./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 11:48:31,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 11:48:31,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 11:48:31,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 11:48:31,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 11:48:31,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 11:48:31,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 11:48:31,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 11:48:31,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 11:48:31,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 11:48:31,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 11:48:31,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 11:48:31,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 11:48:31,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 11:48:31,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 11:48:31,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 11:48:31,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 11:48:31,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 11:48:31,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 11:48:31,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 11:48:31,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 11:48:31,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 11:48:31,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 11:48:31,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 11:48:31,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 11:48:31,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 11:48:31,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 11:48:31,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 11:48:31,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 11:48:31,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 11:48:31,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 11:48:31,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 11:48:31,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 11:48:31,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 11:48:31,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 11:48:31,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 11:48:31,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 11:48:31,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 11:48:31,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 11:48:31,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 11:48:31,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 11:48:31,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 11:48:31,893 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 11:48:31,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 11:48:31,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 11:48:31,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 11:48:31,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 11:48:31,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 11:48:31,895 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 11:48:31,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 11:48:31,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 11:48:31,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 11:48:31,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 11:48:31,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 11:48:31,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 11:48:31,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 11:48:31,897 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 11:48:31,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 11:48:31,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 11:48:31,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 11:48:31,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 11:48:31,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 11:48:31,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 11:48:31,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 11:48:31,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 11:48:31,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 11:48:31,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 11:48:31,898 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 11:48:31,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 11:48:31,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 11:48:31,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 11:48:31,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 [2021-11-04 11:48:32,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 11:48:32,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 11:48:32,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 11:48:32,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 11:48:32,099 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 11:48:32,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-04 11:48:32,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7154ca850/8745f2277634467bbfdf04e5104460de/FLAG4be281de4 [2021-11-04 11:48:32,724 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 11:48:32,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-04 11:48:32,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7154ca850/8745f2277634467bbfdf04e5104460de/FLAG4be281de4 [2021-11-04 11:48:32,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7154ca850/8745f2277634467bbfdf04e5104460de [2021-11-04 11:48:32,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 11:48:32,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 11:48:32,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 11:48:32,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 11:48:32,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 11:48:32,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:48:32" (1/1) ... [2021-11-04 11:48:32,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de721cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:32, skipping insertion in model container [2021-11-04 11:48:32,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 11:48:32" (1/1) ... [2021-11-04 11:48:32,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 11:48:32,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 11:48:34,172 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-04 11:48:34,175 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-04 11:48:34,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 11:48:34,211 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 11:48:34,434 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-04 11:48:34,435 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-04 11:48:34,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 11:48:34,518 INFO L208 MainTranslator]: Completed translation [2021-11-04 11:48:34,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34 WrapperNode [2021-11-04 11:48:34,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 11:48:34,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 11:48:34,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 11:48:34,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 11:48:34,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:34,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:34,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 11:48:34,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 11:48:34,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 11:48:34,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 11:48:34,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:34,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:34,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:34,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:35,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:35,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:35,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:35,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 11:48:35,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 11:48:35,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 11:48:35,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 11:48:35,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (1/1) ... [2021-11-04 11:48:35,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 11:48:35,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 11:48:35,336 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) [2021-11-04 11:48:35,357 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 [2021-11-04 11:48:35,369 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-04 11:48:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 11:48:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 11:48:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 11:48:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 11:48:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 11:48:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 11:48:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 11:48:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 11:48:35,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 11:48:35,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 11:48:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 11:48:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 11:48:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 11:48:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 11:48:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 11:48:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 11:48:48,781 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 11:48:48,781 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 11:48:48,781 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-04 11:48:48,781 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 11:48:48,782 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 11:48:48,782 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 11:48:48,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 11:48:48,802 INFO L299 CfgBuilder]: Removed 2043 assume(true) statements. [2021-11-04 11:48:48,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:48:48 BoogieIcfgContainer [2021-11-04 11:48:48,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 11:48:48,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 11:48:48,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 11:48:48,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 11:48:48,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 11:48:32" (1/3) ... [2021-11-04 11:48:48,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49527edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:48:48, skipping insertion in model container [2021-11-04 11:48:48,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 11:48:34" (2/3) ... [2021-11-04 11:48:48,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49527edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:48:48, skipping insertion in model container [2021-11-04 11:48:48,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:48:48" (3/3) ... [2021-11-04 11:48:48,814 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-04 11:48:48,820 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 11:48:48,820 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2021-11-04 11:48:48,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 11:48:48,873 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 [2021-11-04 11:48:48,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-11-04 11:48:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 2466 states, 2440 states have (on average 1.4254098360655738) internal successors, (3478), 2465 states have internal predecessors, (3478), 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) [2021-11-04 11:48:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-04 11:48:48,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:48:48,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:48:48,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 11:48:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:48:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash 949678794, now seen corresponding path program 1 times [2021-11-04 11:48:48,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:48:48,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305519946] [2021-11-04 11:48:48,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:48:48,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:48:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:48:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:48:49,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:48:49,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305519946] [2021-11-04 11:48:49,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305519946] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:48:49,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:48:49,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:48:49,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738489445] [2021-11-04 11:48:49,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:48:49,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:48:49,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:48:49,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:48:49,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:48:49,702 INFO L87 Difference]: Start difference. First operand has 2466 states, 2440 states have (on average 1.4254098360655738) internal successors, (3478), 2465 states have internal predecessors, (3478), 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 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-04 11:48:51,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:03,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:15,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:19,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:22,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:25,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:26,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:29,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:36,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:40,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:41,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:43,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:50,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:49:55,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:02,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:05,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:14,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:17,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:50:18,669 INFO L93 Difference]: Finished difference Result 5695 states and 8054 transitions. [2021-11-04 11:50:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:50:18,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2021-11-04 11:50:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:50:18,701 INFO L225 Difference]: With dead ends: 5695 [2021-11-04 11:50:18,701 INFO L226 Difference]: Without dead ends: 3117 [2021-11-04 11:50:18,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.07ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:50:18,713 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 1496 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 6055 mSolverCounterSat, 16 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84638.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 6079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.90ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 6055 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88198.76ms IncrementalHoareTripleChecker+Time [2021-11-04 11:50:18,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 318 Invalid, 6079 Unknown, 0 Unchecked, 67.90ms Time], IncrementalHoareTripleChecker [16 Valid, 6055 Invalid, 8 Unknown, 0 Unchecked, 88198.76ms Time] [2021-11-04 11:50:18,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2021-11-04 11:50:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3091. [2021-11-04 11:50:18,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3091 states, 3065 states have (on average 1.3494290375203915) internal successors, (4136), 3090 states have internal predecessors, (4136), 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) [2021-11-04 11:50:18,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4136 transitions. [2021-11-04 11:50:18,827 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4136 transitions. Word has length 93 [2021-11-04 11:50:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:50:18,828 INFO L470 AbstractCegarLoop]: Abstraction has 3091 states and 4136 transitions. [2021-11-04 11:50:18,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-04 11:50:18,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4136 transitions. [2021-11-04 11:50:18,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-04 11:50:18,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:50:18,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:50:18,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 11:50:18,834 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 11:50:18,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:50:18,834 INFO L85 PathProgramCache]: Analyzing trace with hash 591792664, now seen corresponding path program 1 times [2021-11-04 11:50:18,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:50:18,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988284392] [2021-11-04 11:50:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:50:18,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:50:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:50:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:50:19,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:50:19,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988284392] [2021-11-04 11:50:19,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988284392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:50:19,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:50:19,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:50:19,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008477356] [2021-11-04 11:50:19,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:50:19,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:50:19,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:50:19,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:50:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:50:19,200 INFO L87 Difference]: Start difference. First operand 3091 states and 4136 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-04 11:50:21,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:44,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:46,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:48,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:50:49,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:00,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:03,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:05,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:07,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:12,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:14,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:16,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:18,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:21,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:25,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:27,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:37,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:42,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:55,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:57,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:51:59,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:02,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:52:02,679 INFO L93 Difference]: Finished difference Result 8655 states and 11646 transitions. [2021-11-04 11:52:02,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:52:02,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2021-11-04 11:52:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:52:02,709 INFO L225 Difference]: With dead ends: 8655 [2021-11-04 11:52:02,709 INFO L226 Difference]: Without dead ends: 5720 [2021-11-04 11:52:02,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:52:02,715 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2409 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 5660 mSolverCounterSat, 7 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99102.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.65ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5660 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102903.63ms IncrementalHoareTripleChecker+Time [2021-11-04 11:52:02,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 0 Invalid, 5677 Unknown, 0 Unchecked, 45.65ms Time], IncrementalHoareTripleChecker [7 Valid, 5660 Invalid, 10 Unknown, 0 Unchecked, 102903.63ms Time] [2021-11-04 11:52:02,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2021-11-04 11:52:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5660. [2021-11-04 11:52:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5634 states have (on average 1.3558750443734469) internal successors, (7639), 5659 states have internal predecessors, (7639), 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) [2021-11-04 11:52:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 7639 transitions. [2021-11-04 11:52:02,843 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 7639 transitions. Word has length 99 [2021-11-04 11:52:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:52:02,845 INFO L470 AbstractCegarLoop]: Abstraction has 5660 states and 7639 transitions. [2021-11-04 11:52:02,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-04 11:52:02,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 7639 transitions. [2021-11-04 11:52:02,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-04 11:52:02,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:52:02,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:52:02,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 11:52:02,852 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 11:52:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:52:02,853 INFO L85 PathProgramCache]: Analyzing trace with hash -88800783, now seen corresponding path program 1 times [2021-11-04 11:52:02,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:52:02,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586921450] [2021-11-04 11:52:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:52:02,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:52:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:52:03,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:52:03,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:52:03,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586921450] [2021-11-04 11:52:03,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586921450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:52:03,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:52:03,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:52:03,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716068037] [2021-11-04 11:52:03,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:52:03,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:52:03,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:52:03,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:52:03,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:52:03,201 INFO L87 Difference]: Start difference. First operand 5660 states and 7639 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 11:52:05,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:18,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:27,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:29,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:32,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:33,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:35,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:37,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:43,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:46,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:53,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:55,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:52:58,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:00,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:03,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:06,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:08,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:11,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:12,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:16,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:18,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:21,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:23,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:25,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:27,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:30,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:35,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:37,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:49,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:52,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:54,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:56,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:53:57,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:53:57,737 INFO L93 Difference]: Finished difference Result 15688 states and 21297 transitions. [2021-11-04 11:53:57,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:53:57,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-04 11:53:57,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:53:57,767 INFO L225 Difference]: With dead ends: 15688 [2021-11-04 11:53:57,767 INFO L226 Difference]: Without dead ends: 10184 [2021-11-04 11:53:57,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:53:57,780 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2281 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 5660 mSolverCounterSat, 12 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110032.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.55ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5660 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113904.96ms IncrementalHoareTripleChecker+Time [2021-11-04 11:53:57,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2281 Valid, 0 Invalid, 5689 Unknown, 0 Unchecked, 34.55ms Time], IncrementalHoareTripleChecker [12 Valid, 5660 Invalid, 17 Unknown, 0 Unchecked, 113904.96ms Time] [2021-11-04 11:53:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10184 states. [2021-11-04 11:53:57,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10184 to 10102. [2021-11-04 11:53:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10102 states, 10076 states have (on average 1.3635371179039302) internal successors, (13739), 10101 states have internal predecessors, (13739), 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) [2021-11-04 11:53:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10102 states to 10102 states and 13739 transitions. [2021-11-04 11:53:57,957 INFO L78 Accepts]: Start accepts. Automaton has 10102 states and 13739 transitions. Word has length 108 [2021-11-04 11:53:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:53:57,958 INFO L470 AbstractCegarLoop]: Abstraction has 10102 states and 13739 transitions. [2021-11-04 11:53:57,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 11:53:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 10102 states and 13739 transitions. [2021-11-04 11:53:57,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-04 11:53:57,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:53:57,967 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:53:57,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 11:53:57,970 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 11:53:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:53:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1652114132, now seen corresponding path program 1 times [2021-11-04 11:53:57,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:53:57,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504710492] [2021-11-04 11:53:57,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:53:57,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:53:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:53:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:53:58,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:53:58,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504710492] [2021-11-04 11:53:58,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504710492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:53:58,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:53:58,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:53:58,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029004874] [2021-11-04 11:53:58,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:53:58,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:53:58,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:53:58,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:53:58,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:53:58,275 INFO L87 Difference]: Start difference. First operand 10102 states and 13739 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2021-11-04 11:54:00,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:08,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:10,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:12,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:15,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:20,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:25,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:27,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:29,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:33,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:39,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:42,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:43,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:45,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:49,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:53,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:54:59,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:01,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:04,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:07,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:16,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:24,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:46,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:49,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:51,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:54,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:57,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:55:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:55:58,702 INFO L93 Difference]: Finished difference Result 29898 states and 40743 transitions. [2021-11-04 11:55:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:55:58,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2021-11-04 11:55:58,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:55:58,793 INFO L225 Difference]: With dead ends: 29898 [2021-11-04 11:55:58,794 INFO L226 Difference]: Without dead ends: 19952 [2021-11-04 11:55:58,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:55:58,812 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2582 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 6980 mSolverCounterSat, 4 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115044.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.57ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6980 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119526.74ms IncrementalHoareTripleChecker+Time [2021-11-04 11:55:58,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2582 Valid, 0 Invalid, 6996 Unknown, 0 Unchecked, 40.57ms Time], IncrementalHoareTripleChecker [4 Valid, 6980 Invalid, 12 Unknown, 0 Unchecked, 119526.74ms Time] [2021-11-04 11:55:58,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19952 states. [2021-11-04 11:55:59,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19952 to 19864. [2021-11-04 11:55:59,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19864 states, 19838 states have (on average 1.365712269381994) internal successors, (27093), 19863 states have internal predecessors, (27093), 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) [2021-11-04 11:55:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19864 states to 19864 states and 27093 transitions. [2021-11-04 11:55:59,144 INFO L78 Accepts]: Start accepts. Automaton has 19864 states and 27093 transitions. Word has length 110 [2021-11-04 11:55:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:55:59,145 INFO L470 AbstractCegarLoop]: Abstraction has 19864 states and 27093 transitions. [2021-11-04 11:55:59,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2021-11-04 11:55:59,146 INFO L276 IsEmpty]: Start isEmpty. Operand 19864 states and 27093 transitions. [2021-11-04 11:55:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-04 11:55:59,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:55:59,150 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:55:59,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 11:55:59,151 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 11:55:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:55:59,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1415452834, now seen corresponding path program 1 times [2021-11-04 11:55:59,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:55:59,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428163043] [2021-11-04 11:55:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:55:59,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:55:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:55:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:55:59,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:55:59,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428163043] [2021-11-04 11:55:59,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428163043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:55:59,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:55:59,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:55:59,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807026767] [2021-11-04 11:55:59,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:55:59,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:55:59,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:55:59,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:55:59,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:55:59,564 INFO L87 Difference]: Start difference. First operand 19864 states and 27093 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 11:56:01,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:10,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:12,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:21,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:27,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:30,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:34,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:36,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:39,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:44,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:46,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:51,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:53,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:55,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:56:57,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:00,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:09,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:14,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:16,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:18,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:22,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:24,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:26,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:28,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:31,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:57:44,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:58:00,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:58:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:58:09,060 INFO L93 Difference]: Finished difference Result 58542 states and 80074 transitions. [2021-11-04 11:58:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:58:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-04 11:58:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:58:09,170 INFO L225 Difference]: With dead ends: 58542 [2021-11-04 11:58:09,170 INFO L226 Difference]: Without dead ends: 38834 [2021-11-04 11:58:09,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:58:09,208 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2559 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 7136 mSolverCounterSat, 6 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123328.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2559 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.42ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7136 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128407.10ms IncrementalHoareTripleChecker+Time [2021-11-04 11:58:09,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2559 Valid, 0 Invalid, 7158 Unknown, 0 Unchecked, 43.42ms Time], IncrementalHoareTripleChecker [6 Valid, 7136 Invalid, 16 Unknown, 0 Unchecked, 128407.10ms Time] [2021-11-04 11:58:09,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38834 states. [2021-11-04 11:58:09,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38834 to 38758. [2021-11-04 11:58:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38758 states, 38732 states have (on average 1.3686357533822162) internal successors, (53010), 38757 states have internal predecessors, (53010), 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) [2021-11-04 11:58:09,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38758 states to 38758 states and 53010 transitions. [2021-11-04 11:58:09,869 INFO L78 Accepts]: Start accepts. Automaton has 38758 states and 53010 transitions. Word has length 113 [2021-11-04 11:58:09,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:58:09,870 INFO L470 AbstractCegarLoop]: Abstraction has 38758 states and 53010 transitions. [2021-11-04 11:58:09,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 11:58:09,870 INFO L276 IsEmpty]: Start isEmpty. Operand 38758 states and 53010 transitions. [2021-11-04 11:58:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-04 11:58:09,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:58:09,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 11:58:09,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 11:58:09,873 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 11:58:09,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:58:09,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1522816006, now seen corresponding path program 1 times [2021-11-04 11:58:09,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:58:09,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484648764] [2021-11-04 11:58:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:58:09,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:58:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:58:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:58:10,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:58:10,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484648764] [2021-11-04 11:58:10,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484648764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:58:10,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:58:10,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:58:10,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448462020] [2021-11-04 11:58:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:58:10,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:58:10,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:58:10,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:58:10,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:58:10,278 INFO L87 Difference]: Start difference. First operand 38758 states and 53010 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-04 11:58:12,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:58:25,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:58:34,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:58:40,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:58:50,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:02,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:04,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:08,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:15,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:16,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:19,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:23,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:24,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:29,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:31,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:34,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:36,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:38,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:40,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:52,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:59:54,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:00,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:00,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:00:00,817 INFO L93 Difference]: Finished difference Result 105872 states and 145213 transitions. [2021-11-04 12:00:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:00:00,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-04 12:00:00,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:00:00,982 INFO L225 Difference]: With dead ends: 105872 [2021-11-04 12:00:00,983 INFO L226 Difference]: Without dead ends: 67270 [2021-11-04 12:00:01,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:00:01,059 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2160 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 5952 mSolverCounterSat, 12 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104441.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.36ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5952 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109166.84ms IncrementalHoareTripleChecker+Time [2021-11-04 12:00:01,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2160 Valid, 0 Invalid, 5978 Unknown, 0 Unchecked, 34.36ms Time], IncrementalHoareTripleChecker [12 Valid, 5952 Invalid, 14 Unknown, 0 Unchecked, 109166.84ms Time] [2021-11-04 12:00:01,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67270 states. [2021-11-04 12:00:02,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67270 to 67146. [2021-11-04 12:00:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67146 states, 67120 states have (on average 1.3705005959475567) internal successors, (91988), 67145 states have internal predecessors, (91988), 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) [2021-11-04 12:00:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67146 states to 67146 states and 91988 transitions. [2021-11-04 12:00:02,456 INFO L78 Accepts]: Start accepts. Automaton has 67146 states and 91988 transitions. Word has length 115 [2021-11-04 12:00:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:00:02,456 INFO L470 AbstractCegarLoop]: Abstraction has 67146 states and 91988 transitions. [2021-11-04 12:00:02,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-04 12:00:02,456 INFO L276 IsEmpty]: Start isEmpty. Operand 67146 states and 91988 transitions. [2021-11-04 12:00:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-04 12:00:02,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:00:02,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:00:02,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 12:00:02,464 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 12:00:02,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:00:02,465 INFO L85 PathProgramCache]: Analyzing trace with hash -355735077, now seen corresponding path program 1 times [2021-11-04 12:00:02,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:00:02,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029784565] [2021-11-04 12:00:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:00:02,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:00:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:00:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 12:00:02,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:00:02,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029784565] [2021-11-04 12:00:02,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029784565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:00:02,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:00:02,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:00:02,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379270074] [2021-11-04 12:00:02,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:00:02,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:00:02,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:00:02,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:00:02,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:00:02,784 INFO L87 Difference]: Start difference. First operand 67146 states and 91988 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-04 12:00:05,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:20,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:26,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:28,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:35,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:39,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:41,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:44,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:50,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:54,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:56,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:00:59,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:05,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:08,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:10,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:13,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:15,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:17,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:19,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:21,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:25,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:28,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:32,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:39,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:41,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:01:58,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:01,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:04,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 12:02:05,721 INFO L93 Difference]: Finished difference Result 130314 states and 178276 transitions. [2021-11-04 12:02:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 12:02:05,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2021-11-04 12:02:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 12:02:05,844 INFO L225 Difference]: With dead ends: 130314 [2021-11-04 12:02:05,845 INFO L226 Difference]: Without dead ends: 63324 [2021-11-04 12:02:05,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:02:05,901 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2354 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 5846 mSolverCounterSat, 7 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116301.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.95ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5846 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121326.93ms IncrementalHoareTripleChecker+Time [2021-11-04 12:02:05,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2354 Valid, 0 Invalid, 5870 Unknown, 0 Unchecked, 34.95ms Time], IncrementalHoareTripleChecker [7 Valid, 5846 Invalid, 17 Unknown, 0 Unchecked, 121326.93ms Time] [2021-11-04 12:02:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63324 states. [2021-11-04 12:02:06,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63324 to 63116. [2021-11-04 12:02:07,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63116 states, 63090 states have (on average 1.3649389760659376) internal successors, (86114), 63115 states have internal predecessors, (86114), 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) [2021-11-04 12:02:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63116 states to 63116 states and 86114 transitions. [2021-11-04 12:02:07,141 INFO L78 Accepts]: Start accepts. Automaton has 63116 states and 86114 transitions. Word has length 118 [2021-11-04 12:02:07,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 12:02:07,142 INFO L470 AbstractCegarLoop]: Abstraction has 63116 states and 86114 transitions. [2021-11-04 12:02:07,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-04 12:02:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 63116 states and 86114 transitions. [2021-11-04 12:02:07,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-04 12:02:07,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 12:02:07,152 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 12:02:07,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 12:02:07,152 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-04 12:02:07,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 12:02:07,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1202251336, now seen corresponding path program 1 times [2021-11-04 12:02:07,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 12:02:07,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584171106] [2021-11-04 12:02:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 12:02:07,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 12:02:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 12:02:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 12:02:07,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 12:02:07,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584171106] [2021-11-04 12:02:07,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584171106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 12:02:07,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 12:02:07,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 12:02:07,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687117621] [2021-11-04 12:02:07,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 12:02:07,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 12:02:07,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 12:02:07,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 12:02:07,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 12:02:07,454 INFO L87 Difference]: Start difference. First operand 63116 states and 86114 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2021-11-04 12:02:09,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:23,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:24,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:26,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:33,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:38,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:42,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:45,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:51,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 12:02:59,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15