./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 661b1c45ff8384adf65e7d483f84ec114d123dfa11d8bd8ea550046ca3938a1c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:04:30,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:04:30,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:04:30,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:04:30,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:04:30,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:04:30,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:04:30,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:04:30,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:04:30,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:04:30,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:04:30,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:04:30,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:04:30,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:04:30,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:04:30,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:04:30,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:04:30,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:04:30,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:04:30,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:04:30,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:04:30,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:04:30,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:04:30,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:04:30,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:04:30,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:04:30,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:04:30,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:04:30,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:04:30,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:04:30,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:04:30,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:04:30,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:04:30,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:04:30,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:04:30,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:04:30,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:04:30,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:04:30,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:04:30,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:04:30,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:04:30,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:04:30,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:04:30,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:04:30,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:04:30,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:04:30,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:04:30,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:04:30,673 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:04:30,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:04:30,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:04:30,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:04:30,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:04:30,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:04:30,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:04:30,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:04:30,674 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:04:30,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:04:30,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:04:30,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:04:30,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:04:30,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:04:30,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:04:30,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:04:30,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:04:30,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:04:30,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:04:30,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:04:30,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:04:30,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:04:30,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:04:30,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 661b1c45ff8384adf65e7d483f84ec114d123dfa11d8bd8ea550046ca3938a1c [2021-11-07 15:04:30,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:04:30,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:04:30,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:04:30,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:04:30,922 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:04:30,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i [2021-11-07 15:04:30,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d675307db/35e6d17f14b94147af3edc7b2e5d5fc6/FLAG633b23dd0 [2021-11-07 15:04:31,581 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:04:31,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i [2021-11-07 15:04:31,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d675307db/35e6d17f14b94147af3edc7b2e5d5fc6/FLAG633b23dd0 [2021-11-07 15:04:31,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d675307db/35e6d17f14b94147af3edc7b2e5d5fc6 [2021-11-07 15:04:31,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:04:31,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:04:31,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:04:31,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:04:31,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:04:31,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:04:31" (1/1) ... [2021-11-07 15:04:31,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de721cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:31, skipping insertion in model container [2021-11-07 15:04:31,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:04:31" (1/1) ... [2021-11-07 15:04:31,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:04:31,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:04:33,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i[318263,318276] [2021-11-07 15:04:33,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:04:33,454 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:04:33,778 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i[318263,318276] [2021-11-07 15:04:33,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:04:33,888 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:04:33,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33 WrapperNode [2021-11-07 15:04:33,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:04:33,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:04:33,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:04:33,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:04:33,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:34,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:39,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:04:39,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:04:39,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:04:39,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:04:39,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:39,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:40,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:40,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:42,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:43,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:43,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:44,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:04:44,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:04:44,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:04:44,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:04:44,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (1/1) ... [2021-11-07 15:04:44,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:04:44,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:04:44,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 15:04:44,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 15:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-07 15:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_execute_tuning [2021-11-07 15:04:44,226 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_execute_tuning [2021-11-07 15:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_hw_reset [2021-11-07 15:04:44,226 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_hw_reset [2021-11-07 15:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-07 15:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_remove_host [2021-11-07 15:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_remove_host [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 15:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_check_ro [2021-11-07 15:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_check_ro [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_prepare_data [2021-11-07 15:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_prepare_data [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_request [2021-11-07 15:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_request [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_reinit [2021-11-07 15:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_reinit [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_set_timeout [2021-11-07 15:04:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_set_timeout [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_resume_host [2021-11-07 15:04:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_resume_host [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_set_ios [2021-11-07 15:04:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_set_ios [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_card_event [2021-11-07 15:04:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_card_event [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_start_signal_voltage_switch [2021-11-07 15:04:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_start_signal_voltage_switch [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 15:04:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 15:04:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_get_ro [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_get_ro [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_send_command [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_send_command [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_get_ro [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_get_ro [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_set_ios [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_set_ios [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_runtime_resume_host [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_runtime_resume_host [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_init [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_init [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_add_host [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_add_host [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:04:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 15:04:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 15:04:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_reset [2021-11-07 15:04:44,230 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_reset [2021-11-07 15:04:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:04:44,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:06:23,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:06:23,033 INFO L299 CfgBuilder]: Removed 37055 assume(true) statements. [2021-11-07 15:06:23,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:06:23 BoogieIcfgContainer [2021-11-07 15:06:23,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:06:23,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:06:23,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:06:23,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:06:23,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:04:31" (1/3) ... [2021-11-07 15:06:23,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199261ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:06:23, skipping insertion in model container [2021-11-07 15:06:23,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:04:33" (2/3) ... [2021-11-07 15:06:23,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199261ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:06:23, skipping insertion in model container [2021-11-07 15:06:23,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:06:23" (3/3) ... [2021-11-07 15:06:23,065 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i [2021-11-07 15:06:23,068 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:06:23,069 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 15:06:23,184 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:06:23,190 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 15:06:23,190 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 15:06:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 35632 states, 35286 states have (on average 1.3648755880519186) internal successors, (48161), 35367 states have internal predecessors, (48161), 317 states have call successors, (317), 25 states have call predecessors, (317), 25 states have return successors, (317), 313 states have call predecessors, (317), 317 states have call successors, (317) [2021-11-07 15:06:23,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 15:06:23,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:23,574 INFO L514 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, 1, 1, 1] [2021-11-07 15:06:23,575 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 15:06:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1252814206, now seen corresponding path program 1 times [2021-11-07 15:06:23,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:23,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524871584] [2021-11-07 15:06:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:23,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:06:24,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:24,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524871584] [2021-11-07 15:06:24,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524871584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:24,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:24,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:06:24,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329921561] [2021-11-07 15:06:24,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:24,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:06:24,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:24,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:06:24,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:06:24,208 INFO L87 Difference]: Start difference. First operand has 35632 states, 35286 states have (on average 1.3648755880519186) internal successors, (48161), 35367 states have internal predecessors, (48161), 317 states have call successors, (317), 25 states have call predecessors, (317), 25 states have return successors, (317), 313 states have call predecessors, (317), 317 states have call successors, (317) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:25,325 INFO L93 Difference]: Finished difference Result 71245 states and 97882 transitions. [2021-11-07 15:06:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:06:25,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 15:06:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:25,480 INFO L225 Difference]: With dead ends: 71245 [2021-11-07 15:06:25,480 INFO L226 Difference]: Without dead ends: 34572 [2021-11-07 15:06:25,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:06:25,876 INFO L933 BasicCegarLoop]: 48474 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48474 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:25,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48474 Invalid, 0 Unknown, 0 Unchecked, 85.38ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:06:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34572 states. [2021-11-07 15:06:26,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34572 to 34572. [2021-11-07 15:06:26,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34572 states, 34227 states have (on average 1.3367809039647063) internal successors, (45754), 34307 states have internal predecessors, (45754), 317 states have call successors, (317), 25 states have call predecessors, (317), 25 states have return successors, (317), 313 states have call predecessors, (317), 317 states have call successors, (317) [2021-11-07 15:06:26,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34572 states to 34572 states and 46388 transitions. [2021-11-07 15:06:26,711 INFO L78 Accepts]: Start accepts. Automaton has 34572 states and 46388 transitions. Word has length 44 [2021-11-07 15:06:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:26,711 INFO L470 AbstractCegarLoop]: Abstraction has 34572 states and 46388 transitions. [2021-11-07 15:06:26,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 34572 states and 46388 transitions. [2021-11-07 15:06:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 15:06:26,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:26,721 INFO L514 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, 1, 1, 1] [2021-11-07 15:06:26,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:06:26,722 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 15:06:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash -593282684, now seen corresponding path program 1 times [2021-11-07 15:06:26,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:26,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339605800] [2021-11-07 15:06:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:26,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:26,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:06:26,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:26,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339605800] [2021-11-07 15:06:26,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339605800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:26,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:26,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:06:26,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58130810] [2021-11-07 15:06:26,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:26,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:06:26,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:26,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:06:26,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:26,968 INFO L87 Difference]: Start difference. First operand 34572 states and 46388 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:29,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:30,571 INFO L93 Difference]: Finished difference Result 103626 states and 139060 transitions. [2021-11-07 15:06:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:06:30,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 15:06:30,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:30,794 INFO L225 Difference]: With dead ends: 103626 [2021-11-07 15:06:30,795 INFO L226 Difference]: Without dead ends: 69087 [2021-11-07 15:06:30,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:30,902 INFO L933 BasicCegarLoop]: 46702 mSDtfsCounter, 46315 mSDsluCounter, 46374 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2256.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46315 SdHoareTripleChecker+Valid, 93076 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.34ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2433.68ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:30,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46315 Valid, 93076 Invalid, 15 Unknown, 0 Unchecked, 102.34ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2433.68ms Time] [2021-11-07 15:06:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69087 states. [2021-11-07 15:06:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69087 to 69087. [2021-11-07 15:06:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69087 states, 68400 states have (on average 1.336856725146199) internal successors, (91441), 68558 states have internal predecessors, (91441), 634 states have call successors, (634), 50 states have call predecessors, (634), 50 states have return successors, (634), 626 states have call predecessors, (634), 634 states have call successors, (634) [2021-11-07 15:06:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69087 states to 69087 states and 92709 transitions. [2021-11-07 15:06:32,634 INFO L78 Accepts]: Start accepts. Automaton has 69087 states and 92709 transitions. Word has length 44 [2021-11-07 15:06:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:32,635 INFO L470 AbstractCegarLoop]: Abstraction has 69087 states and 92709 transitions. [2021-11-07 15:06:32,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 69087 states and 92709 transitions. [2021-11-07 15:06:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 15:06:32,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:32,639 INFO L514 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, 1, 1, 1, 1, 1, 1] [2021-11-07 15:06:32,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:06:32,640 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 15:06:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1879124338, now seen corresponding path program 1 times [2021-11-07 15:06:32,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:32,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685393528] [2021-11-07 15:06:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:32,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:06:32,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:32,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685393528] [2021-11-07 15:06:32,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685393528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:32,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:32,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 15:06:32,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264362542] [2021-11-07 15:06:32,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:32,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 15:06:32,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:32,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 15:06:32,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 15:06:32,875 INFO L87 Difference]: Start difference. First operand 69087 states and 92709 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:36,494 INFO L93 Difference]: Finished difference Result 138140 states and 185376 transitions. [2021-11-07 15:06:36,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 15:06:36,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-07 15:06:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:36,722 INFO L225 Difference]: With dead ends: 138140 [2021-11-07 15:06:36,722 INFO L226 Difference]: Without dead ends: 69086 [2021-11-07 15:06:36,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.81ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:06:36,908 INFO L933 BasicCegarLoop]: 88200 mSDtfsCounter, 88226 mSDsluCounter, 46617 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1412.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 88226 SdHoareTripleChecker+Valid, 134817 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 158.53ms SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1536.41ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:36,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88226 Valid, 134817 Invalid, 524 Unknown, 0 Unchecked, 158.53ms Time], IncrementalHoareTripleChecker [262 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 1536.41ms Time] [2021-11-07 15:06:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69086 states. [2021-11-07 15:06:38,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69086 to 69086. [2021-11-07 15:06:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69086 states, 68399 states have (on average 1.336817789733768) internal successors, (91437), 68557 states have internal predecessors, (91437), 634 states have call successors, (634), 50 states have call predecessors, (634), 50 states have return successors, (634), 626 states have call predecessors, (634), 634 states have call successors, (634) [2021-11-07 15:06:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69086 states to 69086 states and 92705 transitions. [2021-11-07 15:06:38,585 INFO L78 Accepts]: Start accepts. Automaton has 69086 states and 92705 transitions. Word has length 47 [2021-11-07 15:06:38,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:38,586 INFO L470 AbstractCegarLoop]: Abstraction has 69086 states and 92705 transitions. [2021-11-07 15:06:38,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 69086 states and 92705 transitions. [2021-11-07 15:06:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 15:06:38,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:38,596 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 15:06:38,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:06:38,596 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 15:06:38,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:38,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1065286823, now seen corresponding path program 1 times [2021-11-07 15:06:38,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:38,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635187952] [2021-11-07 15:06:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:38,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 15:06:38,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:38,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635187952] [2021-11-07 15:06:38,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635187952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:38,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:38,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:06:38,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585568175] [2021-11-07 15:06:38,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:38,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:06:38,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:38,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:06:38,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:38,849 INFO L87 Difference]: Start difference. First operand 69086 states and 92705 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:39,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:39,997 INFO L93 Difference]: Finished difference Result 69086 states and 92705 transitions. [2021-11-07 15:06:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:06:39,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 15:06:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:40,186 INFO L225 Difference]: With dead ends: 69086 [2021-11-07 15:06:40,189 INFO L226 Difference]: Without dead ends: 69084 [2021-11-07 15:06:40,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:40,218 INFO L933 BasicCegarLoop]: 46383 mSDtfsCounter, 46324 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46324 SdHoareTripleChecker+Valid, 46383 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.69ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:40,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46324 Valid, 46383 Invalid, 1 Unknown, 0 Unchecked, 45.38ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.69ms Time] [2021-11-07 15:06:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69084 states. [2021-11-07 15:06:41,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69084 to 69084. [2021-11-07 15:06:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69084 states, 68398 states have (on average 1.3368080938039124) internal successors, (91435), 68555 states have internal predecessors, (91435), 634 states have call successors, (634), 50 states have call predecessors, (634), 50 states have return successors, (634), 626 states have call predecessors, (634), 634 states have call successors, (634) [2021-11-07 15:06:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69084 states to 69084 states and 92703 transitions. [2021-11-07 15:06:41,930 INFO L78 Accepts]: Start accepts. Automaton has 69084 states and 92703 transitions. Word has length 68 [2021-11-07 15:06:41,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:41,934 INFO L470 AbstractCegarLoop]: Abstraction has 69084 states and 92703 transitions. [2021-11-07 15:06:41,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:41,934 INFO L276 IsEmpty]: Start isEmpty. Operand 69084 states and 92703 transitions. [2021-11-07 15:06:41,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 15:06:41,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:41,944 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 15:06:41,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:06:41,945 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 15:06:41,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:41,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1335965381, now seen corresponding path program 1 times [2021-11-07 15:06:41,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:41,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311581867] [2021-11-07 15:06:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:41,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 15:06:42,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:42,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311581867] [2021-11-07 15:06:42,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311581867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:42,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:42,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:06:42,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332303235] [2021-11-07 15:06:42,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:42,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:06:42,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:42,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:06:42,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:42,225 INFO L87 Difference]: Start difference. First operand 69084 states and 92703 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:43,345 INFO L93 Difference]: Finished difference Result 69084 states and 92703 transitions. [2021-11-07 15:06:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:06:43,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-07 15:06:43,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:43,514 INFO L225 Difference]: With dead ends: 69084 [2021-11-07 15:06:43,514 INFO L226 Difference]: Without dead ends: 69082 [2021-11-07 15:06:43,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:43,550 INFO L933 BasicCegarLoop]: 46381 mSDtfsCounter, 46321 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46321 SdHoareTripleChecker+Valid, 46381 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.57ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:43,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46321 Valid, 46381 Invalid, 1 Unknown, 0 Unchecked, 47.40ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.57ms Time] [2021-11-07 15:06:43,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69082 states. [2021-11-07 15:06:45,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69082 to 69082. [2021-11-07 15:06:45,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69082 states, 68397 states have (on average 1.3367983975905375) internal successors, (91433), 68553 states have internal predecessors, (91433), 634 states have call successors, (634), 50 states have call predecessors, (634), 50 states have return successors, (634), 626 states have call predecessors, (634), 634 states have call successors, (634) [2021-11-07 15:06:45,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69082 states to 69082 states and 92701 transitions. [2021-11-07 15:06:45,300 INFO L78 Accepts]: Start accepts. Automaton has 69082 states and 92701 transitions. Word has length 69 [2021-11-07 15:06:45,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:45,300 INFO L470 AbstractCegarLoop]: Abstraction has 69082 states and 92701 transitions. [2021-11-07 15:06:45,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:45,301 INFO L276 IsEmpty]: Start isEmpty. Operand 69082 states and 92701 transitions. [2021-11-07 15:06:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 15:06:45,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:45,310 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 15:06:45,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:06:45,311 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 15:06:45,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1534627613, now seen corresponding path program 1 times [2021-11-07 15:06:45,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:45,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529449607] [2021-11-07 15:06:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:45,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 15:06:45,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:45,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529449607] [2021-11-07 15:06:45,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529449607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:45,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:45,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:06:45,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969702072] [2021-11-07 15:06:45,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:45,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:06:45,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:06:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:45,506 INFO L87 Difference]: Start difference. First operand 69082 states and 92701 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:46,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:46,709 INFO L93 Difference]: Finished difference Result 69082 states and 92701 transitions. [2021-11-07 15:06:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:06:46,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 15:06:46,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:46,712 INFO L225 Difference]: With dead ends: 69082 [2021-11-07 15:06:46,712 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 15:06:46,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:46,835 INFO L933 BasicCegarLoop]: 46380 mSDtfsCounter, 46318 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46318 SdHoareTripleChecker+Valid, 46380 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:46,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46318 Valid, 46380 Invalid, 0 Unknown, 0 Unchecked, 46.10ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:06:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 15:06:46,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 15:06:46,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 15:06:46,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-11-07 15:06:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:46,837 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 15:06:46,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 15:06:46,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 15:06:46,839 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-07 15:06:46,840 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-07 15:06:46,840 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-07 15:06:46,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:06:46,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.