/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:31:15,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:31:15,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:31:15,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:31:15,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:31:15,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:31:15,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:31:15,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:31:15,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:31:15,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:31:15,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:31:15,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:31:15,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:31:15,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:31:15,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:31:15,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:31:15,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:31:15,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:31:15,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:31:15,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:31:15,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:31:15,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:31:15,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:31:15,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:31:15,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:31:15,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:31:15,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:31:15,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:31:15,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:31:15,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:31:15,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:31:15,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:31:15,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:31:15,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:31:15,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:31:15,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:31:15,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:31:15,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:31:15,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:31:15,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:31:15,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:31:15,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 17:31:15,208 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:31:15,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:31:15,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:31:15,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:31:15,213 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:31:15,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:31:15,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:31:15,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:31:15,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:31:15,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:31:15,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:31:15,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:31:15,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:31:15,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:31:15,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:31:15,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:31:15,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:31:15,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:31:15,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:31:15,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:31:15,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:31:15,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:31:15,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:31:15,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:31:15,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:31:15,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:31:15,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:31:15,216 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:31:15,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:31:15,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:31:15,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:31:15,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:31:15,537 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:31:15,538 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2020-10-13 17:31:15,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c96628fee/23bec27326ac4838b41e8ab7ca137784/FLAG03de885df [2020-10-13 17:31:16,313 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:31:16,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2020-10-13 17:31:16,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c96628fee/23bec27326ac4838b41e8ab7ca137784/FLAG03de885df [2020-10-13 17:31:16,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c96628fee/23bec27326ac4838b41e8ab7ca137784 [2020-10-13 17:31:16,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:31:16,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:31:16,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:31:16,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:31:16,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:31:16,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:31:16" (1/1) ... [2020-10-13 17:31:16,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6668710e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:16, skipping insertion in model container [2020-10-13 17:31:16,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:31:16" (1/1) ... [2020-10-13 17:31:16,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:31:16,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:31:17,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:31:17,808 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:31:17,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:31:18,187 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:31:18,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18 WrapperNode [2020-10-13 17:31:18,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:31:18,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:31:18,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:31:18,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:31:18,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... [2020-10-13 17:31:18,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... [2020-10-13 17:31:18,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... [2020-10-13 17:31:18,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... [2020-10-13 17:31:18,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... [2020-10-13 17:31:18,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... [2020-10-13 17:31:18,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... [2020-10-13 17:31:18,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:31:18,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:31:18,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:31:18,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:31:18,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:31:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:31:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:31:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-13 17:31:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-10-13 17:31:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:31:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 17:31:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:31:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:31:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:31:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 17:31:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure static_init [2020-10-13 17:31:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_make_resource [2020-10-13 17:31:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure static_find_io [2020-10-13 17:31:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_6 [2020-10-13 17:31:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_7 [2020-10-13 17:31:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-13 17:31:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-13 17:31:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-13 17:31:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-13 17:31:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-13 17:31:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-13 17:31:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-13 17:31:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-10-13 17:31:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2020-10-13 17:31:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-10-13 17:31:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-13 17:31:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-13 17:31:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_region [2020-10-13 17:31:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure free_region [2020-10-13 17:31:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure add_interval [2020-10-13 17:31:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sub_interval [2020-10-13 17:31:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure readable [2020-10-13 17:31:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure checksum [2020-10-13 17:31:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure do_validate_mem [2020-10-13 17:31:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure do_mem_probe [2020-10-13 17:31:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_mem [2020-10-13 17:31:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_nonstatic_validate_mem [2020-10-13 17:31:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_common_align [2020-10-13 17:31:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_align [2020-10-13 17:31:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_adjust_io_region [2020-10-13 17:31:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_find_io_region [2020-10-13 17:31:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_io [2020-10-13 17:31:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_mem_region [2020-10-13 17:31:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_memory [2020-10-13 17:31:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_io [2020-10-13 17:31:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_autoadd_resources [2020-10-13 17:31:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_init [2020-10-13 17:31:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_release_resource_db [2020-10-13 17:31:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure show_io_db [2020-10-13 17:31:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure store_io_db [2020-10-13 17:31:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mem_db [2020-10-13 17:31:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure store_mem_db [2020-10-13 17:31:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_add_rsrc [2020-10-13 17:31:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_remove_rsrc [2020-10-13 17:31:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_sysfs_init [2020-10-13 17:31:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_sysfs_exit [2020-10-13 17:31:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:31:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2020-10-13 17:31:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2020-10-13 17:31:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2020-10-13 17:31:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_18 [2020-10-13 17:31:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2020-10-13 17:31:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2020-10-13 17:31:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2020-10-13 17:31:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2020-10-13 17:31:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_23 [2020-10-13 17:31:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_24 [2020-10-13 17:31:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_25 [2020-10-13 17:31:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_26 [2020-10-13 17:31:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_27 [2020-10-13 17:31:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_28 [2020-10-13 17:31:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_29 [2020-10-13 17:31:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_30 [2020-10-13 17:31:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_31 [2020-10-13 17:31:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:31:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:31:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:31:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:31:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:31:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 17:31:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 17:31:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:31:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 17:31:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 17:31:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:31:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:31:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:31:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:31:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:31:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:31:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:31:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:31:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:31:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-13 17:31:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_resource [2020-10-13 17:31:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_resource [2020-10-13 17:31:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure class_interface_register [2020-10-13 17:31:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure class_interface_unregister [2020-10-13 17:31:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 17:31:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2020-10-13 17:31:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-10-13 17:31:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-10-13 17:31:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pccard_static_ops_release_6 [2020-10-13 17:31:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pccard_static_ops_release_7 [2020-10-13 17:31:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pccard_static_ops_setup_6 [2020-10-13 17:31:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pccard_static_ops_setup_7 [2020-10-13 17:31:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 17:31:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 17:31:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:31:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_alloc_resource [2020-10-13 17:31:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_parent_resource [2020-10-13 17:31:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:31:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2020-10-13 17:31:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure request_resource [2020-10-13 17:31:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2020-10-13 17:31:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2020-10-13 17:31:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:31:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:31:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 17:31:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-13 17:31:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:31:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-13 17:31:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-13 17:31:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-13 17:31:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 17:31:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-13 17:31:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-13 17:31:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-13 17:31:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 17:31:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 17:31:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:31:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:31:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:31:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:31:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:31:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:31:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:31:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 17:31:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:31:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:31:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:31:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:31:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 17:31:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 17:31:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure static_init [2020-10-13 17:31:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_make_resource [2020-10-13 17:31:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:31:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:31:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure static_find_io [2020-10-13 17:31:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:31:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pccard_static_ops_setup_6 [2020-10-13 17:31:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pccard_static_ops_release_7 [2020-10-13 17:31:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pccard_static_ops_setup_7 [2020-10-13 17:31:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pccard_static_ops_release_6 [2020-10-13 17:31:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_6 [2020-10-13 17:31:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_7 [2020-10-13 17:31:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:31:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:31:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-13 17:31:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 17:31:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-13 17:31:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_18 [2020-10-13 17:31:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_25 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_27 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_29 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_31 [2020-10-13 17:31:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2020-10-13 17:31:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2020-10-13 17:31:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2020-10-13 17:31:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_23 [2020-10-13 17:31:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_24 [2020-10-13 17:31:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_26 [2020-10-13 17:31:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_28 [2020-10-13 17:31:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_30 [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure request_resource [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_resource [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_resource [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-10-13 17:31:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2020-10-13 17:31:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-10-13 17:31:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-10-13 17:31:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-10-13 17:31:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2020-10-13 17:31:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2020-10-13 17:31:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-13 17:31:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:31:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:31:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure class_interface_register [2020-10-13 17:31:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure class_interface_unregister [2020-10-13 17:31:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-13 17:31:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 17:31:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2020-10-13 17:31:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_parent_resource [2020-10-13 17:31:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_alloc_resource [2020-10-13 17:31:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure claim_region [2020-10-13 17:31:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure free_region [2020-10-13 17:31:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure add_interval [2020-10-13 17:31:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:31:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure sub_interval [2020-10-13 17:31:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure readable [2020-10-13 17:31:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-13 17:31:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:31:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure checksum [2020-10-13 17:31:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure do_validate_mem [2020-10-13 17:31:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-10-13 17:31:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure do_mem_probe [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure validate_mem [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_nonstatic_validate_mem [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_common_align [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_align [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_adjust_io_region [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_find_io_region [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_io [2020-10-13 17:31:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_mem_region [2020-10-13 17:31:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_memory [2020-10-13 17:31:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_io [2020-10-13 17:31:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_autoadd_resources [2020-10-13 17:31:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_init [2020-10-13 17:31:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_release_resource_db [2020-10-13 17:31:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure show_io_db [2020-10-13 17:31:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure store_io_db [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure show_mem_db [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure store_mem_db [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_add_rsrc [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_remove_rsrc [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_sysfs_init [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_sysfs_exit [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:31:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:31:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:31:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:31:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:31:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:31:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:31:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:31:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 17:31:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:31:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 17:31:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:31:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:31:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:31:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:31:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_ops_mutex_of_pcmcia_socket [2020-10-13 17:31:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:31:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:31:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:31:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:31:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:31:21,248 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:31:21,249 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 17:31:21,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:31:21 BoogieIcfgContainer [2020-10-13 17:31:21,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:31:21,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:31:21,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:31:21,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:31:21,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:31:16" (1/3) ... [2020-10-13 17:31:21,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303855ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:31:21, skipping insertion in model container [2020-10-13 17:31:21,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:31:18" (2/3) ... [2020-10-13 17:31:21,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303855ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:31:21, skipping insertion in model container [2020-10-13 17:31:21,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:31:21" (3/3) ... [2020-10-13 17:31:21,270 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2020-10-13 17:31:21,281 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:31:21,290 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:31:21,304 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:31:21,331 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:31:21,331 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:31:21,332 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:31:21,332 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:31:21,332 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:31:21,332 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:31:21,332 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:31:21,332 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:31:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states. [2020-10-13 17:31:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 17:31:21,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:31:21,387 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] [2020-10-13 17:31:21,387 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:31:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:31:21,394 INFO L82 PathProgramCache]: Analyzing trace with hash -919920196, now seen corresponding path program 1 times [2020-10-13 17:31:21,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:31:21,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229359178] [2020-10-13 17:31:21,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:31:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:22,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:23,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:23,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 17:31:23,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:31:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1180 [2020-10-13 17:31:23,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:31:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:31:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:31:24,622 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:31:24,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:31:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:24,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:24,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:24,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:24,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:24,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 17:31:24,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:24,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:24,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:31:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:24,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:24,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:24,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:24,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:24,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:31:24,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:24,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:24,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:31:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 17:31:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:24,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:24,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:24,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 17:31:24,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:24,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:31:24,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:24,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:24,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 17:31:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:24,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:24,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:31:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:24,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:24,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:24,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:24,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:31:24,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:31:25,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:31:25,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229359178] [2020-10-13 17:31:25,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:31:25,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:31:25,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700268087] [2020-10-13 17:31:25,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:31:25,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:31:25,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:31:25,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:31:25,113 INFO L87 Difference]: Start difference. First operand 974 states. Second operand 5 states. [2020-10-13 17:31:26,756 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 528 [2020-10-13 17:31:51,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:31:51,598 INFO L93 Difference]: Finished difference Result 3028 states and 4530 transitions. [2020-10-13 17:31:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:31:51,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-13 17:31:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:31:51,672 INFO L225 Difference]: With dead ends: 3028 [2020-10-13 17:31:51,672 INFO L226 Difference]: Without dead ends: 2184 [2020-10-13 17:31:51,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:31:51,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2020-10-13 17:31:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 1634. [2020-10-13 17:31:52,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-10-13 17:31:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2243 transitions. [2020-10-13 17:31:52,347 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2243 transitions. Word has length 34 [2020-10-13 17:31:52,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:31:52,348 INFO L479 AbstractCegarLoop]: Abstraction has 1634 states and 2243 transitions. [2020-10-13 17:31:52,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:31:52,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2243 transitions. [2020-10-13 17:31:52,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 17:31:52,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:31:52,354 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, 1, 1] [2020-10-13 17:31:52,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:31:52,355 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:31:52,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:31:52,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1005398816, now seen corresponding path program 1 times [2020-10-13 17:31:52,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:31:52,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167392154] [2020-10-13 17:31:52,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:31:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:52,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:53,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:55,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:55,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-13 17:31:55,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:31:55,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2913 [2020-10-13 17:31:55,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:31:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:31:55,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:31:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:56,673 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:31:56,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:31:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:56,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:56,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:56,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:56,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 17:31:56,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:56,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:31:56,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:31:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:56,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:56,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:56,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:31:56,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:56,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:31:56,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:56,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:56,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:56,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:56,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:31:56,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 17:31:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:56,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:56,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:31:56,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:31:56,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 17:31:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:56,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:31:56,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:31:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:31:56,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:31:56,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:31:56,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:31:56,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:31:56,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:31:56,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:31:56,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:31:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:31:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:31:56,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:31:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:31:56,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167392154] [2020-10-13 17:31:56,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:31:56,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:31:56,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707046687] [2020-10-13 17:31:56,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:31:56,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:31:56,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:31:56,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:31:56,956 INFO L87 Difference]: Start difference. First operand 1634 states and 2243 transitions. Second operand 6 states. [2020-10-13 17:31:58,777 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 528 [2020-10-13 17:32:26,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:32:26,406 INFO L93 Difference]: Finished difference Result 6378 states and 9287 transitions. [2020-10-13 17:32:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:32:26,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-13 17:32:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:32:26,444 INFO L225 Difference]: With dead ends: 6378 [2020-10-13 17:32:26,445 INFO L226 Difference]: Without dead ends: 4755 [2020-10-13 17:32:26,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:32:26,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2020-10-13 17:32:27,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 3162. [2020-10-13 17:32:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3162 states. [2020-10-13 17:32:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 4342 transitions. [2020-10-13 17:32:27,168 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 4342 transitions. Word has length 40 [2020-10-13 17:32:27,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:32:27,168 INFO L479 AbstractCegarLoop]: Abstraction has 3162 states and 4342 transitions. [2020-10-13 17:32:27,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:32:27,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 4342 transitions. [2020-10-13 17:32:27,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-13 17:32:27,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:32:27,171 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] [2020-10-13 17:32:27,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:32:27,171 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:32:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:32:27,172 INFO L82 PathProgramCache]: Analyzing trace with hash -506058925, now seen corresponding path program 1 times [2020-10-13 17:32:27,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:32:27,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096556188] [2020-10-13 17:32:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:32:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:27,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:27,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:27,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:29,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:29,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 17:32:29,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:32:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2111 [2020-10-13 17:32:29,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:32:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:32:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:32:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:30,521 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:32:30,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:32:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:30,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:30,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:30,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:32:30,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:30,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 17:32:30,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:30,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:30,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:30,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:30,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:32:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:30,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:30,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:30,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:32:30,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:30,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:32:30,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:30,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:32:30,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 17:32:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:30,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:30,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:32:30,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:30,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:32:30,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:30,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:30,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 17:32:30,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:30,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:32:30,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:32:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:32:30,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:32:30,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:32:30,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:32:30,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:32:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:32:30,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:32:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:32:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:32:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:32:30,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:32:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:32:30,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096556188] [2020-10-13 17:32:30,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:32:30,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:32:30,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776424124] [2020-10-13 17:32:30,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:32:30,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:32:30,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:32:30,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:32:30,756 INFO L87 Difference]: Start difference. First operand 3162 states and 4342 transitions. Second operand 6 states. [2020-10-13 17:32:32,684 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 528 [2020-10-13 17:33:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:33:01,117 INFO L93 Difference]: Finished difference Result 12410 states and 18060 transitions. [2020-10-13 17:33:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:33:01,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-10-13 17:33:01,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:33:01,177 INFO L225 Difference]: With dead ends: 12410 [2020-10-13 17:33:01,177 INFO L226 Difference]: Without dead ends: 9259 [2020-10-13 17:33:01,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:33:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2020-10-13 17:33:02,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 6144. [2020-10-13 17:33:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6144 states. [2020-10-13 17:33:02,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6144 states to 6144 states and 8430 transitions. [2020-10-13 17:33:02,912 INFO L78 Accepts]: Start accepts. Automaton has 6144 states and 8430 transitions. Word has length 38 [2020-10-13 17:33:02,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:33:02,913 INFO L479 AbstractCegarLoop]: Abstraction has 6144 states and 8430 transitions. [2020-10-13 17:33:02,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:33:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6144 states and 8430 transitions. [2020-10-13 17:33:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-13 17:33:02,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:33:02,915 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] [2020-10-13 17:33:02,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:33:02,916 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:33:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:33:02,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1835604118, now seen corresponding path program 1 times [2020-10-13 17:33:02,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:33:02,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367785167] [2020-10-13 17:33:02,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:33:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:03,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:03,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 17:33:03,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-13 17:33:03,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:33:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 17:33:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:04,769 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:33:04,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:33:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:04,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:04,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:04,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:04,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:04,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 17:33:04,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:04,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:04,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:04,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:04,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:04,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:04,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:04,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:33:04,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:33:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:33:04,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 17:33:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:04,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:04,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:04,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:33:04,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:04,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:33:04,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:04,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:33:04,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:04,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:04,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:04,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:04,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:33:04,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:33:04,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367785167] [2020-10-13 17:33:04,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:33:04,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:33:04,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897818497] [2020-10-13 17:33:04,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:33:04,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:33:04,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:33:04,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:33:04,970 INFO L87 Difference]: Start difference. First operand 6144 states and 8430 transitions. Second operand 5 states. [2020-10-13 17:33:06,668 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 528 [2020-10-13 17:33:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:33:20,124 INFO L93 Difference]: Finished difference Result 8314 states and 11979 transitions. [2020-10-13 17:33:20,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:33:20,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-10-13 17:33:20,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:33:20,191 INFO L225 Difference]: With dead ends: 8314 [2020-10-13 17:33:20,191 INFO L226 Difference]: Without dead ends: 8311 [2020-10-13 17:33:20,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:33:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8311 states. [2020-10-13 17:33:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8311 to 6143. [2020-10-13 17:33:21,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6143 states. [2020-10-13 17:33:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 8428 transitions. [2020-10-13 17:33:21,607 INFO L78 Accepts]: Start accepts. Automaton has 6143 states and 8428 transitions. Word has length 38 [2020-10-13 17:33:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:33:21,607 INFO L479 AbstractCegarLoop]: Abstraction has 6143 states and 8428 transitions. [2020-10-13 17:33:21,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:33:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6143 states and 8428 transitions. [2020-10-13 17:33:21,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-13 17:33:21,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:33:21,613 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, 1] [2020-10-13 17:33:21,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:33:21,614 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:33:21,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:33:21,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1069668033, now seen corresponding path program 1 times [2020-10-13 17:33:21,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:33:21,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138639019] [2020-10-13 17:33:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:33:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:21,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:22,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:22,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 17:33:22,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:22,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-13 17:33:22,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:22,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:22,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:33:22,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 17:33:22,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:23,246 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:33:23,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:33:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:23,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:23,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:23,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 17:33:23,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:23,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:23,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:23,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:23,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:23,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:23,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:33:23,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:33:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:23,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 17:33:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:23,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:23,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:23,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:33:23,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:23,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:33:23,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:33:23,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:23,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:23,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:23,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:23,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:23,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:23,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:23,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:23,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:23,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:23,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:33:23,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138639019] [2020-10-13 17:33:23,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:33:23,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:33:23,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524383325] [2020-10-13 17:33:23,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:33:23,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:33:23,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:33:23,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:33:23,421 INFO L87 Difference]: Start difference. First operand 6143 states and 8428 transitions. Second operand 5 states. [2020-10-13 17:33:25,266 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 528 [2020-10-13 17:33:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:33:38,346 INFO L93 Difference]: Finished difference Result 8313 states and 11977 transitions. [2020-10-13 17:33:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:33:38,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-13 17:33:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:33:38,389 INFO L225 Difference]: With dead ends: 8313 [2020-10-13 17:33:38,389 INFO L226 Difference]: Without dead ends: 8310 [2020-10-13 17:33:38,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:33:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2020-10-13 17:33:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 6142. [2020-10-13 17:33:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6142 states. [2020-10-13 17:33:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 8426 transitions. [2020-10-13 17:33:39,742 INFO L78 Accepts]: Start accepts. Automaton has 6142 states and 8426 transitions. Word has length 39 [2020-10-13 17:33:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:33:39,743 INFO L479 AbstractCegarLoop]: Abstraction has 6142 states and 8426 transitions. [2020-10-13 17:33:39,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:33:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 6142 states and 8426 transitions. [2020-10-13 17:33:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 17:33:39,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:33:39,746 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, 1, 1] [2020-10-13 17:33:39,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:33:39,749 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:33:39,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:33:39,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1199518989, now seen corresponding path program 1 times [2020-10-13 17:33:39,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:33:39,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500413673] [2020-10-13 17:33:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:33:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:39,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:40,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:40,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-13 17:33:40,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-13 17:33:40,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:33:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 17:33:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:41,366 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:33:41,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:33:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:41,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:41,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:41,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:41,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 17:33:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:41,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:41,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:41,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:41,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:41,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:41,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:33:41,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:41,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:33:41,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:41,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 17:33:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:41,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:41,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:41,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:33:41,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:41,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:33:41,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:33:41,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:41,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:41,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:41,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:41,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:41,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:41,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:41,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:41,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:33:41,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500413673] [2020-10-13 17:33:41,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:33:41,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:33:41,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500674089] [2020-10-13 17:33:41,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:33:41,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:33:41,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:33:41,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:33:41,541 INFO L87 Difference]: Start difference. First operand 6142 states and 8426 transitions. Second operand 5 states. [2020-10-13 17:33:43,588 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 528 [2020-10-13 17:33:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:33:56,698 INFO L93 Difference]: Finished difference Result 8312 states and 11975 transitions. [2020-10-13 17:33:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:33:56,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-10-13 17:33:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:33:56,735 INFO L225 Difference]: With dead ends: 8312 [2020-10-13 17:33:56,735 INFO L226 Difference]: Without dead ends: 8309 [2020-10-13 17:33:56,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:33:56,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2020-10-13 17:33:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 6141. [2020-10-13 17:33:58,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6141 states. [2020-10-13 17:33:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6141 states to 6141 states and 8424 transitions. [2020-10-13 17:33:58,221 INFO L78 Accepts]: Start accepts. Automaton has 6141 states and 8424 transitions. Word has length 40 [2020-10-13 17:33:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:33:58,221 INFO L479 AbstractCegarLoop]: Abstraction has 6141 states and 8424 transitions. [2020-10-13 17:33:58,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:33:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand 6141 states and 8424 transitions. [2020-10-13 17:33:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 17:33:58,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:33:58,224 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, 1, 1, 1] [2020-10-13 17:33:58,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:33:58,225 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:33:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:33:58,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1470122494, now seen corresponding path program 1 times [2020-10-13 17:33:58,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:33:58,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239623244] [2020-10-13 17:33:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:33:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:58,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:58,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:58,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 17:33:58,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-13 17:33:58,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:58,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:58,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 17:33:58,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 17:33:58,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:59,815 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:33:59,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:33:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:59,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:59,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:59,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:59,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:59,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 17:33:59,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:59,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:59,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:59,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:59,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:33:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:59,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:59,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:59,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:59,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:59,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:33:59,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:59,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:33:59,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:59,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 17:33:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:59,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:59,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:59,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:33:59,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:59,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:33:59,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:59,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:33:59,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:59,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 17:33:59,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:33:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:33:59,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:33:59,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:33:59,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:33:59,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:33:59,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:33:59,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:33:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:33:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:33:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:33:59,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:33:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:33:59,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239623244] [2020-10-13 17:33:59,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:33:59,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:33:59,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121848846] [2020-10-13 17:33:59,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:33:59,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:33:59,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:33:59,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:33:59,978 INFO L87 Difference]: Start difference. First operand 6141 states and 8424 transitions. Second operand 5 states. [2020-10-13 17:34:01,677 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 528 [2020-10-13 17:34:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:34:21,459 INFO L93 Difference]: Finished difference Result 15939 states and 22522 transitions. [2020-10-13 17:34:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:34:21,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-10-13 17:34:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:34:21,501 INFO L225 Difference]: With dead ends: 15939 [2020-10-13 17:34:21,502 INFO L226 Difference]: Without dead ends: 9796 [2020-10-13 17:34:21,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:34:21,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9796 states. [2020-10-13 17:34:22,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9796 to 3828. [2020-10-13 17:34:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3828 states. [2020-10-13 17:34:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3828 states to 3828 states and 5204 transitions. [2020-10-13 17:34:22,930 INFO L78 Accepts]: Start accepts. Automaton has 3828 states and 5204 transitions. Word has length 41 [2020-10-13 17:34:22,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:34:22,931 INFO L479 AbstractCegarLoop]: Abstraction has 3828 states and 5204 transitions. [2020-10-13 17:34:22,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:34:22,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3828 states and 5204 transitions. [2020-10-13 17:34:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 17:34:22,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:34:22,939 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 17:34:22,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 17:34:22,939 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:34:22,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:34:22,940 INFO L82 PathProgramCache]: Analyzing trace with hash -273817074, now seen corresponding path program 1 times [2020-10-13 17:34:22,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:34:22,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328700517] [2020-10-13 17:34:22,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:34:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:23,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:24,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:24,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 17:34:24,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:24,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1091 [2020-10-13 17:34:24,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:34:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 17:34:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 17:34:24,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,436 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:34:25,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:34:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:34:25,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 17:34:25,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:25,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:34:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:34:25,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:34:25,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:25,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 17:34:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:34:25,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:34:25,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:25,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:34:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:34:25,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:34:25,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 17:34:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:34:25,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:34:25,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:25,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:34:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:34:25,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:34:25,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:25,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 17:34:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 17:34:25,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:34:25,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:34:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:34:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:34:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:34:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:34:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:34:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:34:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 17:34:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:25,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:25,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:25,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:34:25,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:34:25,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:34:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:34:25,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 17:34:25,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328700517] [2020-10-13 17:34:25,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:34:25,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:34:25,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107464581] [2020-10-13 17:34:25,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:34:25,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:34:25,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:34:25,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:34:25,843 INFO L87 Difference]: Start difference. First operand 3828 states and 5204 transitions. Second operand 7 states. [2020-10-13 17:34:33,467 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 529 [2020-10-13 17:34:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:34:47,900 INFO L93 Difference]: Finished difference Result 6199 states and 8915 transitions. [2020-10-13 17:34:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 17:34:47,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-13 17:34:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:34:47,920 INFO L225 Difference]: With dead ends: 6199 [2020-10-13 17:34:47,921 INFO L226 Difference]: Without dead ends: 5501 [2020-10-13 17:34:47,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:34:47,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5501 states. [2020-10-13 17:34:49,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5501 to 3706. [2020-10-13 17:34:49,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3706 states. [2020-10-13 17:34:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 5010 transitions. [2020-10-13 17:34:49,189 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 5010 transitions. Word has length 78 [2020-10-13 17:34:49,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:34:49,190 INFO L479 AbstractCegarLoop]: Abstraction has 3706 states and 5010 transitions. [2020-10-13 17:34:49,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:34:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 5010 transitions. [2020-10-13 17:34:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 17:34:49,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:34:49,203 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 17:34:49,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 17:34:49,204 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:34:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:34:49,204 INFO L82 PathProgramCache]: Analyzing trace with hash 779573254, now seen corresponding path program 1 times [2020-10-13 17:34:49,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:34:49,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504041096] [2020-10-13 17:34:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:34:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:49,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:49,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:49,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:52,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:52,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:52,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:54,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:54,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 17:34:54,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 17:34:54,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-10-13 17:34:54,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:34:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:34:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:34:54,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:55,742 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 526 [2020-10-13 17:34:55,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:34:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:55,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:55,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:55,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:34:55,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:55,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 17:34:55,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:55,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:55,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:34:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:55,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:55,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:55,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:34:55,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:55,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:34:55,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:55,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:55,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:34:55,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:55,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:34:55,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 17:34:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:34:55,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:34:55,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:34:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 17:34:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:34:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 17:34:55,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:34:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:34:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 17:34:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:34:56,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 17:34:56,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:34:56,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 17:34:56,030 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 33 more [2020-10-13 17:34:56,036 INFO L168 Benchmark]: Toolchain (without parser) took 219608.79 ms. Allocated memory was 145.2 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 98.6 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 554.4 MB. Max. memory is 7.1 GB. [2020-10-13 17:34:56,037 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 145.2 MB. Free memory was 123.0 MB in the beginning and 122.6 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-13 17:34:56,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1759.67 ms. Allocated memory was 145.2 MB in the beginning and 239.6 MB in the end (delta: 94.4 MB). Free memory was 98.1 MB in the beginning and 188.7 MB in the end (delta: -90.5 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. [2020-10-13 17:34:56,041 INFO L168 Benchmark]: Boogie Preprocessor took 238.21 ms. Allocated memory is still 239.6 MB. Free memory was 188.7 MB in the beginning and 173.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-10-13 17:34:56,043 INFO L168 Benchmark]: RCFGBuilder took 2831.16 ms. Allocated memory was 239.6 MB in the beginning and 299.4 MB in the end (delta: 59.8 MB). Free memory was 173.2 MB in the beginning and 188.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. [2020-10-13 17:34:56,051 INFO L168 Benchmark]: TraceAbstraction took 214772.13 ms. Allocated memory was 299.4 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 185.1 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 486.8 MB. Max. memory is 7.1 GB. [2020-10-13 17:34:56,056 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 145.2 MB. Free memory was 123.0 MB in the beginning and 122.6 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1759.67 ms. Allocated memory was 145.2 MB in the beginning and 239.6 MB in the end (delta: 94.4 MB). Free memory was 98.1 MB in the beginning and 188.7 MB in the end (delta: -90.5 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 238.21 ms. Allocated memory is still 239.6 MB. Free memory was 188.7 MB in the beginning and 173.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2831.16 ms. Allocated memory was 239.6 MB in the beginning and 299.4 MB in the end (delta: 59.8 MB). Free memory was 173.2 MB in the beginning and 188.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214772.13 ms. Allocated memory was 299.4 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 185.1 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 486.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...