./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 5f08f0f0 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-5f08f0f [2021-11-05 17:17:09,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:17:09,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:17:09,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:17:09,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:17:09,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:17:09,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:17:09,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:17:09,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:17:09,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:17:09,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:17:09,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:17:09,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:17:09,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:17:09,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:17:09,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:17:09,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:17:09,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:17:09,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:17:09,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:17:09,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:17:09,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:17:09,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:17:09,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:17:09,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:17:09,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:17:09,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:17:09,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:17:09,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:17:09,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:17:09,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:17:09,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:17:09,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:17:09,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:17:09,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:17:09,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:17:09,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:17:09,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:17:09,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:17:09,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:17:09,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:17:09,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 17:17:10,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:17:10,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:17:10,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:17:10,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:17:10,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:17:10,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:17:10,027 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:17:10,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:17:10,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 17:17:10,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:17:10,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:17:10,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:17:10,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:17:10,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:17:10,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:17:10,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:17:10,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:17:10,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:17:10,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:17:10,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:17:10,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:17:10,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:17:10,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:17:10,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 17:17:10,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 17:17:10,035 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:17:10,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:17:10,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:17:10,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:17:10,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5b4b32fa0da80203e2a18166964cfde265e42cc1a9ca2751016d17ee22d414 [2021-11-05 17:17:10,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:17:10,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:17:10,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:17:10,335 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:17:10,339 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:17:10,341 INFO L432 ainManager$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 [2021-11-05 17:17:10,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a71876a3/a546e59d21904dfd9374013006e00476/FLAG87e756f4d [2021-11-05 17:17:11,042 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:17:11,043 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 [2021-11-05 17:17:11,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a71876a3/a546e59d21904dfd9374013006e00476/FLAG87e756f4d [2021-11-05 17:17:11,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a71876a3/a546e59d21904dfd9374013006e00476 [2021-11-05 17:17:11,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:17:11,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:17:11,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:17:11,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:17:11,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:17:11,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:17:11" (1/1) ... [2021-11-05 17:17:11,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0a1361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:11, skipping insertion in model container [2021-11-05 17:17:11,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:17:11" (1/1) ... [2021-11-05 17:17:11,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:17:11,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:17:12,377 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] [2021-11-05 17:17:12,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:17:12,636 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:17:12,732 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] [2021-11-05 17:17:12,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:17:13,026 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:17:13,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13 WrapperNode [2021-11-05 17:17:13,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:17:13,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:17:13,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:17:13,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:17:13,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:13,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:14,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:17:14,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:17:14,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:17:14,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:17:14,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:14,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:14,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:14,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:15,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:15,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:15,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:15,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:17:15,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:17:15,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:17:15,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:17:15,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (1/1) ... [2021-11-05 17:17:15,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:17:15,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:17:15,965 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) [2021-11-05 17:17:16,015 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 [2021-11-05 17:17:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 17:17:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 17:17:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 17:17:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 17:17:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:17:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2021-11-05 17:17:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:17:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 17:17:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 17:17:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:17:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:21:38,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:21:38,389 INFO L299 CfgBuilder]: Removed 8359 assume(true) statements. [2021-11-05 17:21:38,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:21:38 BoogieIcfgContainer [2021-11-05 17:21:38,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:21:38,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:21:38,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:21:38,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:21:38,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:17:11" (1/3) ... [2021-11-05 17:21:38,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca29300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:21:38, skipping insertion in model container [2021-11-05 17:21:38,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:17:13" (2/3) ... [2021-11-05 17:21:38,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca29300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:21:38, skipping insertion in model container [2021-11-05 17:21:38,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:21:38" (3/3) ... [2021-11-05 17:21:38,408 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-11-05 17:21:38,413 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:21:38,413 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 17:21:38,484 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:21:38,489 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 [2021-11-05 17:21:38,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 17:21:38,608 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) [2021-11-05 17:21:38,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-05 17:21:38,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:38,616 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] [2021-11-05 17:21:38,617 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)] === [2021-11-05 17:21:38,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:38,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1946913747, now seen corresponding path program 1 times [2021-11-05 17:21:38,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:38,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587780315] [2021-11-05 17:21:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:38,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:21:39,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:39,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587780315] [2021-11-05 17:21:39,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587780315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:39,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:39,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:21:39,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700354024] [2021-11-05 17:21:39,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:39,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:21:39,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:39,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:21:39,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:39,456 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) [2021-11-05 17:21:41,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:21:42,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:42,422 INFO L93 Difference]: Finished difference Result 24000 states and 35614 transitions. [2021-11-05 17:21:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:21:42,424 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 [2021-11-05 17:21:42,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:42,481 INFO L225 Difference]: With dead ends: 24000 [2021-11-05 17:21:42,482 INFO L226 Difference]: Without dead ends: 13659 [2021-11-05 17:21:42,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:42,505 INFO L933 BasicCegarLoop]: 9823 mSDtfsCounter, 9689 mSDsluCounter, 9759 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2199.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9689 SdHoareTripleChecker+Valid, 19582 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.51ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2313.19ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:42,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9689 Valid, 19582 Invalid, 15 Unknown, 0 Unchecked, 34.51ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2313.19ms Time] [2021-11-05 17:21:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13659 states. [2021-11-05 17:21:42,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13659 to 13659. [2021-11-05 17:21:42,842 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) [2021-11-05 17:21:42,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13659 states to 13659 states and 19440 transitions. [2021-11-05 17:21:42,881 INFO L78 Accepts]: Start accepts. Automaton has 13659 states and 19440 transitions. Word has length 21 [2021-11-05 17:21:42,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:42,883 INFO L470 AbstractCegarLoop]: Abstraction has 13659 states and 19440 transitions. [2021-11-05 17:21:42,884 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) [2021-11-05 17:21:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 13659 states and 19440 transitions. [2021-11-05 17:21:42,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 17:21:42,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:42,893 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] [2021-11-05 17:21:42,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 17:21:42,894 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)] === [2021-11-05 17:21:42,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:42,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1496146930, now seen corresponding path program 1 times [2021-11-05 17:21:42,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:42,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473023939] [2021-11-05 17:21:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:42,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:21:43,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:43,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473023939] [2021-11-05 17:21:43,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473023939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:43,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:43,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 17:21:43,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945627428] [2021-11-05 17:21:43,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:43,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 17:21:43,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:43,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 17:21:43,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 17:21:43,416 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) [2021-11-05 17:21:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:45,630 INFO L93 Difference]: Finished difference Result 108904 states and 155077 transitions. [2021-11-05 17:21:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 17:21:45,631 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 [2021-11-05 17:21:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:45,902 INFO L225 Difference]: With dead ends: 108904 [2021-11-05 17:21:45,903 INFO L226 Difference]: Without dead ends: 95273 [2021-11-05 17:21:45,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 530.90ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-05 17:21:45,981 INFO L933 BasicCegarLoop]: 38912 mSDtfsCounter, 78060 mSDsluCounter, 116675 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 78060 SdHoareTripleChecker+Valid, 155587 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 117.63ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266.84ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:45,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78060 Valid, 155587 Invalid, 47 Unknown, 0 Unchecked, 117.63ms Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 266.84ms Time] [2021-11-05 17:21:46,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95273 states. [2021-11-05 17:21:47,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95273 to 13662. [2021-11-05 17:21:47,359 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) [2021-11-05 17:21:47,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13662 states to 13662 states and 19443 transitions. [2021-11-05 17:21:47,387 INFO L78 Accepts]: Start accepts. Automaton has 13662 states and 19443 transitions. Word has length 36 [2021-11-05 17:21:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:47,387 INFO L470 AbstractCegarLoop]: Abstraction has 13662 states and 19443 transitions. [2021-11-05 17:21:47,388 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) [2021-11-05 17:21:47,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13662 states and 19443 transitions. [2021-11-05 17:21:47,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 17:21:47,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:47,406 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] [2021-11-05 17:21:47,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 17:21:47,407 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)] === [2021-11-05 17:21:47,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:47,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2118761996, now seen corresponding path program 1 times [2021-11-05 17:21:47,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:47,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794958646] [2021-11-05 17:21:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:47,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:21:47,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:47,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794958646] [2021-11-05 17:21:47,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794958646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:47,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:47,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:21:47,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309683891] [2021-11-05 17:21:47,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:47,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:21:47,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:47,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:21:47,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:47,830 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) [2021-11-05 17:21:48,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:48,331 INFO L93 Difference]: Finished difference Result 27266 states and 38824 transitions. [2021-11-05 17:21:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:21:48,331 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 [2021-11-05 17:21:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:48,382 INFO L225 Difference]: With dead ends: 27266 [2021-11-05 17:21:48,383 INFO L226 Difference]: Without dead ends: 27249 [2021-11-05 17:21:48,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:48,396 INFO L933 BasicCegarLoop]: 9807 mSDtfsCounter, 9762 mSDsluCounter, 9737 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9762 SdHoareTripleChecker+Valid, 19544 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 96.24ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.27ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:48,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9762 Valid, 19544 Invalid, 20 Unknown, 0 Unchecked, 96.24ms Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 79.27ms Time] [2021-11-05 17:21:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27249 states. [2021-11-05 17:21:48,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27249 to 27249. [2021-11-05 17:21:48,918 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) [2021-11-05 17:21:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27249 states to 27249 states and 38806 transitions. [2021-11-05 17:21:48,965 INFO L78 Accepts]: Start accepts. Automaton has 27249 states and 38806 transitions. Word has length 36 [2021-11-05 17:21:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:48,966 INFO L470 AbstractCegarLoop]: Abstraction has 27249 states and 38806 transitions. [2021-11-05 17:21:48,966 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) [2021-11-05 17:21:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 27249 states and 38806 transitions. [2021-11-05 17:21:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 17:21:48,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:48,969 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] [2021-11-05 17:21:48,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 17:21:48,970 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)] === [2021-11-05 17:21:48,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:48,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1257075782, now seen corresponding path program 1 times [2021-11-05 17:21:48,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:48,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004759553] [2021-11-05 17:21:48,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:48,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:49,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:21:49,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:49,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004759553] [2021-11-05 17:21:49,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004759553] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:49,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:49,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:21:49,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387319895] [2021-11-05 17:21:49,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:49,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:21:49,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:21:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:49,291 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) [2021-11-05 17:21:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:50,399 INFO L93 Difference]: Finished difference Result 81660 states and 116324 transitions. [2021-11-05 17:21:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:21:50,400 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 [2021-11-05 17:21:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:50,521 INFO L225 Difference]: With dead ends: 81660 [2021-11-05 17:21:50,521 INFO L226 Difference]: Without dead ends: 54437 [2021-11-05 17:21:50,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:50,571 INFO L933 BasicCegarLoop]: 9830 mSDtfsCounter, 9755 mSDsluCounter, 9748 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9755 SdHoareTripleChecker+Valid, 19578 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.67ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.22ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:50,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9755 Valid, 19578 Invalid, 21 Unknown, 0 Unchecked, 15.67ms Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 92.22ms Time] [2021-11-05 17:21:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54437 states. [2021-11-05 17:21:51,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54437 to 54423. [2021-11-05 17:21:51,775 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) [2021-11-05 17:21:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54423 states to 54423 states and 77536 transitions. [2021-11-05 17:21:51,872 INFO L78 Accepts]: Start accepts. Automaton has 54423 states and 77536 transitions. Word has length 37 [2021-11-05 17:21:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:51,872 INFO L470 AbstractCegarLoop]: Abstraction has 54423 states and 77536 transitions. [2021-11-05 17:21:51,873 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) [2021-11-05 17:21:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 54423 states and 77536 transitions. [2021-11-05 17:21:51,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 17:21:51,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:51,877 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] [2021-11-05 17:21:51,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 17:21:51,878 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)] === [2021-11-05 17:21:51,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:51,878 INFO L85 PathProgramCache]: Analyzing trace with hash 529445630, now seen corresponding path program 1 times [2021-11-05 17:21:51,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:51,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372654560] [2021-11-05 17:21:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:51,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:21:52,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:52,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372654560] [2021-11-05 17:21:52,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372654560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:52,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:52,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 17:21:52,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065658723] [2021-11-05 17:21:52,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:52,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 17:21:52,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:52,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 17:21:52,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 17:21:52,319 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) [2021-11-05 17:21:56,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:56,571 INFO L93 Difference]: Finished difference Result 231034 states and 329191 transitions. [2021-11-05 17:21:56,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 17:21:56,571 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 [2021-11-05 17:21:56,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:57,224 INFO L225 Difference]: With dead ends: 231034 [2021-11-05 17:21:57,225 INFO L226 Difference]: Without dead ends: 176639 [2021-11-05 17:21:57,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 439.93ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-05 17:21:57,394 INFO L933 BasicCegarLoop]: 19519 mSDtfsCounter, 77917 mSDsluCounter, 107088 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 213.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77917 SdHoareTripleChecker+Valid, 126607 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.28ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 232.04ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:57,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77917 Valid, 126607 Invalid, 44 Unknown, 0 Unchecked, 102.28ms Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 232.04ms Time] [2021-11-05 17:21:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176639 states. [2021-11-05 17:21:59,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176639 to 54429. [2021-11-05 17:21:59,611 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) [2021-11-05 17:21:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54429 states to 54429 states and 77542 transitions. [2021-11-05 17:21:59,715 INFO L78 Accepts]: Start accepts. Automaton has 54429 states and 77542 transitions. Word has length 40 [2021-11-05 17:21:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:59,715 INFO L470 AbstractCegarLoop]: Abstraction has 54429 states and 77542 transitions. [2021-11-05 17:21:59,716 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) [2021-11-05 17:21:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 54429 states and 77542 transitions. [2021-11-05 17:21:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 17:21:59,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:59,725 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] [2021-11-05 17:21:59,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 17:21:59,726 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)] === [2021-11-05 17:21:59,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash -279900996, now seen corresponding path program 1 times [2021-11-05 17:21:59,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:59,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926648151] [2021-11-05 17:21:59,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:59,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:21:59,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:59,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926648151] [2021-11-05 17:21:59,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926648151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:59,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:59,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:21:59,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669095480] [2021-11-05 17:21:59,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:59,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:21:59,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:21:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:59,985 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) [2021-11-05 17:22:02,097 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 [] [2021-11-05 17:22:03,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:22:03,468 INFO L93 Difference]: Finished difference Result 54443 states and 77549 transitions. [2021-11-05 17:22:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:22:03,468 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 [2021-11-05 17:22:03,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:22:03,566 INFO L225 Difference]: With dead ends: 54443 [2021-11-05 17:22:03,567 INFO L226 Difference]: Without dead ends: 54437 [2021-11-05 17:22:03,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:22:03,587 INFO L933 BasicCegarLoop]: 19510 mSDtfsCounter, 9739 mSDsluCounter, 9784 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2171.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9739 SdHoareTripleChecker+Valid, 29294 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.17ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2310.16ms IncrementalHoareTripleChecker+Time [2021-11-05 17:22:03,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9739 Valid, 29294 Invalid, 16 Unknown, 0 Unchecked, 17.17ms Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2310.16ms Time] [2021-11-05 17:22:03,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54437 states. [2021-11-05 17:22:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54437 to 54429. [2021-11-05 17:22:04,993 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) [2021-11-05 17:22:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54429 states to 54429 states and 77539 transitions. [2021-11-05 17:22:05,098 INFO L78 Accepts]: Start accepts. Automaton has 54429 states and 77539 transitions. Word has length 40 [2021-11-05 17:22:05,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:22:05,098 INFO L470 AbstractCegarLoop]: Abstraction has 54429 states and 77539 transitions. [2021-11-05 17:22:05,098 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) [2021-11-05 17:22:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 54429 states and 77539 transitions. [2021-11-05 17:22:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 17:22:05,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:22:05,103 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] [2021-11-05 17:22:05,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 17:22:05,104 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)] === [2021-11-05 17:22:05,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:22:05,104 INFO L85 PathProgramCache]: Analyzing trace with hash -866707010, now seen corresponding path program 1 times [2021-11-05 17:22:05,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:22:05,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967457715] [2021-11-05 17:22:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:22:05,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:22:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:22:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:22:05,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:22:05,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967457715] [2021-11-05 17:22:05,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967457715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:22:05,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:22:05,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 17:22:05,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640995223] [2021-11-05 17:22:05,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:22:05,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 17:22:05,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:22:05,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 17:22:05,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 17:22:05,659 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) [2021-11-05 17:22:08,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:22:08,414 INFO L93 Difference]: Finished difference Result 142699 states and 203316 transitions. [2021-11-05 17:22:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 17:22:08,415 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 [2021-11-05 17:22:08,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:22:08,695 INFO L225 Difference]: With dead ends: 142699 [2021-11-05 17:22:08,696 INFO L226 Difference]: Without dead ends: 88298 [2021-11-05 17:22:08,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 341.64ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 17:22:08,745 INFO L933 BasicCegarLoop]: 19448 mSDtfsCounter, 48619 mSDsluCounter, 68237 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 229.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48619 SdHoareTripleChecker+Valid, 87685 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.67ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 238.77ms IncrementalHoareTripleChecker+Time [2021-11-05 17:22:08,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48619 Valid, 87685 Invalid, 40 Unknown, 0 Unchecked, 61.67ms Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 238.77ms Time] [2021-11-05 17:22:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88298 states. [2021-11-05 17:22:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88298 to 40824. [2021-11-05 17:22:10,365 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) [2021-11-05 17:22:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40824 states to 40824 states and 58148 transitions. [2021-11-05 17:22:10,445 INFO L78 Accepts]: Start accepts. Automaton has 40824 states and 58148 transitions. Word has length 40 [2021-11-05 17:22:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:22:10,446 INFO L470 AbstractCegarLoop]: Abstraction has 40824 states and 58148 transitions. [2021-11-05 17:22:10,446 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) [2021-11-05 17:22:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 40824 states and 58148 transitions. [2021-11-05 17:22:10,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 17:22:10,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:22:10,452 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] [2021-11-05 17:22:10,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 17:22:10,452 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)] === [2021-11-05 17:22:10,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:22:10,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1690408186, now seen corresponding path program 1 times [2021-11-05 17:22:10,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:22:10,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750638072] [2021-11-05 17:22:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:22:10,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:22:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:22:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:22:10,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:22:10,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750638072] [2021-11-05 17:22:10,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750638072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:22:10,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:22:10,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 17:22:10,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710843702] [2021-11-05 17:22:10,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:22:10,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 17:22:10,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:22:10,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 17:22:10,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:22:10,982 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) [2021-11-05 17:22:15,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:22:15,107 INFO L93 Difference]: Finished difference Result 122338 states and 174275 transitions. [2021-11-05 17:22:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 17:22:15,108 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 [2021-11-05 17:22:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:22:15,340 INFO L225 Difference]: With dead ends: 122338 [2021-11-05 17:22:15,340 INFO L226 Difference]: Without dead ends: 122326 [2021-11-05 17:22:15,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 614.29ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-05 17:22:15,385 INFO L933 BasicCegarLoop]: 19525 mSDtfsCounter, 116752 mSDsluCounter, 87830 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 243.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 116752 SdHoareTripleChecker+Valid, 107355 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 107.05ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 254.12ms IncrementalHoareTripleChecker+Time [2021-11-05 17:22:15,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116752 Valid, 107355 Invalid, 47 Unknown, 0 Unchecked, 107.05ms Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 254.12ms Time] [2021-11-05 17:22:15,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122326 states. [2021-11-05 17:22:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122326 to 40828. [2021-11-05 17:22:17,612 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) [2021-11-05 17:22:17,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40828 states to 40828 states and 58152 transitions. [2021-11-05 17:22:17,676 INFO L78 Accepts]: Start accepts. Automaton has 40828 states and 58152 transitions. Word has length 45 [2021-11-05 17:22:17,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:22:17,676 INFO L470 AbstractCegarLoop]: Abstraction has 40828 states and 58152 transitions. [2021-11-05 17:22:17,677 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) [2021-11-05 17:22:17,677 INFO L276 IsEmpty]: Start isEmpty. Operand 40828 states and 58152 transitions. [2021-11-05 17:22:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-05 17:22:17,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:22:17,682 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] [2021-11-05 17:22:17,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 17:22:17,682 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)] === [2021-11-05 17:22:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:22:17,682 INFO L85 PathProgramCache]: Analyzing trace with hash 867246282, now seen corresponding path program 1 times [2021-11-05 17:22:17,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:22:17,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609924026] [2021-11-05 17:22:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:22:17,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:22:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:22:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:22:17,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:22:17,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609924026] [2021-11-05 17:22:17,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609924026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:22:17,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:22:17,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:22:17,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560083670] [2021-11-05 17:22:17,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:22:17,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:22:17,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:22:17,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:22:17,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:22:17,960 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)