./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.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 f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:30:15,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:30:15,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:30:15,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:30:15,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:30:15,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:30:15,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:30:15,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:30:15,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:30:15,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:30:15,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:30:15,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:30:15,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:30:15,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:30:15,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:30:15,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:30:15,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:30:15,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:30:15,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:30:15,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:30:15,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:30:15,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:30:15,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:30:15,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:30:15,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:30:15,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:30:15,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:30:15,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:30:15,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:30:15,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:30:15,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:30:15,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:30:15,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:30:15,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:30:15,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:30:15,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:30:15,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:30:15,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:30:15,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:30:15,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:30:15,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:30:15,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:30:15,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:30:15,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:30:15,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:30:15,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:30:15,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:30:15,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:30:15,968 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:30:15,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:30:15,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:30:15,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:30:15,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:30:15,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:30:15,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:30:15,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:30:15,970 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:30:15,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:30:15,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:30:15,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:30:15,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:30:15,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:30:15,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:30:15,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:30:15,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:30:15,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:30:15,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:30:15,973 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:30:15,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:30:15,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:30:15,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:30:15,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2021-11-06 18:30:16,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:30:16,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:30:16,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:30:16,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:30:16,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:30:16,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-06 18:30:16,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df10274a0/e83b03e393bc46198912de18b837c735/FLAGa1523d7a4 [2021-11-06 18:30:17,057 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:30:17,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-06 18:30:17,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df10274a0/e83b03e393bc46198912de18b837c735/FLAGa1523d7a4 [2021-11-06 18:30:17,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df10274a0/e83b03e393bc46198912de18b837c735 [2021-11-06 18:30:17,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:30:17,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:30:17,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:30:17,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:30:17,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:30:17,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:30:17" (1/1) ... [2021-11-06 18:30:17,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51098650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:17, skipping insertion in model container [2021-11-06 18:30:17,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:30:17" (1/1) ... [2021-11-06 18:30:17,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:30:17,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:30:19,722 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2021-11-06 18:30:19,724 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2021-11-06 18:30:19,725 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2021-11-06 18:30:19,725 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2021-11-06 18:30:19,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:30:19,785 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:30:20,086 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2021-11-06 18:30:20,087 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2021-11-06 18:30:20,088 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2021-11-06 18:30:20,088 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2021-11-06 18:30:20,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:30:20,289 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:30:20,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20 WrapperNode [2021-11-06 18:30:20,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:30:20,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:30:20,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:30:20,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:30:20,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:20,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:23,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:30:23,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:30:23,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:30:23,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:30:23,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:23,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:24,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:24,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:26,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:26,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:26,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:27,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:30:27,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:30:27,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:30:27,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:30:27,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (1/1) ... [2021-11-06 18:30:27,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:30:27,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:30:27,446 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) [2021-11-06 18:30:27,459 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 [2021-11-06 18:30:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:30:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:30:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:30:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:30:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:30:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:30:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:30:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:30:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:30:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:30:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:30:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:30:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:30:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:30:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:31:39,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:31:39,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:31:39,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:31:39,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:31:39,681 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:31:39,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:31:39,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:31:39,759 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:31:39,760 INFO L299 CfgBuilder]: Removed 18405 assume(true) statements. [2021-11-06 18:31:39,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:31:39 BoogieIcfgContainer [2021-11-06 18:31:39,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:31:39,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:31:39,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:31:39,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:31:39,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:30:17" (1/3) ... [2021-11-06 18:31:39,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c153d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:31:39, skipping insertion in model container [2021-11-06 18:31:39,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:30:20" (2/3) ... [2021-11-06 18:31:39,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c153d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:31:39, skipping insertion in model container [2021-11-06 18:31:39,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:31:39" (3/3) ... [2021-11-06 18:31:39,789 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-06 18:31:39,796 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:31:39,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-06 18:31:39,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:31:39,895 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 [2021-11-06 18:31:39,895 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-06 18:31:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 18946 states, 18912 states have (on average 1.384887901861252) internal successors, (26191), 18945 states have internal predecessors, (26191), 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) [2021-11-06 18:31:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 18:31:40,135 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:40,136 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:31:40,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:31:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:40,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2049477516, now seen corresponding path program 1 times [2021-11-06 18:31:40,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:40,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579357413] [2021-11-06 18:31:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:40,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:40,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:40,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579357413] [2021-11-06 18:31:40,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579357413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:40,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:40,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:40,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448790696] [2021-11-06 18:31:40,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:40,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:40,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:40,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:40,879 INFO L87 Difference]: Start difference. First operand has 18946 states, 18912 states have (on average 1.384887901861252) internal successors, (26191), 18945 states have internal predecessors, (26191), 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 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-06 18:31:44,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:44,382 INFO L93 Difference]: Finished difference Result 56167 states and 77717 transitions. [2021-11-06 18:31:44,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:44,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-06 18:31:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:44,580 INFO L225 Difference]: With dead ends: 56167 [2021-11-06 18:31:44,580 INFO L226 Difference]: Without dead ends: 35043 [2021-11-06 18:31:44,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35043 states. [2021-11-06 18:31:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35043 to 35011. [2021-11-06 18:31:45,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35011 states, 34977 states have (on average 1.342367841724562) internal successors, (46952), 35010 states have internal predecessors, (46952), 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) [2021-11-06 18:31:45,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35011 states to 35011 states and 46952 transitions. [2021-11-06 18:31:45,849 INFO L78 Accepts]: Start accepts. Automaton has 35011 states and 46952 transitions. Word has length 80 [2021-11-06 18:31:45,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:45,850 INFO L470 AbstractCegarLoop]: Abstraction has 35011 states and 46952 transitions. [2021-11-06 18:31:45,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-06 18:31:45,851 INFO L276 IsEmpty]: Start isEmpty. Operand 35011 states and 46952 transitions. [2021-11-06 18:31:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 18:31:45,857 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:45,857 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:31:45,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:31:45,858 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:31:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:45,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2061509344, now seen corresponding path program 1 times [2021-11-06 18:31:45,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:45,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657376382] [2021-11-06 18:31:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:45,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:46,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:46,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657376382] [2021-11-06 18:31:46,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657376382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:46,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:46,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:46,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055729297] [2021-11-06 18:31:46,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:46,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:46,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:46,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:46,158 INFO L87 Difference]: Start difference. First operand 35011 states and 46952 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-06 18:31:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:49,310 INFO L93 Difference]: Finished difference Result 62186 states and 83347 transitions. [2021-11-06 18:31:49,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:49,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2021-11-06 18:31:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:49,394 INFO L225 Difference]: With dead ends: 62186 [2021-11-06 18:31:49,394 INFO L226 Difference]: Without dead ends: 27331 [2021-11-06 18:31:49,455 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27331 states. [2021-11-06 18:31:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27331 to 27215. [2021-11-06 18:31:50,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27215 states, 27181 states have (on average 1.3405319892572016) internal successors, (36437), 27214 states have internal predecessors, (36437), 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) [2021-11-06 18:31:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27215 states to 27215 states and 36437 transitions. [2021-11-06 18:31:50,165 INFO L78 Accepts]: Start accepts. Automaton has 27215 states and 36437 transitions. Word has length 85 [2021-11-06 18:31:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:50,168 INFO L470 AbstractCegarLoop]: Abstraction has 27215 states and 36437 transitions. [2021-11-06 18:31:50,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2021-11-06 18:31:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 27215 states and 36437 transitions. [2021-11-06 18:31:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-06 18:31:50,172 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:50,173 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:31:50,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:31:50,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:31:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:50,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2090854963, now seen corresponding path program 1 times [2021-11-06 18:31:50,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:50,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411874409] [2021-11-06 18:31:50,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:50,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:50,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:50,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411874409] [2021-11-06 18:31:50,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411874409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:50,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:50,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:50,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381308428] [2021-11-06 18:31:50,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:50,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:50,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:50,438 INFO L87 Difference]: Start difference. First operand 27215 states and 36437 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-06 18:31:53,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:53,110 INFO L93 Difference]: Finished difference Result 46568 states and 62345 transitions. [2021-11-06 18:31:53,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:53,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-06 18:31:53,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:53,164 INFO L225 Difference]: With dead ends: 46568 [2021-11-06 18:31:53,164 INFO L226 Difference]: Without dead ends: 19509 [2021-11-06 18:31:53,204 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19509 states. [2021-11-06 18:31:53,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19509 to 19509. [2021-11-06 18:31:53,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19509 states, 19479 states have (on average 1.3387237537861287) internal successors, (26077), 19508 states have internal predecessors, (26077), 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) [2021-11-06 18:31:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19509 states to 19509 states and 26077 transitions. [2021-11-06 18:31:53,781 INFO L78 Accepts]: Start accepts. Automaton has 19509 states and 26077 transitions. Word has length 101 [2021-11-06 18:31:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:53,783 INFO L470 AbstractCegarLoop]: Abstraction has 19509 states and 26077 transitions. [2021-11-06 18:31:53,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-06 18:31:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 19509 states and 26077 transitions. [2021-11-06 18:31:53,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-06 18:31:53,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:53,791 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:31:53,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:31:53,792 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:31:53,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:53,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1626535749, now seen corresponding path program 1 times [2021-11-06 18:31:53,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:53,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873565564] [2021-11-06 18:31:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:53,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:54,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:54,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873565564] [2021-11-06 18:31:54,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873565564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:54,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:54,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:54,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184924292] [2021-11-06 18:31:54,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:54,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:54,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:54,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:54,021 INFO L87 Difference]: Start difference. First operand 19509 states and 26077 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-06 18:31:56,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:31:56,892 INFO L93 Difference]: Finished difference Result 51662 states and 69130 transitions. [2021-11-06 18:31:56,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:31:56,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-11-06 18:31:56,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:31:56,969 INFO L225 Difference]: With dead ends: 51662 [2021-11-06 18:31:56,970 INFO L226 Difference]: Without dead ends: 32309 [2021-11-06 18:31:57,008 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32309 states. [2021-11-06 18:31:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32309 to 32179. [2021-11-06 18:31:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32179 states, 32149 states have (on average 1.3398550499237925) internal successors, (43075), 32178 states have internal predecessors, (43075), 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) [2021-11-06 18:31:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32179 states to 32179 states and 43075 transitions. [2021-11-06 18:31:57,876 INFO L78 Accepts]: Start accepts. Automaton has 32179 states and 43075 transitions. Word has length 111 [2021-11-06 18:31:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:31:57,878 INFO L470 AbstractCegarLoop]: Abstraction has 32179 states and 43075 transitions. [2021-11-06 18:31:57,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-06 18:31:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 32179 states and 43075 transitions. [2021-11-06 18:31:57,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-06 18:31:57,881 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:31:57,881 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:31:57,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:31:57,882 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:31:57,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:31:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1227260858, now seen corresponding path program 1 times [2021-11-06 18:31:57,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:31:57,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327312103] [2021-11-06 18:31:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:31:57,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:31:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:31:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:31:58,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:31:58,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327312103] [2021-11-06 18:31:58,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327312103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:31:58,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:31:58,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:31:58,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373919805] [2021-11-06 18:31:58,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:31:58,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:31:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:31:58,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:31:58,103 INFO L87 Difference]: Start difference. First operand 32179 states and 43075 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-06 18:32:01,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:01,684 INFO L93 Difference]: Finished difference Result 94285 states and 126428 transitions. [2021-11-06 18:32:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:32:01,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2021-11-06 18:32:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:01,848 INFO L225 Difference]: With dead ends: 94285 [2021-11-06 18:32:01,848 INFO L226 Difference]: Without dead ends: 62887 [2021-11-06 18:32:01,900 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:32:01,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62887 states. [2021-11-06 18:32:03,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62887 to 62830. [2021-11-06 18:32:03,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62830 states, 62800 states have (on average 1.3420063694267517) internal successors, (84278), 62829 states have internal predecessors, (84278), 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) [2021-11-06 18:32:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62830 states to 62830 states and 84278 transitions. [2021-11-06 18:32:03,299 INFO L78 Accepts]: Start accepts. Automaton has 62830 states and 84278 transitions. Word has length 113 [2021-11-06 18:32:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:03,299 INFO L470 AbstractCegarLoop]: Abstraction has 62830 states and 84278 transitions. [2021-11-06 18:32:03,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-06 18:32:03,299 INFO L276 IsEmpty]: Start isEmpty. Operand 62830 states and 84278 transitions. [2021-11-06 18:32:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-06 18:32:03,303 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:03,303 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:03,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:32:03,303 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:32:03,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:03,304 INFO L85 PathProgramCache]: Analyzing trace with hash -889535854, now seen corresponding path program 1 times [2021-11-06 18:32:03,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:03,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678863860] [2021-11-06 18:32:03,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:03,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:32:03,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:03,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678863860] [2021-11-06 18:32:03,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678863860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:03,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:03,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:32:03,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333292830] [2021-11-06 18:32:03,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:32:03,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:03,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:32:03,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:32:03,748 INFO L87 Difference]: Start difference. First operand 62830 states and 84278 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2021-11-06 18:32:05,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:05,193 INFO L93 Difference]: Finished difference Result 62830 states and 84278 transitions. [2021-11-06 18:32:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:32:05,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 113 [2021-11-06 18:32:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:05,438 INFO L225 Difference]: With dead ends: 62830 [2021-11-06 18:32:05,438 INFO L226 Difference]: Without dead ends: 62824 [2021-11-06 18:32:05,467 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:32:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62824 states. [2021-11-06 18:32:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62824 to 62824. [2021-11-06 18:32:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62824 states, 62797 states have (on average 1.341974935108365) internal successors, (84272), 62823 states have internal predecessors, (84272), 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) [2021-11-06 18:32:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62824 states to 62824 states and 84272 transitions. [2021-11-06 18:32:07,058 INFO L78 Accepts]: Start accepts. Automaton has 62824 states and 84272 transitions. Word has length 113 [2021-11-06 18:32:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:07,058 INFO L470 AbstractCegarLoop]: Abstraction has 62824 states and 84272 transitions. [2021-11-06 18:32:07,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2021-11-06 18:32:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 62824 states and 84272 transitions. [2021-11-06 18:32:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-06 18:32:07,062 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:07,062 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:07,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:32:07,063 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:32:07,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:07,063 INFO L85 PathProgramCache]: Analyzing trace with hash -145309259, now seen corresponding path program 1 times [2021-11-06 18:32:07,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:07,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130704400] [2021-11-06 18:32:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:07,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:32:07,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:07,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130704400] [2021-11-06 18:32:07,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130704400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:07,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:07,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:32:07,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925359554] [2021-11-06 18:32:07,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:32:07,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:07,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:32:07,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:32:07,439 INFO L87 Difference]: Start difference. First operand 62824 states and 84272 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2021-11-06 18:32:08,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:08,880 INFO L93 Difference]: Finished difference Result 62824 states and 84272 transitions. [2021-11-06 18:32:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:32:08,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 115 [2021-11-06 18:32:08,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:08,986 INFO L225 Difference]: With dead ends: 62824 [2021-11-06 18:32:08,987 INFO L226 Difference]: Without dead ends: 62818 [2021-11-06 18:32:09,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:32:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62818 states. [2021-11-06 18:32:10,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62818 to 62818. [2021-11-06 18:32:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62818 states, 62794 states have (on average 1.3419434977864126) internal successors, (84266), 62817 states have internal predecessors, (84266), 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) [2021-11-06 18:32:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62818 states to 62818 states and 84266 transitions. [2021-11-06 18:32:10,504 INFO L78 Accepts]: Start accepts. Automaton has 62818 states and 84266 transitions. Word has length 115 [2021-11-06 18:32:10,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:10,505 INFO L470 AbstractCegarLoop]: Abstraction has 62818 states and 84266 transitions. [2021-11-06 18:32:10,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2021-11-06 18:32:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 62818 states and 84266 transitions. [2021-11-06 18:32:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-06 18:32:10,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:10,512 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:10,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:32:10,512 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:32:10,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash 2091877720, now seen corresponding path program 1 times [2021-11-06 18:32:10,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:10,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475688102] [2021-11-06 18:32:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:10,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:32:10,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:10,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475688102] [2021-11-06 18:32:10,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475688102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:10,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:10,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:32:10,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868841709] [2021-11-06 18:32:10,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:32:10,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:10,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:32:10,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:32:10,833 INFO L87 Difference]: Start difference. First operand 62818 states and 84266 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-11-06 18:32:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:12,380 INFO L93 Difference]: Finished difference Result 62818 states and 84266 transitions. [2021-11-06 18:32:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:32:12,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 117 [2021-11-06 18:32:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:12,485 INFO L225 Difference]: With dead ends: 62818 [2021-11-06 18:32:12,485 INFO L226 Difference]: Without dead ends: 62812 [2021-11-06 18:32:12,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:32:12,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62812 states. [2021-11-06 18:32:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62812 to 62812. [2021-11-06 18:32:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62812 states, 62791 states have (on average 1.3419120574604642) internal successors, (84260), 62811 states have internal predecessors, (84260), 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) [2021-11-06 18:32:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62812 states to 62812 states and 84260 transitions. [2021-11-06 18:32:13,998 INFO L78 Accepts]: Start accepts. Automaton has 62812 states and 84260 transitions. Word has length 117 [2021-11-06 18:32:13,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:13,998 INFO L470 AbstractCegarLoop]: Abstraction has 62812 states and 84260 transitions. [2021-11-06 18:32:13,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-11-06 18:32:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand 62812 states and 84260 transitions. [2021-11-06 18:32:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-06 18:32:14,002 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:14,002 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:14,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:32:14,003 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:32:14,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash 249949563, now seen corresponding path program 1 times [2021-11-06 18:32:14,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:14,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084883565] [2021-11-06 18:32:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:14,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:32:14,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:14,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084883565] [2021-11-06 18:32:14,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084883565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:14,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:14,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:32:14,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185109838] [2021-11-06 18:32:14,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:32:14,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:14,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:32:14,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:32:14,328 INFO L87 Difference]: Start difference. First operand 62812 states and 84260 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-06 18:32:15,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:15,800 INFO L93 Difference]: Finished difference Result 62812 states and 84260 transitions. [2021-11-06 18:32:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:32:15,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 119 [2021-11-06 18:32:15,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:15,914 INFO L225 Difference]: With dead ends: 62812 [2021-11-06 18:32:15,914 INFO L226 Difference]: Without dead ends: 62806 [2021-11-06 18:32:15,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:32:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62806 states. [2021-11-06 18:32:17,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62806 to 62806. [2021-11-06 18:32:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62806 states, 62788 states have (on average 1.3418806141300885) internal successors, (84254), 62805 states have internal predecessors, (84254), 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) [2021-11-06 18:32:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62806 states to 62806 states and 84254 transitions. [2021-11-06 18:32:17,596 INFO L78 Accepts]: Start accepts. Automaton has 62806 states and 84254 transitions. Word has length 119 [2021-11-06 18:32:17,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:32:17,597 INFO L470 AbstractCegarLoop]: Abstraction has 62806 states and 84254 transitions. [2021-11-06 18:32:17,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-06 18:32:17,597 INFO L276 IsEmpty]: Start isEmpty. Operand 62806 states and 84254 transitions. [2021-11-06 18:32:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-06 18:32:17,601 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:32:17,601 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:32:17,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 18:32:17,602 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-06 18:32:17,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:32:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash -316483042, now seen corresponding path program 1 times [2021-11-06 18:32:17,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:32:17,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527769080] [2021-11-06 18:32:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:32:17,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:32:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:32:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:32:17,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:32:17,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527769080] [2021-11-06 18:32:17,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527769080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:32:17,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:32:17,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:32:17,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492337211] [2021-11-06 18:32:17,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:32:17,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:32:17,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:32:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:32:17,925 INFO L87 Difference]: Start difference. First operand 62806 states and 84254 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2021-11-06 18:32:20,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:32:20,750 INFO L93 Difference]: Finished difference Result 121027 states and 162392 transitions. [2021-11-06 18:32:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 18:32:20,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 121 [2021-11-06 18:32:20,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:32:20,996 INFO L225 Difference]: With dead ends: 121027 [2021-11-06 18:32:20,997 INFO L226 Difference]: Without dead ends: 121021 [2021-11-06 18:32:21,037 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:32:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121021 states.