/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 --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=1000 --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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 13:07:58,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 13:07:58,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 13:07:58,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 13:07:58,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 13:07:58,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 13:07:58,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 13:07:58,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 13:07:58,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 13:07:58,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 13:07:58,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 13:07:58,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 13:07:58,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 13:07:58,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 13:07:58,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 13:07:58,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 13:07:58,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 13:07:58,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 13:07:58,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 13:07:58,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 13:07:58,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 13:07:58,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 13:07:58,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 13:07:58,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 13:07:58,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 13:07:58,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 13:07:58,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 13:07:58,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 13:07:58,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 13:07:58,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 13:07:58,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 13:07:58,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 13:07:58,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 13:07:58,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 13:07:58,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 13:07:58,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 13:07:58,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 13:07:58,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 13:07:58,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 13:07:58,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 13:07:58,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 13:07:58,689 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 [2020-09-21 13:07:58,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 13:07:58,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 13:07:58,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 13:07:58,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 13:07:58,741 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 13:07:58,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 13:07:58,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 13:07:58,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 13:07:58,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 13:07:58,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 13:07:58,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 13:07:58,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 13:07:58,744 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 13:07:58,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 13:07:58,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 13:07:58,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 13:07:58,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 13:07:58,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 13:07:58,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 13:07:58,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 13:07:58,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 13:07:58,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 13:07:58,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 13:07:58,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 13:07:58,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 13:07:58,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 13:07:58,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-21 13:07:58,748 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.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=1000;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=1000;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=1000;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=1000;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 13:07:59,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 13:07:59,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 13:07:59,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 13:07:59,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 13:07:59,386 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 13:07:59,388 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 13:07:59,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f80753561/d2800b5a689b482aa5d32d7bee7ba3cb/FLAG03bc0f57f [2020-09-21 13:08:00,303 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 13:08:00,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 13:08:00,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f80753561/d2800b5a689b482aa5d32d7bee7ba3cb/FLAG03bc0f57f [2020-09-21 13:08:00,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f80753561/d2800b5a689b482aa5d32d7bee7ba3cb [2020-09-21 13:08:00,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 13:08:00,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 13:08:00,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 13:08:00,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 13:08:00,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 13:08:00,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 01:08:00" (1/1) ... [2020-09-21 13:08:00,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ea2dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:00, skipping insertion in model container [2020-09-21 13:08:00,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 01:08:00" (1/1) ... [2020-09-21 13:08:00,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 13:08:01,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 13:08:02,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 13:08:02,625 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 13:08:02,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 13:08:03,061 INFO L208 MainTranslator]: Completed translation [2020-09-21 13:08:03,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03 WrapperNode [2020-09-21 13:08:03,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 13:08:03,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 13:08:03,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 13:08:03,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 13:08:03,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (1/1) ... [2020-09-21 13:08:03,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (1/1) ... [2020-09-21 13:08:03,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (1/1) ... [2020-09-21 13:08:03,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (1/1) ... [2020-09-21 13:08:03,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (1/1) ... [2020-09-21 13:08:03,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (1/1) ... [2020-09-21 13:08:03,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (1/1) ... [2020-09-21 13:08:03,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 13:08:03,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 13:08:03,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 13:08:03,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 13:08:03,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (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 [2020-09-21 13:08:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 13:08:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 13:08:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-21 13:08:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-21 13:08:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-21 13:08:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-21 13:08:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-21 13:08:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-21 13:08:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-21 13:08:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-21 13:08:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-21 13:08:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-21 13:08:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 13:08:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-21 13:08:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-21 13:08:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-21 13:08:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-21 13:08:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-21 13:08:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-21 13:08:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-21 13:08:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-21 13:08:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-21 13:08:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-21 13:08:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-21 13:08:03,482 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-21 13:08:03,482 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-21 13:08:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-21 13:08:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-21 13:08:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-21 13:08:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-21 13:08:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-21 13:08:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-21 13:08:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-21 13:08:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-21 13:08:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-21 13:08:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-21 13:08:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-21 13:08:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-21 13:08:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 13:08:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-21 13:08:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-21 13:08:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-21 13:08:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-21 13:08:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-21 13:08:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-21 13:08:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-21 13:08:03,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-21 13:08:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-21 13:08:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-21 13:08:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-21 13:08:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-21 13:08:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-21 13:08:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-21 13:08:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-21 13:08:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-21 13:08:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-21 13:08:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-21 13:08:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-21 13:08:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-21 13:08:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-21 13:08:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-21 13:08:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-21 13:08:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-21 13:08:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-21 13:08:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-21 13:08:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-21 13:08:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-21 13:08:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-21 13:08:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-21 13:08:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 13:08:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-21 13:08:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 13:08:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-21 13:08:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 13:08:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-21 13:08:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-21 13:08:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-21 13:08:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-21 13:08:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-21 13:08:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-21 13:08:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-21 13:08:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-21 13:08:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-21 13:08:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-21 13:08:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-21 13:08:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-21 13:08:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-21 13:08:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-21 13:08:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-21 13:08:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 13:08:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-21 13:08:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-21 13:08:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-21 13:08:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-21 13:08:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-21 13:08:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 13:08:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 13:08:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 13:08:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 13:08:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 13:08:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 13:08:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 13:08:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 13:08:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-21 13:08:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-21 13:08:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-21 13:08:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-21 13:08:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-21 13:08:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-21 13:08:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-21 13:08:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-21 13:08:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-21 13:08:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-21 13:08:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-21 13:08:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-21 13:08:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-21 13:08:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-21 13:08:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-21 13:08:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-21 13:08:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-21 13:08:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-21 13:08:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-21 13:08:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-21 13:08:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-21 13:08:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-21 13:08:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-21 13:08:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-21 13:08:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-21 13:08:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-21 13:08:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-21 13:08:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-21 13:08:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-21 13:08:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-21 13:08:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-21 13:08:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-21 13:08:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-21 13:08:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-21 13:08:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 13:08:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 13:08:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 13:08:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 13:08:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 13:08:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 13:08:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-21 13:08:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-21 13:08:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-21 13:08:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-21 13:08:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-21 13:08:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 13:08:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-21 13:08:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-21 13:08:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-21 13:08:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-21 13:08:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-21 13:08:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-21 13:08:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-21 13:08:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-21 13:08:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-21 13:08:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-21 13:08:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 13:08:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 13:08:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 13:08:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 13:08:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-21 13:08:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-21 13:08:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-21 13:08:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-21 13:08:04,499 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-21 13:08:04,505 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-21 13:08:07,794 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 13:08:07,794 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 13:08:07,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 01:08:07 BoogieIcfgContainer [2020-09-21 13:08:07,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 13:08:07,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 13:08:07,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 13:08:07,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 13:08:07,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 01:08:00" (1/3) ... [2020-09-21 13:08:07,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195da96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 01:08:07, skipping insertion in model container [2020-09-21 13:08:07,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:08:03" (2/3) ... [2020-09-21 13:08:07,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195da96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 01:08:07, skipping insertion in model container [2020-09-21 13:08:07,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 01:08:07" (3/3) ... [2020-09-21 13:08:07,814 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 13:08:07,827 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 13:08:07,842 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 13:08:07,864 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 13:08:07,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 13:08:07,901 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 13:08:07,901 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 13:08:07,901 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 13:08:07,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 13:08:07,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 13:08:07,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 13:08:07,902 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 13:08:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states. [2020-09-21 13:08:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 13:08:07,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:08:07,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:08:07,952 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:08:07,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:08:07,961 INFO L82 PathProgramCache]: Analyzing trace with hash 915174829, now seen corresponding path program 1 times [2020-09-21 13:08:07,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:08:07,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363179020] [2020-09-21 13:08:07,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:08:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:08,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:09,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:09,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:09,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 13:08:09,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:08:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1190 [2020-09-21 13:08:09,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:09,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 13:08:09,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 13:08:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-21 13:08:11,926 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-21 13:08:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:08:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:12,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:12,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:08:12,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:12,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-21 13:08:12,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:08:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:08:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:12,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:08:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:12,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:12,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:12,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 13:08:12,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 13:08:12,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:08:12,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:12,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:08:12,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:08:12,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 13:08:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:12,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:12,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:12,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:08:12,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:12,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 13:08:12,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:08:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 13:08:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:08:12,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:08:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 13:08:12,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363179020] [2020-09-21 13:08:12,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:08:12,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 13:08:12,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641490653] [2020-09-21 13:08:12,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 13:08:12,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:08:12,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 13:08:12,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 13:08:12,717 INFO L87 Difference]: Start difference. First operand 599 states. Second operand 5 states. [2020-09-21 13:08:16,407 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-21 13:08:29,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:08:29,779 INFO L93 Difference]: Finished difference Result 1404 states and 2054 transitions. [2020-09-21 13:08:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 13:08:29,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-09-21 13:08:29,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:08:29,810 INFO L225 Difference]: With dead ends: 1404 [2020-09-21 13:08:29,810 INFO L226 Difference]: Without dead ends: 854 [2020-09-21 13:08:29,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 13:08:29,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-09-21 13:08:30,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 590. [2020-09-21 13:08:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-09-21 13:08:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 814 transitions. [2020-09-21 13:08:30,048 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 814 transitions. Word has length 26 [2020-09-21 13:08:30,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:08:30,049 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 814 transitions. [2020-09-21 13:08:30,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 13:08:30,049 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 814 transitions. [2020-09-21 13:08:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-21 13:08:30,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:08:30,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:08:30,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 13:08:30,053 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:08:30,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:08:30,053 INFO L82 PathProgramCache]: Analyzing trace with hash 568046743, now seen corresponding path program 1 times [2020-09-21 13:08:30,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:08:30,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840826329] [2020-09-21 13:08:30,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:08:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:30,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:31,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:31,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 13:08:31,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:31,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1417 [2020-09-21 13:08:31,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 13:08:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:08:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 13:08:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:33,591 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-21 13:08:33,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:08:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:33,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:34,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:34,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:08:34,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:34,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 715 [2020-09-21 13:08:34,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:34,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:34,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 13:08:34,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:34,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:08:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:34,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:34,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:34,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 13:08:34,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:34,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 13:08:34,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:08:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 13:08:34,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:34,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:08:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:34,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:34,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:34,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:35,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:35,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 13:08:35,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 13:08:35,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-09-21 13:08:35,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 13:08:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 13:08:35,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:08:35,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:08:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:35,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:35,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:08:35,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:08:35,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-21 13:08:35,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 13:08:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 13:08:35,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 13:08:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 13:08:35,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840826329] [2020-09-21 13:08:35,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:08:35,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 13:08:35,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243624067] [2020-09-21 13:08:35,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 13:08:35,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:08:35,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 13:08:35,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 13:08:35,825 INFO L87 Difference]: Start difference. First operand 590 states and 814 transitions. Second operand 7 states. [2020-09-21 13:08:37,742 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 517 [2020-09-21 13:08:40,398 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 519 [2020-09-21 13:08:52,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:08:52,666 INFO L93 Difference]: Finished difference Result 1298 states and 1814 transitions. [2020-09-21 13:08:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 13:08:52,667 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-21 13:08:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:08:52,680 INFO L225 Difference]: With dead ends: 1298 [2020-09-21 13:08:52,680 INFO L226 Difference]: Without dead ends: 718 [2020-09-21 13:08:52,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 13:08:52,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-09-21 13:08:52,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 592. [2020-09-21 13:08:52,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 13:08:52,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 814 transitions. [2020-09-21 13:08:52,839 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 814 transitions. Word has length 38 [2020-09-21 13:08:52,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:08:52,839 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 814 transitions. [2020-09-21 13:08:52,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 13:08:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 814 transitions. [2020-09-21 13:08:52,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 13:08:52,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:08:52,841 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 13:08:52,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 13:08:52,842 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:08:52,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:08:52,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1713732304, now seen corresponding path program 1 times [2020-09-21 13:08:52,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:08:52,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409113282] [2020-09-21 13:08:52,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:08:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:08:53,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:53,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:53,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:08:54,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:08:54,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 13:08:54,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 13:08:54,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-21 13:08:54,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:08:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:08:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-21 13:08:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 13:08:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0