./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d5b4b32fa0da80203e2a18166964cfde265e42cc1a9ca2751016d17ee22d414 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:48:57,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:48:57,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:48:57,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:48:57,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:48:57,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:48:57,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:48:57,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:48:57,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:48:57,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:48:57,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:48:57,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:48:57,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:48:57,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:48:57,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:48:57,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:48:57,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:48:57,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:48:57,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:48:57,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:48:57,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:48:57,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:48:57,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:48:57,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:48:57,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:48:57,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:48:57,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:48:57,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:48:57,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:48:57,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:48:57,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:48:57,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:48:57,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:48:57,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:48:57,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:48:57,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:48:57,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:48:57,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:48:57,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:48:57,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:48:57,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:48:57,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:48:57,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:48:57,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:48:57,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:48:57,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:48:57,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:48:57,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:48:57,883 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:48:57,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:48:57,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:48:57,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:48:57,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:48:57,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:48:57,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:48:57,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:48:57,885 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:48:57,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:48:57,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:48:57,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:48:57,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:48:57,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:48:57,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:48:57,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:48:57,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:48:57,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:48:57,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:48:57,887 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:48:57,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:48:57,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:48:57,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:48:57,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5b4b32fa0da80203e2a18166964cfde265e42cc1a9ca2751016d17ee22d414 [2021-11-07 13:48:58,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:48:58,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:48:58,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:48:58,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:48:58,126 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:48:58,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-11-07 13:48:58,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c78a8364/0db59336c3e24e59b11f481373097612/FLAG712970f38 [2021-11-07 13:48:58,770 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:48:58,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-11-07 13:48:58,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c78a8364/0db59336c3e24e59b11f481373097612/FLAG712970f38 [2021-11-07 13:48:59,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c78a8364/0db59336c3e24e59b11f481373097612 [2021-11-07 13:48:59,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:48:59,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:48:59,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:48:59,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:48:59,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:48:59,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:59" (1/1) ... [2021-11-07 13:48:59,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2902d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:59, skipping insertion in model container [2021-11-07 13:48:59,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:59" (1/1) ... [2021-11-07 13:48:59,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:48:59,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:49:00,025 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-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[110947,110960] [2021-11-07 13:49:00,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:49:00,446 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:49:00,549 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-validator-v0.6/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[110947,110960] [2021-11-07 13:49:00,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:49:00,789 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:49:00,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00 WrapperNode [2021-11-07 13:49:00,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:49:00,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:49:00,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:49:00,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:49:00,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:00,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:01,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:49:01,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:49:01,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:49:01,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:49:01,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:01,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:02,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:02,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:02,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:03,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:03,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:03,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:49:03,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:49:03,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:49:03,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:49:03,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (1/1) ... [2021-11-07 13:49:03,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:49:03,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:49:03,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 13:49:03,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 13:49:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 13:49:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:49:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:49:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:49:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:49:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:49:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:49:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 13:49:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:49:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:49:03,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:53:21,908 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:53:21,909 INFO L299 CfgBuilder]: Removed 8359 assume(true) statements. [2021-11-07 13:53:21,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:53:21 BoogieIcfgContainer [2021-11-07 13:53:21,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:53:21,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:53:21,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:53:21,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:53:21,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:48:59" (1/3) ... [2021-11-07 13:53:21,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c54acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:53:21, skipping insertion in model container [2021-11-07 13:53:21,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:00" (2/3) ... [2021-11-07 13:53:21,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c54acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:53:21, skipping insertion in model container [2021-11-07 13:53:21,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:53:21" (3/3) ... [2021-11-07 13:53:21,926 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-11-07 13:53:21,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:53:21,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 13:53:21,991 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:53:21,996 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 13:53:21,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 13:53:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 10332 states, 10320 states have (on average 1.5155038759689923) internal successors, (15640), 10331 states have internal predecessors, (15640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 13:53:22,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:22,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:22,119 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:22,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1946913747, now seen corresponding path program 1 times [2021-11-07 13:53:22,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:22,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460825789] [2021-11-07 13:53:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:22,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:22,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:22,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460825789] [2021-11-07 13:53:22,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460825789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:22,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:22,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:53:22,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831530163] [2021-11-07 13:53:22,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:22,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:53:22,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:22,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:53:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:22,886 INFO L87 Difference]: Start difference. First operand has 10332 states, 10320 states have (on average 1.5155038759689923) internal successors, (15640), 10331 states have internal predecessors, (15640), 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 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:25,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:53:25,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:25,597 INFO L93 Difference]: Finished difference Result 24000 states and 35614 transitions. [2021-11-07 13:53:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:53:25,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-07 13:53:25,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:25,673 INFO L225 Difference]: With dead ends: 24000 [2021-11-07 13:53:25,674 INFO L226 Difference]: Without dead ends: 13659 [2021-11-07 13:53:25,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:25,710 INFO L933 BasicCegarLoop]: 9823 mSDtfsCounter, 9689 mSDsluCounter, 9759 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2191.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9689 SdHoareTripleChecker+Valid, 19582 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.08ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2273.80ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:25,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9689 Valid, 19582 Invalid, 15 Unknown, 0 Unchecked, 46.08ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2273.80ms Time] [2021-11-07 13:53:25,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13659 states. [2021-11-07 13:53:26,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13659 to 13659. [2021-11-07 13:53:26,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13659 states, 13648 states have (on average 1.4243845252051583) internal successors, (19440), 13658 states have internal predecessors, (19440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:26,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13659 states to 13659 states and 19440 transitions. [2021-11-07 13:53:26,077 INFO L78 Accepts]: Start accepts. Automaton has 13659 states and 19440 transitions. Word has length 21 [2021-11-07 13:53:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:53:26,078 INFO L470 AbstractCegarLoop]: Abstraction has 13659 states and 19440 transitions. [2021-11-07 13:53:26,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:26,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13659 states and 19440 transitions. [2021-11-07 13:53:26,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 13:53:26,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:26,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:26,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:53:26,090 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:26,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1496146930, now seen corresponding path program 1 times [2021-11-07 13:53:26,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:26,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734485157] [2021-11-07 13:53:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:26,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:26,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:26,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734485157] [2021-11-07 13:53:26,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734485157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:26,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:26,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 13:53:26,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012214933] [2021-11-07 13:53:26,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:26,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:53:26,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:26,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:53:26,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:53:26,650 INFO L87 Difference]: Start difference. First operand 13659 states and 19440 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:28,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:28,874 INFO L93 Difference]: Finished difference Result 108904 states and 155077 transitions. [2021-11-07 13:53:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 13:53:28,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2021-11-07 13:53:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:29,190 INFO L225 Difference]: With dead ends: 108904 [2021-11-07 13:53:29,191 INFO L226 Difference]: Without dead ends: 95273 [2021-11-07 13:53:29,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 557.17ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-07 13:53:29,272 INFO L933 BasicCegarLoop]: 38912 mSDtfsCounter, 78060 mSDsluCounter, 116675 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 245.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 78060 SdHoareTripleChecker+Valid, 155587 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 151.40ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 257.87ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:29,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78060 Valid, 155587 Invalid, 47 Unknown, 0 Unchecked, 151.40ms Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 257.87ms Time] [2021-11-07 13:53:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95273 states. [2021-11-07 13:53:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95273 to 13662. [2021-11-07 13:53:30,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13662 states, 13651 states have (on average 1.4242912607135008) internal successors, (19443), 13661 states have internal predecessors, (19443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13662 states to 13662 states and 19443 transitions. [2021-11-07 13:53:30,577 INFO L78 Accepts]: Start accepts. Automaton has 13662 states and 19443 transitions. Word has length 36 [2021-11-07 13:53:30,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:53:30,580 INFO L470 AbstractCegarLoop]: Abstraction has 13662 states and 19443 transitions. [2021-11-07 13:53:30,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 13662 states and 19443 transitions. [2021-11-07 13:53:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 13:53:30,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:30,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:30,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:53:30,585 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:30,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:30,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2118761996, now seen corresponding path program 1 times [2021-11-07 13:53:30,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:30,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238060992] [2021-11-07 13:53:30,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:30,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:30,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:30,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238060992] [2021-11-07 13:53:30,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238060992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:30,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:30,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:53:30,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900688851] [2021-11-07 13:53:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:30,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:53:30,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:53:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:30,915 INFO L87 Difference]: Start difference. First operand 13662 states and 19443 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:31,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:31,338 INFO L93 Difference]: Finished difference Result 27266 states and 38824 transitions. [2021-11-07 13:53:31,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:53:31,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 36 [2021-11-07 13:53:31,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:31,394 INFO L225 Difference]: With dead ends: 27266 [2021-11-07 13:53:31,394 INFO L226 Difference]: Without dead ends: 27249 [2021-11-07 13:53:31,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:31,408 INFO L933 BasicCegarLoop]: 9807 mSDtfsCounter, 9762 mSDsluCounter, 9737 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9762 SdHoareTripleChecker+Valid, 19544 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.91ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.88ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:31,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9762 Valid, 19544 Invalid, 20 Unknown, 0 Unchecked, 19.91ms Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 74.88ms Time] [2021-11-07 13:53:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27249 states. [2021-11-07 13:53:32,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27249 to 27249. [2021-11-07 13:53:32,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27249 states, 27239 states have (on average 1.424648481956019) internal successors, (38806), 27248 states have internal predecessors, (38806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27249 states to 27249 states and 38806 transitions. [2021-11-07 13:53:32,337 INFO L78 Accepts]: Start accepts. Automaton has 27249 states and 38806 transitions. Word has length 36 [2021-11-07 13:53:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:53:32,338 INFO L470 AbstractCegarLoop]: Abstraction has 27249 states and 38806 transitions. [2021-11-07 13:53:32,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:32,340 INFO L276 IsEmpty]: Start isEmpty. Operand 27249 states and 38806 transitions. [2021-11-07 13:53:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 13:53:32,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:32,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:32,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:53:32,344 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:32,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1257075782, now seen corresponding path program 1 times [2021-11-07 13:53:32,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:32,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124495160] [2021-11-07 13:53:32,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:32,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:32,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:32,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:32,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124495160] [2021-11-07 13:53:32,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124495160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:32,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:32,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:53:32,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179327965] [2021-11-07 13:53:32,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:32,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:53:32,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:32,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:53:32,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:32,697 INFO L87 Difference]: Start difference. First operand 27249 states and 38806 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:33,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:33,645 INFO L93 Difference]: Finished difference Result 81660 states and 116324 transitions. [2021-11-07 13:53:33,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:53:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 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 37 [2021-11-07 13:53:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:33,782 INFO L225 Difference]: With dead ends: 81660 [2021-11-07 13:53:33,782 INFO L226 Difference]: Without dead ends: 54437 [2021-11-07 13:53:33,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:33,843 INFO L933 BasicCegarLoop]: 9830 mSDtfsCounter, 9755 mSDsluCounter, 9748 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9755 SdHoareTripleChecker+Valid, 19578 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.31ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.99ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:33,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9755 Valid, 19578 Invalid, 21 Unknown, 0 Unchecked, 16.31ms Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 90.99ms Time] [2021-11-07 13:53:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54437 states. [2021-11-07 13:53:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54437 to 54423. [2021-11-07 13:53:35,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54423 states, 54414 states have (on average 1.4249274083875474) internal successors, (77536), 54422 states have internal predecessors, (77536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54423 states to 54423 states and 77536 transitions. [2021-11-07 13:53:35,258 INFO L78 Accepts]: Start accepts. Automaton has 54423 states and 77536 transitions. Word has length 37 [2021-11-07 13:53:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:53:35,259 INFO L470 AbstractCegarLoop]: Abstraction has 54423 states and 77536 transitions. [2021-11-07 13:53:35,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 54423 states and 77536 transitions. [2021-11-07 13:53:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 13:53:35,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:35,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:35,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:53:35,265 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:35,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:35,266 INFO L85 PathProgramCache]: Analyzing trace with hash 529445630, now seen corresponding path program 1 times [2021-11-07 13:53:35,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:35,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187612235] [2021-11-07 13:53:35,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:35,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:35,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:35,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:35,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187612235] [2021-11-07 13:53:35,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187612235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:35,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:35,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 13:53:35,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796100170] [2021-11-07 13:53:35,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:35,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:53:35,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:35,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:53:35,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:53:35,724 INFO L87 Difference]: Start difference. First operand 54423 states and 77536 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:39,555 INFO L93 Difference]: Finished difference Result 231034 states and 329191 transitions. [2021-11-07 13:53:39,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 13:53:39,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-11-07 13:53:39,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:40,192 INFO L225 Difference]: With dead ends: 231034 [2021-11-07 13:53:40,192 INFO L226 Difference]: Without dead ends: 176639 [2021-11-07 13:53:40,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 469.41ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 13:53:40,299 INFO L933 BasicCegarLoop]: 19519 mSDtfsCounter, 77917 mSDsluCounter, 107088 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 227.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77917 SdHoareTripleChecker+Valid, 126607 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 97.56ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 237.34ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:40,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77917 Valid, 126607 Invalid, 44 Unknown, 0 Unchecked, 97.56ms Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 237.34ms Time] [2021-11-07 13:53:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176639 states. [2021-11-07 13:53:42,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176639 to 54429. [2021-11-07 13:53:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54429 states, 54420 states have (on average 1.424880558618155) internal successors, (77542), 54428 states have internal predecessors, (77542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:42,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54429 states to 54429 states and 77542 transitions. [2021-11-07 13:53:42,481 INFO L78 Accepts]: Start accepts. Automaton has 54429 states and 77542 transitions. Word has length 40 [2021-11-07 13:53:42,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:53:42,482 INFO L470 AbstractCegarLoop]: Abstraction has 54429 states and 77542 transitions. [2021-11-07 13:53:42,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 54429 states and 77542 transitions. [2021-11-07 13:53:42,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 13:53:42,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:42,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:42,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 13:53:42,490 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:42,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:42,491 INFO L85 PathProgramCache]: Analyzing trace with hash -279900996, now seen corresponding path program 1 times [2021-11-07 13:53:42,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:42,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835935035] [2021-11-07 13:53:42,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:42,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:42,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:42,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835935035] [2021-11-07 13:53:42,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835935035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:42,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:42,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:53:42,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713235717] [2021-11-07 13:53:42,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:42,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:53:42,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:42,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:53:42,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:42,793 INFO L87 Difference]: Start difference. First operand 54429 states and 77542 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:44,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:53:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:46,295 INFO L93 Difference]: Finished difference Result 54443 states and 77549 transitions. [2021-11-07 13:53:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:53:46,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2021-11-07 13:53:46,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:46,411 INFO L225 Difference]: With dead ends: 54443 [2021-11-07 13:53:46,412 INFO L226 Difference]: Without dead ends: 54437 [2021-11-07 13:53:46,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:53:46,433 INFO L933 BasicCegarLoop]: 19510 mSDtfsCounter, 9739 mSDsluCounter, 9784 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2174.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9739 SdHoareTripleChecker+Valid, 29294 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.03ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2328.60ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:46,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9739 Valid, 29294 Invalid, 16 Unknown, 0 Unchecked, 25.03ms Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2328.60ms Time] [2021-11-07 13:53:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54437 states. [2021-11-07 13:53:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54437 to 54429. [2021-11-07 13:53:47,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54429 states, 54420 states have (on average 1.4248254318265343) internal successors, (77539), 54428 states have internal predecessors, (77539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:47,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54429 states to 54429 states and 77539 transitions. [2021-11-07 13:53:47,913 INFO L78 Accepts]: Start accepts. Automaton has 54429 states and 77539 transitions. Word has length 40 [2021-11-07 13:53:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:53:47,914 INFO L470 AbstractCegarLoop]: Abstraction has 54429 states and 77539 transitions. [2021-11-07 13:53:47,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 54429 states and 77539 transitions. [2021-11-07 13:53:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 13:53:47,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:47,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:47,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 13:53:47,919 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:47,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:47,920 INFO L85 PathProgramCache]: Analyzing trace with hash -866707010, now seen corresponding path program 1 times [2021-11-07 13:53:47,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:47,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40617268] [2021-11-07 13:53:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:47,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:48,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:48,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:48,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40617268] [2021-11-07 13:53:48,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40617268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:48,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:48,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 13:53:48,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869226188] [2021-11-07 13:53:48,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:48,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 13:53:48,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:48,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 13:53:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 13:53:48,476 INFO L87 Difference]: Start difference. First operand 54429 states and 77539 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:51,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:51,387 INFO L93 Difference]: Finished difference Result 142699 states and 203316 transitions. [2021-11-07 13:53:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 13:53:51,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-11-07 13:53:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:51,569 INFO L225 Difference]: With dead ends: 142699 [2021-11-07 13:53:51,569 INFO L226 Difference]: Without dead ends: 88298 [2021-11-07 13:53:51,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 396.42ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 13:53:51,635 INFO L933 BasicCegarLoop]: 19448 mSDtfsCounter, 48619 mSDsluCounter, 68237 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 260.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48619 SdHoareTripleChecker+Valid, 87685 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.07ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 297.82ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:51,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48619 Valid, 87685 Invalid, 40 Unknown, 0 Unchecked, 68.07ms Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 297.82ms Time] [2021-11-07 13:53:51,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88298 states. [2021-11-07 13:53:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88298 to 40824. [2021-11-07 13:53:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40824 states, 40816 states have (on average 1.4246373970991768) internal successors, (58148), 40823 states have internal predecessors, (58148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40824 states to 40824 states and 58148 transitions. [2021-11-07 13:53:53,419 INFO L78 Accepts]: Start accepts. Automaton has 40824 states and 58148 transitions. Word has length 40 [2021-11-07 13:53:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:53:53,419 INFO L470 AbstractCegarLoop]: Abstraction has 40824 states and 58148 transitions. [2021-11-07 13:53:53,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 40824 states and 58148 transitions. [2021-11-07 13:53:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 13:53:53,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:53:53,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:53:53,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 13:53:53,426 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:53:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:53:53,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1690408186, now seen corresponding path program 1 times [2021-11-07 13:53:53,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:53:53,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958981669] [2021-11-07 13:53:53,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:53:53,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:53:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:53:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:53:54,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:53:54,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958981669] [2021-11-07 13:53:54,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958981669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:53:54,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:53:54,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 13:53:54,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966233343] [2021-11-07 13:53:54,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:53:54,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 13:53:54,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:53:54,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 13:53:54,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:53:54,099 INFO L87 Difference]: Start difference. First operand 40824 states and 58148 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:53:58,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:53:58,282 INFO L93 Difference]: Finished difference Result 122338 states and 174275 transitions. [2021-11-07 13:53:58,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 13:53:58,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-07 13:53:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:53:58,542 INFO L225 Difference]: With dead ends: 122338 [2021-11-07 13:53:58,542 INFO L226 Difference]: Without dead ends: 122326 [2021-11-07 13:53:58,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 758.96ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-07 13:53:58,587 INFO L933 BasicCegarLoop]: 19525 mSDtfsCounter, 116752 mSDsluCounter, 87830 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 234.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 116752 SdHoareTripleChecker+Valid, 107355 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.84ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 244.69ms IncrementalHoareTripleChecker+Time [2021-11-07 13:53:58,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116752 Valid, 107355 Invalid, 47 Unknown, 0 Unchecked, 105.84ms Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 244.69ms Time] [2021-11-07 13:53:58,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122326 states. [2021-11-07 13:54:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122326 to 40828. [2021-11-07 13:54:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40828 states, 40820 states have (on average 1.4245957863792258) internal successors, (58152), 40827 states have internal predecessors, (58152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:54:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40828 states to 40828 states and 58152 transitions. [2021-11-07 13:54:00,551 INFO L78 Accepts]: Start accepts. Automaton has 40828 states and 58152 transitions. Word has length 45 [2021-11-07 13:54:00,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:54:00,551 INFO L470 AbstractCegarLoop]: Abstraction has 40828 states and 58152 transitions. [2021-11-07 13:54:00,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:54:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 40828 states and 58152 transitions. [2021-11-07 13:54:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 13:54:00,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:54:00,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:54:00,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 13:54:00,557 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 13:54:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:54:00,558 INFO L85 PathProgramCache]: Analyzing trace with hash 867246282, now seen corresponding path program 1 times [2021-11-07 13:54:00,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:54:00,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228596803] [2021-11-07 13:54:00,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:54:00,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:54:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:54:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:54:00,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:54:00,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228596803] [2021-11-07 13:54:00,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228596803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:54:00,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:54:00,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:54:00,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089470386] [2021-11-07 13:54:00,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:54:00,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:54:00,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:54:00,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:54:00,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:54:00,858 INFO L87 Difference]: Start difference. First operand 40828 states and 58152 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)