,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44e34085a/84f6781023a04ca2abf28b8f3a885a22 [2020-09-24 18:59:06,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:59:06,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:59:06,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:59:06,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:59:06,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:59:06,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:59:06" (1/1) ... [2020-09-24 18:59:06,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc46334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:06, skipping insertion in model container [2020-09-24 18:59:06,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:59:06" (1/1) ... [2020-09-24 18:59:06,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:59:06,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:59:07,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:59:07,939 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:59:08,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:59:08,286 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:59:08,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08 WrapperNode [2020-09-24 18:59:08,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:59:08,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:59:08,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:59:08,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:59:08,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... [2020-09-24 18:59:08,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... [2020-09-24 18:59:08,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... [2020-09-24 18:59:08,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... [2020-09-24 18:59:08,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... [2020-09-24 18:59:08,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... [2020-09-24 18:59:08,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... [2020-09-24 18:59:08,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:59:08,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:59:08,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:59:08,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:59:08,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:59:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:59:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:59:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-09-24 18:59:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-09-24 18:59:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-09-24 18:59:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2020-09-24 18:59:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2020-09-24 18:59:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-09-24 18:59:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-24 18:59:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 18:59:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-24 18:59:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-24 18:59:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-09-24 18:59:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-09-24 18:59:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2020-09-24 18:59:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-24 18:59:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-09-24 18:59:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:59:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 18:59:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 18:59:08,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 18:59:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 18:59:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 18:59:08,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 18:59:08,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 18:59:08,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 18:59:08,622 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-24 18:59:08,622 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2020-09-24 18:59:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2020-09-24 18:59:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2020-09-24 18:59:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-09-24 18:59:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2020-09-24 18:59:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-24 18:59:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-09-24 18:59:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2020-09-24 18:59:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2020-09-24 18:59:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2020-09-24 18:59:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2020-09-24 18:59:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2020-09-24 18:59:08,624 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2020-09-24 18:59:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2020-09-24 18:59:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2020-09-24 18:59:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-09-24 18:59:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-09-24 18:59:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:59:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 18:59:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 18:59:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 18:59:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 18:59:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 18:59:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2020-09-24 18:59:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2020-09-24 18:59:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 18:59:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 18:59:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 18:59:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 18:59:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 18:59:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 18:59:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 18:59:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 18:59:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 18:59:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 18:59:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 18:59:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 18:59:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 18:59:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 18:59:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 18:59:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 18:59:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 18:59:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-24 18:59:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-09-24 18:59:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-09-24 18:59:08,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 18:59:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-09-24 18:59:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-09-24 18:59:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-24 18:59:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-09-24 18:59:08,634 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-24 18:59:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-24 18:59:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 18:59:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-09-24 18:59:08,635 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-24 18:59:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 18:59:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-09-24 18:59:08,636 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-24 18:59:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 18:59:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-24 18:59:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2020-09-24 18:59:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-09-24 18:59:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-09-24 18:59:08,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-09-24 18:59:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-09-24 18:59:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-09-24 18:59:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-09-24 18:59:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 18:59:08,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 18:59:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 18:59:08,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-09-24 18:59:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:59:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 18:59:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-09-24 18:59:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-09-24 18:59:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-09-24 18:59:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:59:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2020-09-24 18:59:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2020-09-24 18:59:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-09-24 18:59:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-09-24 18:59:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 18:59:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-09-24 18:59:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-24 18:59:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 18:59:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:59:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 18:59:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 18:59:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 18:59:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 18:59:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 18:59:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-24 18:59:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-09-24 18:59:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-24 18:59:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:59:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-24 18:59:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-09-24 18:59:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-09-24 18:59:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:59:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2020-09-24 18:59:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 18:59:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-24 18:59:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-24 18:59:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-24 18:59:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-09-24 18:59:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-09-24 18:59:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 18:59:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:59:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 18:59:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:59:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 18:59:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:59:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:59:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 18:59:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:59:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 18:59:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 18:59:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 18:59:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 18:59:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 18:59:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 18:59:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 18:59:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-09-24 18:59:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-09-24 18:59:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-24 18:59:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-24 18:59:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-09-24 18:59:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2020-09-24 18:59:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2020-09-24 18:59:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2020-09-24 18:59:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-09-24 18:59:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2020-09-24 18:59:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-24 18:59:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-09-24 18:59:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 18:59:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2020-09-24 18:59:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 18:59:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2020-09-24 18:59:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-09-24 18:59:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-24 18:59:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-24 18:59:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-24 18:59:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-09-24 18:59:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2020-09-24 18:59:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-09-24 18:59:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-09-24 18:59:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-09-24 18:59:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-09-24 18:59:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2020-09-24 18:59:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-09-24 18:59:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-09-24 18:59:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2020-09-24 18:59:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2020-09-24 18:59:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:59:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2020-09-24 18:59:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2020-09-24 18:59:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-09-24 18:59:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2020-09-24 18:59:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:59:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2020-09-24 18:59:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2020-09-24 18:59:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-09-24 18:59:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 18:59:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 18:59:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 18:59:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:59:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 18:59:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 18:59:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 18:59:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 18:59:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 18:59:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 18:59:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 18:59:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 18:59:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 18:59:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 18:59:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 18:59:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 18:59:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 18:59:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 18:59:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 18:59:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 18:59:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:59:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 18:59:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:59:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 18:59:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:59:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 18:59:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:59:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 18:59:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 18:59:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 18:59:09,399 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 18:59:11,093 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:59:11,094 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 18:59:11,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:59:11 BoogieIcfgContainer [2020-09-24 18:59:11,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:59:11,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:59:11,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:59:11,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:59:11,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:59:06" (1/3) ... [2020-09-24 18:59:11,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f239b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:59:11, skipping insertion in model container [2020-09-24 18:59:11,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:59:08" (2/3) ... [2020-09-24 18:59:11,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f239b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:59:11, skipping insertion in model container [2020-09-24 18:59:11,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:59:11" (3/3) ... [2020-09-24 18:59:11,123 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 [2020-09-24 18:59:11,135 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:59:11,147 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:59:11,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:59:11,216 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:59:11,216 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:59:11,216 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:59:11,217 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:59:11,217 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:59:11,217 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:59:11,217 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:59:11,217 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:59:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states. [2020-09-24 18:59:11,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 18:59:11,293 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:11,295 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] [2020-09-24 18:59:11,296 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:11,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:11,303 INFO L82 PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times [2020-09-24 18:59:11,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:11,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568507603] [2020-09-24 18:59:11,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:12,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:12,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:13,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:16,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:16,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:16,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 18:59:16,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:59:16,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 18:59:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-24 18:59:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 18:59:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:59:17,752 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:59:17,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:17,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 18:59:18,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-24 18:59:18,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:18,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:59:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:59:18,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 18:59:18,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:59:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:59:18,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 18:59:18,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 18:59:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 18:59:18,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 18:59:18,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:59:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 18:59:18,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 18:59:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:59:18,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:59:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 18:59:18,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:59:18,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 18:59:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:59:18,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:59:18,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:59:18,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 18:59:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:59:18,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 18:59:18,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 18:59:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:18,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 18:59:18,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 18:59:18,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:59:18,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 18:59:18,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:18,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 18:59:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:59:18,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 18:59:18,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 18:59:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:19,082 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 18:59:19,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568507603] [2020-09-24 18:59:19,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:19,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:59:19,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26847216] [2020-09-24 18:59:19,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:59:19,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:59:19,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:59:19,117 INFO L87 Difference]: Start difference. First operand 1198 states. Second operand 8 states. [2020-09-24 18:59:20,349 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-24 18:59:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:37,002 INFO L93 Difference]: Finished difference Result 4149 states and 4970 transitions. [2020-09-24 18:59:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 18:59:37,005 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2020-09-24 18:59:37,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:37,064 INFO L225 Difference]: With dead ends: 4149 [2020-09-24 18:59:37,064 INFO L226 Difference]: Without dead ends: 3104 [2020-09-24 18:59:37,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-09-24 18:59:37,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2020-09-24 18:59:37,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 1994. [2020-09-24 18:59:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-09-24 18:59:37,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2196 transitions. [2020-09-24 18:59:37,514 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2196 transitions. Word has length 230 [2020-09-24 18:59:37,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:37,520 INFO L479 AbstractCegarLoop]: Abstraction has 1994 states and 2196 transitions. [2020-09-24 18:59:37,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:59:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2196 transitions. [2020-09-24 18:59:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-24 18:59:37,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:37,538 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] [2020-09-24 18:59:37,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:59:37,539 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:37,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:37,539 INFO L82 PathProgramCache]: Analyzing trace with hash -541143658, now seen corresponding path program 1 times [2020-09-24 18:59:37,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:37,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383059103] [2020-09-24 18:59:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:37,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:38,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:39,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:42,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:42,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-24 18:59:42,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:59:42,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 18:59:42,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:59:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 18:59:42,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:59:42,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:43,185 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-24 18:59:43,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:43,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 18:59:43,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:43,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-24 18:59:43,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:43,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:43,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:43,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:43,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:43,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:59:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:43,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:59:43,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 18:59:43,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:43,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:59:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:43,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:59:43,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:43,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:59:43,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:43,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:43,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 18:59:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:43,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 18:59:43,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 18:59:43,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:43,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:43,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:43,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:59:43,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:43,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 18:59:43,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:43,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:43,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:43,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 18:59:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:59:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:59:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 18:59:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:43,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 18:59:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:43,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:43,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:59:43,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:43,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 18:59:43,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:59:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 18:59:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:59:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:43,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-24 18:59:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:43,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:44,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:44,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-24 18:59:44,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 18:59:44,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-24 18:59:44,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:44,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:44,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:44,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:44,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:44,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 18:59:44,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:44,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 18:59:44,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:44,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:44,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:44,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 18:59:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:44,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:44,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:44,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:59:44,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:44,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 18:59:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:44,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:44,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 18:59:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:44,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:44,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 18:59:44,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:44,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 18:59:44,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:44,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:44,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:44,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:44,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:44,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:59:44,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:44,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 18:59:44,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:44,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:59:44,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-09-24 18:59:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:44,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:44,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:44,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:59:44,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:44,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 18:59:44,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 18:59:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:44,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-24 18:59:44,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383059103] [2020-09-24 18:59:44,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:44,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:59:44,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971624137] [2020-09-24 18:59:44,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:59:44,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:44,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:59:44,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:59:44,500 INFO L87 Difference]: Start difference. First operand 1994 states and 2196 transitions. Second operand 10 states. [2020-09-24 18:59:46,091 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-24 18:59:46,493 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-24 18:59:56,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:56,308 INFO L93 Difference]: Finished difference Result 4671 states and 5330 transitions. [2020-09-24 18:59:56,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:59:56,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-09-24 18:59:56,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:56,338 INFO L225 Difference]: With dead ends: 4671 [2020-09-24 18:59:56,338 INFO L226 Difference]: Without dead ends: 2828 [2020-09-24 18:59:56,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:59:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2020-09-24 18:59:56,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 1995. [2020-09-24 18:59:56,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2020-09-24 18:59:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2197 transitions. [2020-09-24 18:59:56,516 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2197 transitions. Word has length 276 [2020-09-24 18:59:56,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:56,517 INFO L479 AbstractCegarLoop]: Abstraction has 1995 states and 2197 transitions. [2020-09-24 18:59:56,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:59:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2197 transitions. [2020-09-24 18:59:56,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-09-24 18:59:56,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:56,525 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] [2020-09-24 18:59:56,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:59:56,525 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:56,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:56,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1284376602, now seen corresponding path program 1 times [2020-09-24 18:59:56,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:56,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80350812] [2020-09-24 18:59:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:57,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking...