./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.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 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 23:39:53,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:39:53,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:39:53,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:39:53,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:39:53,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:39:53,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:39:53,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:39:53,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:39:53,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:39:53,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:39:53,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:39:53,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:39:53,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:39:53,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:39:53,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:39:53,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:39:53,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:39:53,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:39:53,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:39:53,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:39:53,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:39:53,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:39:53,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:39:53,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:39:53,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:39:53,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:39:53,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:39:53,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:39:53,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:39:53,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:39:53,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:39:53,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:39:53,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:39:53,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:39:53,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:39:53,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:39:53,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:39:53,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:39:53,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:39:53,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:39:53,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 23:39:53,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:39:53,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:39:53,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:39:53,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:39:53,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:39:53,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:39:53,614 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:39:53,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:39:53,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:39:53,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:39:53,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:39:53,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:39:53,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:39:53,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:39:53,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:39:53,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:39:53,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:39:53,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:39:53,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:39:53,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:39:53,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:39:53,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:39:53,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:39:53,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:39:53,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:39:53,619 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:39:53,619 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 23:39:53,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:39:53,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 23:39:53,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2021-11-22 23:39:53,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:39:53,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:39:53,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:39:53,898 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:39:53,899 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:39:53,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-22 23:39:53,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f536ad94b/f6c9f48bf26540bb8479be32e1ec3639/FLAG6392834e4 [2021-11-22 23:39:54,667 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:39:54,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-22 23:39:54,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f536ad94b/f6c9f48bf26540bb8479be32e1ec3639/FLAG6392834e4 [2021-11-22 23:39:54,937 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f536ad94b/f6c9f48bf26540bb8479be32e1ec3639 [2021-11-22 23:39:54,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:39:54,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:39:54,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:39:54,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:39:54,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:39:54,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:39:54" (1/1) ... [2021-11-22 23:39:54,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268cbc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:54, skipping insertion in model container [2021-11-22 23:39:54,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:39:54" (1/1) ... [2021-11-22 23:39:54,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:39:55,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:39:55,539 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-11-22 23:39:55,540 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-11-22 23:39:55,789 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-11-22 23:39:56,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:39:56,461 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:39:56,581 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2021-11-22 23:39:56,582 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2021-11-22 23:39:56,590 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2021-11-22 23:39:56,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:39:56,842 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:39:56,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56 WrapperNode [2021-11-22 23:39:56,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:39:56,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:39:56,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:39:56,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:39:56,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:39:56,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:39:59,822 INFO L137 Inliner]: procedures = 219, calls = 1605, calls flagged for inlining = 417, calls inlined = 10719, statements flattened = 121928 [2021-11-22 23:39:59,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:39:59,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:39:59,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:39:59,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:39:59,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:39:59,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:40:00,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:40:00,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:40:02,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:40:02,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:40:02,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:40:03,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:40:03,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:40:03,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:40:03,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:40:03,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (1/1) ... [2021-11-22 23:40:03,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:40:03,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:40:03,484 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) [2021-11-22 23:40:03,502 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 [2021-11-22 23:40:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 23:40:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 23:40:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:40:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:40:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:40:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 23:40:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 23:40:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 23:40:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:40:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:40:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:40:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:40:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:40:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:40:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:40:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:40:04,115 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:40:04,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:41:17,595 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:41:17,660 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:41:17,660 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 23:41:17,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:41:17 BoogieIcfgContainer [2021-11-22 23:41:17,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:41:17,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:41:17,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:41:17,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:41:17,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:39:54" (1/3) ... [2021-11-22 23:41:17,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3774e8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:41:17, skipping insertion in model container [2021-11-22 23:41:17,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:56" (2/3) ... [2021-11-22 23:41:17,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3774e8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:41:17, skipping insertion in model container [2021-11-22 23:41:17,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:41:17" (3/3) ... [2021-11-22 23:41:17,683 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2021-11-22 23:41:17,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:41:17,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2021-11-22 23:41:17,780 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 23:41:17,785 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 [2021-11-22 23:41:17,785 INFO L340 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2021-11-22 23:41:17,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 18224 states, 18173 states have (on average 1.3178891762504814) internal successors, (23950), 18223 states have internal predecessors, (23950), 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) [2021-11-22 23:41:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 23:41:18,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:41:18,010 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] [2021-11-22 23:41:18,010 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 23:41:18,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:41:18,015 INFO L85 PathProgramCache]: Analyzing trace with hash -985199226, now seen corresponding path program 1 times [2021-11-22 23:41:18,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:41:18,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877055207] [2021-11-22 23:41:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:41:18,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:41:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:41:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:41:18,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:41:18,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877055207] [2021-11-22 23:41:18,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877055207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:41:18,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:41:18,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:41:18,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102849965] [2021-11-22 23:41:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:41:18,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:41:18,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:41:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:41:18,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 23:41:18,587 INFO L87 Difference]: Start difference. First operand has 18224 states, 18173 states have (on average 1.3178891762504814) internal successors, (23950), 18223 states have internal predecessors, (23950), 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) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-22 23:41:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:41:20,096 INFO L93 Difference]: Finished difference Result 55770 states and 73629 transitions. [2021-11-22 23:41:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:41:20,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-22 23:41:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:41:20,306 INFO L225 Difference]: With dead ends: 55770 [2021-11-22 23:41:20,306 INFO L226 Difference]: Without dead ends: 37342 [2021-11-22 23:41:20,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:41:20,382 INFO L933 BasicCegarLoop]: 30681 mSDtfsCounter, 22168 mSDsluCounter, 48117 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22168 SdHoareTripleChecker+Valid, 78798 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:41:20,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22168 Valid, 78798 Invalid, 75 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:41:20,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37342 states. [2021-11-22 23:41:21,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37342 to 20609. [2021-11-22 23:41:21,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20609 states, 20559 states have (on average 1.313585291113381) internal successors, (27006), 20608 states have internal predecessors, (27006), 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) [2021-11-22 23:41:21,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20609 states to 20609 states and 27006 transitions. [2021-11-22 23:41:21,583 INFO L78 Accepts]: Start accepts. Automaton has 20609 states and 27006 transitions. Word has length 45 [2021-11-22 23:41:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:41:21,584 INFO L470 AbstractCegarLoop]: Abstraction has 20609 states and 27006 transitions. [2021-11-22 23:41:21,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-22 23:41:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 20609 states and 27006 transitions. [2021-11-22 23:41:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-22 23:41:21,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:41:21,592 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] [2021-11-22 23:41:21,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:41:21,593 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 23:41:21,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:41:21,596 INFO L85 PathProgramCache]: Analyzing trace with hash 77737591, now seen corresponding path program 1 times [2021-11-22 23:41:21,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:41:21,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857975716] [2021-11-22 23:41:21,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:41:21,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:41:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:41:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:41:21,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:41:21,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857975716] [2021-11-22 23:41:21,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857975716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:41:21,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:41:21,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:41:21,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914150260] [2021-11-22 23:41:21,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:41:21,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:41:21,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:41:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:41:21,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 23:41:21,764 INFO L87 Difference]: Start difference. First operand 20609 states and 27006 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-22 23:41:23,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:41:23,493 INFO L93 Difference]: Finished difference Result 68055 states and 89774 transitions. [2021-11-22 23:41:23,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:41:23,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-22 23:41:23,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:41:23,630 INFO L225 Difference]: With dead ends: 68055 [2021-11-22 23:41:23,631 INFO L226 Difference]: Without dead ends: 47464 [2021-11-22 23:41:23,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:41:23,698 INFO L933 BasicCegarLoop]: 26994 mSDtfsCounter, 25447 mSDsluCounter, 47055 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25447 SdHoareTripleChecker+Valid, 74049 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:41:23,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25447 Valid, 74049 Invalid, 67 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:41:23,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47464 states. [2021-11-22 23:41:24,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47464 to 37244. [2021-11-22 23:41:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37244 states, 37194 states have (on average 1.3154541055008873) internal successors, (48927), 37243 states have internal predecessors, (48927), 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) [2021-11-22 23:41:25,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37244 states to 37244 states and 48927 transitions. [2021-11-22 23:41:25,049 INFO L78 Accepts]: Start accepts. Automaton has 37244 states and 48927 transitions. Word has length 46 [2021-11-22 23:41:25,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:41:25,050 INFO L470 AbstractCegarLoop]: Abstraction has 37244 states and 48927 transitions. [2021-11-22 23:41:25,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-22 23:41:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 37244 states and 48927 transitions. [2021-11-22 23:41:25,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 23:41:25,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:41:25,064 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] [2021-11-22 23:41:25,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:41:25,065 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 23:41:25,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:41:25,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1326483852, now seen corresponding path program 1 times [2021-11-22 23:41:25,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:41:25,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453558699] [2021-11-22 23:41:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:41:25,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:41:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:41:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:41:25,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:41:25,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453558699] [2021-11-22 23:41:25,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453558699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:41:25,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:41:25,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:41:25,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137427728] [2021-11-22 23:41:25,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:41:25,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:41:25,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:41:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:41:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 23:41:25,218 INFO L87 Difference]: Start difference. First operand 37244 states and 48927 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 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) [2021-11-22 23:41:27,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:41:27,064 INFO L93 Difference]: Finished difference Result 124238 states and 164333 transitions. [2021-11-22 23:41:27,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:41:27,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 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 [2021-11-22 23:41:27,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:41:27,352 INFO L225 Difference]: With dead ends: 124238 [2021-11-22 23:41:27,353 INFO L226 Difference]: Without dead ends: 87012 [2021-11-22 23:41:27,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:41:27,629 INFO L933 BasicCegarLoop]: 26992 mSDtfsCounter, 25454 mSDsluCounter, 47055 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25454 SdHoareTripleChecker+Valid, 74047 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:41:27,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25454 Valid, 74047 Invalid, 67 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 23:41:27,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87012 states. [2021-11-22 23:41:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87012 to 66661. [2021-11-22 23:41:29,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66661 states, 66611 states have (on average 1.3175301376649502) internal successors, (87762), 66660 states have internal predecessors, (87762), 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) [2021-11-22 23:41:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66661 states to 66661 states and 87762 transitions. [2021-11-22 23:41:29,722 INFO L78 Accepts]: Start accepts. Automaton has 66661 states and 87762 transitions. Word has length 47 [2021-11-22 23:41:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:41:29,723 INFO L470 AbstractCegarLoop]: Abstraction has 66661 states and 87762 transitions. [2021-11-22 23:41:29,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 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) [2021-11-22 23:41:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 66661 states and 87762 transitions. [2021-11-22 23:41:29,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-22 23:41:29,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:41:29,730 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, 1] [2021-11-22 23:41:29,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 23:41:29,731 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 23:41:29,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:41:29,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1907663562, now seen corresponding path program 1 times [2021-11-22 23:41:29,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:41:29,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881815309] [2021-11-22 23:41:29,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:41:29,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:41:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:41:29,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:41:29,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:41:29,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881815309] [2021-11-22 23:41:29,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881815309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:41:29,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:41:29,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:41:29,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436389426] [2021-11-22 23:41:29,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:41:29,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 23:41:29,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:41:29,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 23:41:29,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 23:41:29,928 INFO L87 Difference]: Start difference. First operand 66661 states and 87762 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-22 23:41:33,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:41:33,235 INFO L93 Difference]: Finished difference Result 225041 states and 298418 transitions. [2021-11-22 23:41:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:41:33,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-22 23:41:33,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:41:33,812 INFO L225 Difference]: With dead ends: 225041 [2021-11-22 23:41:33,813 INFO L226 Difference]: Without dead ends: 158398 [2021-11-22 23:41:33,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:41:33,956 INFO L933 BasicCegarLoop]: 26990 mSDtfsCounter, 25461 mSDsluCounter, 47055 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25461 SdHoareTripleChecker+Valid, 74045 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 23:41:33,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25461 Valid, 74045 Invalid, 67 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 23:41:34,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158398 states. [2021-11-22 23:41:37,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158398 to 117788. [2021-11-22 23:41:37,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117788 states, 117738 states have (on average 1.3200156279196182) internal successors, (155416), 117787 states have internal predecessors, (155416), 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) [2021-11-22 23:41:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117788 states to 117788 states and 155416 transitions. [2021-11-22 23:41:37,735 INFO L78 Accepts]: Start accepts. Automaton has 117788 states and 155416 transitions. Word has length 48 [2021-11-22 23:41:37,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:41:37,735 INFO L470 AbstractCegarLoop]: Abstraction has 117788 states and 155416 transitions. [2021-11-22 23:41:37,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-22 23:41:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 117788 states and 155416 transitions. [2021-11-22 23:41:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 23:41:37,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:41:37,745 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 23:41:37,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 23:41:37,745 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 23:41:37,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:41:37,746 INFO L85 PathProgramCache]: Analyzing trace with hash 92081080, now seen corresponding path program 1 times [2021-11-22 23:41:37,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:41:37,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274647012] [2021-11-22 23:41:37,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:41:37,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:41:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:41:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:41:37,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:41:37,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274647012] [2021-11-22 23:41:37,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274647012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:41:37,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:41:37,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 23:41:37,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017811783] [2021-11-22 23:41:37,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:41:37,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:41:37,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:41:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:41:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:41:37,869 INFO L87 Difference]: Start difference. First operand 117788 states and 155416 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-22 23:41:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:41:43,438 INFO L93 Difference]: Finished difference Result 342768 states and 453790 transitions. [2021-11-22 23:41:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:41:43,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 53 [2021-11-22 23:41:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:41:44,040 INFO L225 Difference]: With dead ends: 342768 [2021-11-22 23:41:44,042 INFO L226 Difference]: Without dead ends: 224998 [2021-11-22 23:41:44,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 23:41:44,250 INFO L933 BasicCegarLoop]: 42053 mSDtfsCounter, 32327 mSDsluCounter, 104143 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32327 SdHoareTripleChecker+Valid, 146196 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 23:41:44,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32327 Valid, 146196 Invalid, 151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 23:41:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224998 states. [2021-11-22 23:41:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224998 to 117828. [2021-11-22 23:41:48,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117828 states, 117778 states have (on average 1.3199069435718045) internal successors, (155456), 117827 states have internal predecessors, (155456), 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) [2021-11-22 23:41:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117828 states to 117828 states and 155456 transitions. [2021-11-22 23:41:48,755 INFO L78 Accepts]: Start accepts. Automaton has 117828 states and 155456 transitions. Word has length 53 [2021-11-22 23:41:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:41:48,755 INFO L470 AbstractCegarLoop]: Abstraction has 117828 states and 155456 transitions. [2021-11-22 23:41:48,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-11-22 23:41:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 117828 states and 155456 transitions. [2021-11-22 23:41:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 23:41:48,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:41:48,765 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:41:48,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 23:41:48,766 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 47 more)] === [2021-11-22 23:41:48,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:41:48,766 INFO L85 PathProgramCache]: Analyzing trace with hash -44476284, now seen corresponding path program 1 times [2021-11-22 23:41:48,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:41:48,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160402062] [2021-11-22 23:41:48,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:41:48,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:41:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:41:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:41:48,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:41:48,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160402062] [2021-11-22 23:41:48,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160402062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:41:48,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:41:48,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:41:48,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241094486] [2021-11-22 23:41:48,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:41:48,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:41:48,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:41:48,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:41:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:41:48,874 INFO L87 Difference]: Start difference. First operand 117828 states and 155456 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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)