./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-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.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 abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 21:58:19,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 21:58:20,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 21:58:20,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 21:58:20,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 21:58:20,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 21:58:20,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 21:58:20,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 21:58:20,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 21:58:20,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 21:58:20,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 21:58:20,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 21:58:20,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 21:58:20,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 21:58:20,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 21:58:20,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 21:58:20,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 21:58:20,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 21:58:20,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 21:58:20,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 21:58:20,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 21:58:20,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 21:58:20,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 21:58:20,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 21:58:20,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 21:58:20,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 21:58:20,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 21:58:20,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 21:58:20,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 21:58:20,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 21:58:20,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 21:58:20,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 21:58:20,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 21:58:20,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 21:58:20,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 21:58:20,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 21:58:20,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 21:58:20,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 21:58:20,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 21:58:20,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 21:58:20,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 21:58:20,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 21:58:20,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 21:58:20,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 21:58:20,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 21:58:20,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 21:58:20,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 21:58:20,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 21:58:20,123 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 21:58:20,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 21:58:20,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 21:58:20,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 21:58:20,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 21:58:20,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 21:58:20,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 21:58:20,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 21:58:20,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 21:58:20,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 21:58:20,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 21:58:20,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 21:58:20,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 21:58:20,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:58:20,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 21:58:20,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 21:58:20,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 21:58:20,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 21:58:20,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 21:58:20,127 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 21:58:20,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 21:58:20,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 21:58:20,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 21:58:20,128 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 [2021-11-05 21:58:20,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 21:58:20,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 21:58:20,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 21:58:20,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 21:58:20,463 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 21:58:20,464 INFO L432 ainManager$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-net-ethernet-amd-pcnet32.cil.i [2021-11-05 21:58:20,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f44bd5f/40b2edb962d94ac8b36b9d488a415e6e/FLAG44f5de227 [2021-11-05 21:58:21,366 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 21:58:21,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-05 21:58:21,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f44bd5f/40b2edb962d94ac8b36b9d488a415e6e/FLAG44f5de227 [2021-11-05 21:58:21,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f44bd5f/40b2edb962d94ac8b36b9d488a415e6e [2021-11-05 21:58:21,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 21:58:21,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 21:58:21,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 21:58:21,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 21:58:21,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 21:58:21,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:58:21" (1/1) ... [2021-11-05 21:58:21,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa6aeb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:21, skipping insertion in model container [2021-11-05 21:58:21,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:58:21" (1/1) ... [2021-11-05 21:58:21,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 21:58:22,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 21:58:24,710 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-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-05 21:58:24,713 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-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-05 21:58:24,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:58:24,786 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 21:58:25,152 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-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-11-05 21:58:25,153 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-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-11-05 21:58:25,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:58:25,371 INFO L208 MainTranslator]: Completed translation [2021-11-05 21:58:25,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25 WrapperNode [2021-11-05 21:58:25,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 21:58:25,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 21:58:25,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 21:58:25,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 21:58:25,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:25,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:27,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 21:58:27,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 21:58:27,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 21:58:27,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 21:58:27,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:27,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:28,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:28,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:29,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:29,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:29,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:29,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 21:58:29,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 21:58:29,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 21:58:29,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 21:58:29,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (1/1) ... [2021-11-05 21:58:29,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:58:29,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 21:58:29,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 21:58:29,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 21:58:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 21:58:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 21:58:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 21:58:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 21:58:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 21:58:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 21:58:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 21:58:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 21:58:29,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 21:58:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 21:58:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 21:58:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 21:58:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 21:58:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 21:58:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 21:58:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 21:58:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 21:59:57,817 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 21:59:57,818 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 21:59:57,818 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,818 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,818 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,818 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,819 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,819 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,819 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,820 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 21:59:57,820 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 21:59:57,820 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-05 21:59:57,821 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 21:59:57,824 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 21:59:57,825 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 21:59:57,826 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 21:59:57,878 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 21:59:57,879 INFO L299 CfgBuilder]: Removed 18514 assume(true) statements. [2021-11-05 21:59:57,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:59:57 BoogieIcfgContainer [2021-11-05 21:59:57,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 21:59:57,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 21:59:57,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 21:59:57,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 21:59:57,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:58:21" (1/3) ... [2021-11-05 21:59:57,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d5534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:59:57, skipping insertion in model container [2021-11-05 21:59:57,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:58:25" (2/3) ... [2021-11-05 21:59:57,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d5534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:59:57, skipping insertion in model container [2021-11-05 21:59:57,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:59:57" (3/3) ... [2021-11-05 21:59:57,898 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-05 21:59:57,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 21:59:57,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2021-11-05 21:59:57,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 21:59:58,005 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 21:59:58,006 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-11-05 21:59:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 12060 states, 12034 states have (on average 1.3249127472162208) internal successors, (15944), 12059 states have internal predecessors, (15944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:59:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 21:59:58,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:59:58,494 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] [2021-11-05 21:59:58,495 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 21:59:58,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:59:58,504 INFO L85 PathProgramCache]: Analyzing trace with hash -918786885, now seen corresponding path program 1 times [2021-11-05 21:59:58,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:59:58,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84959828] [2021-11-05 21:59:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:59:58,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:59:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:59:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:59:59,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:59:59,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84959828] [2021-11-05 21:59:59,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84959828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:59:59,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:59:59,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:59:59,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718018053] [2021-11-05 21:59:59,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:59:59,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:59:59,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:59:59,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:59:59,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:59:59,380 INFO L87 Difference]: Start difference. First operand has 12060 states, 12034 states have (on average 1.3249127472162208) internal successors, (15944), 12059 states have internal predecessors, (15944), 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 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:01,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:00:02,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:02,708 INFO L93 Difference]: Finished difference Result 29606 states and 39168 transitions. [2021-11-05 22:00:02,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:02,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-05 22:00:02,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:02,810 INFO L225 Difference]: With dead ends: 29606 [2021-11-05 22:00:02,810 INFO L226 Difference]: Without dead ends: 16193 [2021-11-05 22:00:02,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:02,859 INFO L933 BasicCegarLoop]: 15714 mSDtfsCounter, 7446 mSDsluCounter, 15674 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2509.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7446 SdHoareTripleChecker+Valid, 31388 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.44ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2728.51ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:02,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7446 Valid, 31388 Invalid, 100 Unknown, 0 Unchecked, 62.44ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2728.51ms Time] [2021-11-05 22:00:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16193 states. [2021-11-05 22:00:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16193 to 16157. [2021-11-05 22:00:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16157 states, 16131 states have (on average 1.3032050089889033) internal successors, (21022), 16156 states have internal predecessors, (21022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16157 states to 16157 states and 21022 transitions. [2021-11-05 22:00:03,370 INFO L78 Accepts]: Start accepts. Automaton has 16157 states and 21022 transitions. Word has length 89 [2021-11-05 22:00:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:03,371 INFO L470 AbstractCegarLoop]: Abstraction has 16157 states and 21022 transitions. [2021-11-05 22:00:03,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:03,373 INFO L276 IsEmpty]: Start isEmpty. Operand 16157 states and 21022 transitions. [2021-11-05 22:00:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 22:00:03,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:03,382 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] [2021-11-05 22:00:03,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 22:00:03,382 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)] === [2021-11-05 22:00:03,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:03,384 INFO L85 PathProgramCache]: Analyzing trace with hash -37629154, now seen corresponding path program 1 times [2021-11-05 22:00:03,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:03,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673096768] [2021-11-05 22:00:03,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:03,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:00:03,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:03,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673096768] [2021-11-05 22:00:03,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673096768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:03,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:03,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:00:03,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529371003] [2021-11-05 22:00:03,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:03,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:03,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:03,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:03,725 INFO L87 Difference]: Start difference. First operand 16157 states and 21022 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:05,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:00:07,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:07,416 INFO L93 Difference]: Finished difference Result 42539 states and 55417 transitions. [2021-11-05 22:00:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:07,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-05 22:00:07,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:07,524 INFO L225 Difference]: With dead ends: 42539 [2021-11-05 22:00:07,526 INFO L226 Difference]: Without dead ends: 26490 [2021-11-05 22:00:07,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:07,569 INFO L933 BasicCegarLoop]: 14489 mSDtfsCounter, 10742 mSDsluCounter, 14226 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2496.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10742 SdHoareTripleChecker+Valid, 28715 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.87ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2694.53ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:07,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10742 Valid, 28715 Invalid, 112 Unknown, 0 Unchecked, 44.87ms Time], IncrementalHoareTripleChecker [9 Valid, 102 Invalid, 1 Unknown, 0 Unchecked, 2694.53ms Time] [2021-11-05 22:00:07,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26490 states. [2021-11-05 22:00:08,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26490 to 26148. [2021-11-05 22:00:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26148 states, 26122 states have (on average 1.3062935456703162) internal successors, (34123), 26147 states have internal predecessors, (34123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26148 states to 26148 states and 34123 transitions. [2021-11-05 22:00:08,402 INFO L78 Accepts]: Start accepts. Automaton has 26148 states and 34123 transitions. Word has length 101 [2021-11-05 22:00:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:08,403 INFO L470 AbstractCegarLoop]: Abstraction has 26148 states and 34123 transitions. [2021-11-05 22:00:08,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 26148 states and 34123 transitions. [2021-11-05 22:00:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-05 22:00:08,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:08,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:00:08,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 22:00:08,417 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 22:00:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash 436110901, now seen corresponding path program 1 times [2021-11-05 22:00:08,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:08,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881996339] [2021-11-05 22:00:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:08,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:00:08,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:08,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881996339] [2021-11-05 22:00:08,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881996339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:08,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:08,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 22:00:08,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202931014] [2021-11-05 22:00:08,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:08,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:08,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:08,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:08,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:08,792 INFO L87 Difference]: Start difference. First operand 26148 states and 34123 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:11,626 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 [] [2021-11-05 22:00:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:13,733 INFO L93 Difference]: Finished difference Result 78078 states and 101941 transitions. [2021-11-05 22:00:13,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:13,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 130 [2021-11-05 22:00:13,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:13,921 INFO L225 Difference]: With dead ends: 78078 [2021-11-05 22:00:13,922 INFO L226 Difference]: Without dead ends: 52038 [2021-11-05 22:00:13,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:13,995 INFO L933 BasicCegarLoop]: 18106 mSDtfsCounter, 14363 mSDsluCounter, 14360 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3875.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14363 SdHoareTripleChecker+Valid, 32466 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3971.25ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:13,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14363 Valid, 32466 Invalid, 39 Unknown, 0 Unchecked, 37.03ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 3971.25ms Time] [2021-11-05 22:00:14,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52038 states. [2021-11-05 22:00:15,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52038 to 51914. [2021-11-05 22:00:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51914 states, 51888 states have (on average 1.3071423065063212) internal successors, (67825), 51913 states have internal predecessors, (67825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51914 states to 51914 states and 67825 transitions. [2021-11-05 22:00:15,550 INFO L78 Accepts]: Start accepts. Automaton has 51914 states and 67825 transitions. Word has length 130 [2021-11-05 22:00:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:15,553 INFO L470 AbstractCegarLoop]: Abstraction has 51914 states and 67825 transitions. [2021-11-05 22:00:15,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 51914 states and 67825 transitions. [2021-11-05 22:00:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-05 22:00:15,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:15,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:00:15,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 22:00:15,565 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 22:00:15,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:15,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1697028151, now seen corresponding path program 1 times [2021-11-05 22:00:15,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:15,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25177665] [2021-11-05 22:00:15,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:15,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:00:16,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:16,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25177665] [2021-11-05 22:00:16,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25177665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:16,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:16,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:00:16,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929642484] [2021-11-05 22:00:16,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:16,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:16,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:16,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:16,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:16,007 INFO L87 Difference]: Start difference. First operand 51914 states and 67825 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:18,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:00:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:19,575 INFO L93 Difference]: Finished difference Result 118050 states and 154375 transitions. [2021-11-05 22:00:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:19,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2021-11-05 22:00:19,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:19,751 INFO L225 Difference]: With dead ends: 118050 [2021-11-05 22:00:19,751 INFO L226 Difference]: Without dead ends: 66244 [2021-11-05 22:00:19,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:19,855 INFO L933 BasicCegarLoop]: 21023 mSDtfsCounter, 6529 mSDsluCounter, 14430 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2330.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6529 SdHoareTripleChecker+Valid, 35453 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.39ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2483.09ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:19,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6529 Valid, 35453 Invalid, 86 Unknown, 0 Unchecked, 21.39ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2483.09ms Time] [2021-11-05 22:00:19,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66244 states. [2021-11-05 22:00:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66244 to 66196. [2021-11-05 22:00:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66196 states, 66170 states have (on average 1.3084328245428443) internal successors, (86579), 66195 states have internal predecessors, (86579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66196 states to 66196 states and 86579 transitions. [2021-11-05 22:00:21,524 INFO L78 Accepts]: Start accepts. Automaton has 66196 states and 86579 transitions. Word has length 130 [2021-11-05 22:00:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:21,524 INFO L470 AbstractCegarLoop]: Abstraction has 66196 states and 86579 transitions. [2021-11-05 22:00:21,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 66196 states and 86579 transitions. [2021-11-05 22:00:21,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-05 22:00:21,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:21,535 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:00:21,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 22:00:21,536 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 22:00:21,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1318979706, now seen corresponding path program 1 times [2021-11-05 22:00:21,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:21,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870809015] [2021-11-05 22:00:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:21,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 22:00:22,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:22,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870809015] [2021-11-05 22:00:22,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870809015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:22,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:22,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:00:22,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728888464] [2021-11-05 22:00:22,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:22,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:22,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:22,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:22,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:22,028 INFO L87 Difference]: Start difference. First operand 66196 states and 86579 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:24,108 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 [] [2021-11-05 22:00:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:25,780 INFO L93 Difference]: Finished difference Result 146598 states and 191851 transitions. [2021-11-05 22:00:25,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:25,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 167 [2021-11-05 22:00:25,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:25,992 INFO L225 Difference]: With dead ends: 146598 [2021-11-05 22:00:25,993 INFO L226 Difference]: Without dead ends: 80510 [2021-11-05 22:00:26,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:26,149 INFO L933 BasicCegarLoop]: 21023 mSDtfsCounter, 6528 mSDsluCounter, 14443 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2338.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6528 SdHoareTripleChecker+Valid, 35466 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.73ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2498.40ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:26,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6528 Valid, 35466 Invalid, 79 Unknown, 0 Unchecked, 22.73ms Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2498.40ms Time] [2021-11-05 22:00:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80510 states. [2021-11-05 22:00:27,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80510 to 80462. [2021-11-05 22:00:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80462 states, 80436 states have (on average 1.3093266696504053) internal successors, (105317), 80461 states have internal predecessors, (105317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80462 states to 80462 states and 105317 transitions. [2021-11-05 22:00:28,113 INFO L78 Accepts]: Start accepts. Automaton has 80462 states and 105317 transitions. Word has length 167 [2021-11-05 22:00:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:28,113 INFO L470 AbstractCegarLoop]: Abstraction has 80462 states and 105317 transitions. [2021-11-05 22:00:28,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 80462 states and 105317 transitions. [2021-11-05 22:00:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-05 22:00:28,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:28,125 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:00:28,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 22:00:28,125 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 22:00:28,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1672068088, now seen corresponding path program 1 times [2021-11-05 22:00:28,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:28,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815723261] [2021-11-05 22:00:28,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:28,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 22:00:28,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:28,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815723261] [2021-11-05 22:00:28,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815723261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:28,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:28,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:00:28,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681247425] [2021-11-05 22:00:28,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:28,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:28,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:28,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:28,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:28,378 INFO L87 Difference]: Start difference. First operand 80462 states and 105317 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:30,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:00:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:32,545 INFO L93 Difference]: Finished difference Result 175142 states and 229351 transitions. [2021-11-05 22:00:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:32,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 167 [2021-11-05 22:00:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:32,718 INFO L225 Difference]: With dead ends: 175142 [2021-11-05 22:00:32,718 INFO L226 Difference]: Without dead ends: 94788 [2021-11-05 22:00:32,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:32,828 INFO L933 BasicCegarLoop]: 21023 mSDtfsCounter, 8828 mSDsluCounter, 12146 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2483.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8828 SdHoareTripleChecker+Valid, 33169 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.18ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2667.26ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:32,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8828 Valid, 33169 Invalid, 85 Unknown, 0 Unchecked, 21.18ms Time], IncrementalHoareTripleChecker [16 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2667.26ms Time] [2021-11-05 22:00:32,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94788 states. [2021-11-05 22:00:34,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94788 to 94740. [2021-11-05 22:00:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94740 states, 94714 states have (on average 1.3099119454357329) internal successors, (124067), 94739 states have internal predecessors, (124067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94740 states to 94740 states and 124067 transitions. [2021-11-05 22:00:35,061 INFO L78 Accepts]: Start accepts. Automaton has 94740 states and 124067 transitions. Word has length 167 [2021-11-05 22:00:35,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:35,061 INFO L470 AbstractCegarLoop]: Abstraction has 94740 states and 124067 transitions. [2021-11-05 22:00:35,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:35,062 INFO L276 IsEmpty]: Start isEmpty. Operand 94740 states and 124067 transitions. [2021-11-05 22:00:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-05 22:00:35,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:35,073 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:00:35,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 22:00:35,073 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 22:00:35,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:35,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1733662153, now seen corresponding path program 1 times [2021-11-05 22:00:35,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:35,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414610633] [2021-11-05 22:00:35,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:35,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:35,370 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 22:00:35,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:35,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414610633] [2021-11-05 22:00:35,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414610633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:35,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:35,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:00:35,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273539921] [2021-11-05 22:00:35,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:35,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:35,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:35,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:35,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:35,372 INFO L87 Difference]: Start difference. First operand 94740 states and 124067 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:37,442 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 [] [2021-11-05 22:00:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:39,744 INFO L93 Difference]: Finished difference Result 203690 states and 266835 transitions. [2021-11-05 22:00:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:39,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 203 [2021-11-05 22:00:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:39,974 INFO L225 Difference]: With dead ends: 203690 [2021-11-05 22:00:39,975 INFO L226 Difference]: Without dead ends: 109058 [2021-11-05 22:00:40,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:40,106 INFO L933 BasicCegarLoop]: 21023 mSDtfsCounter, 6531 mSDsluCounter, 14441 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2342.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6531 SdHoareTripleChecker+Valid, 35464 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.76ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2513.46ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:40,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6531 Valid, 35464 Invalid, 81 Unknown, 0 Unchecked, 20.76ms Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2513.46ms Time] [2021-11-05 22:00:40,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109058 states. [2021-11-05 22:00:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109058 to 109010. [2021-11-05 22:00:42,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109010 states, 108984 states have (on average 1.3103666593261396) internal successors, (142809), 109009 states have internal predecessors, (142809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:42,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109010 states to 109010 states and 142809 transitions. [2021-11-05 22:00:42,602 INFO L78 Accepts]: Start accepts. Automaton has 109010 states and 142809 transitions. Word has length 203 [2021-11-05 22:00:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:42,602 INFO L470 AbstractCegarLoop]: Abstraction has 109010 states and 142809 transitions. [2021-11-05 22:00:42,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 109010 states and 142809 transitions. [2021-11-05 22:00:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-05 22:00:42,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:42,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:00:42,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 22:00:42,615 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 22:00:42,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:42,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1380573771, now seen corresponding path program 1 times [2021-11-05 22:00:42,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:42,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454388900] [2021-11-05 22:00:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:42,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 22:00:42,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:42,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454388900] [2021-11-05 22:00:42,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454388900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:42,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:42,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:00:42,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105497033] [2021-11-05 22:00:42,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:42,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:42,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:42,903 INFO L87 Difference]: Start difference. First operand 109010 states and 142809 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:44,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:00:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:00:47,823 INFO L93 Difference]: Finished difference Result 232234 states and 304327 transitions. [2021-11-05 22:00:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:00:47,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 203 [2021-11-05 22:00:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:00:48,061 INFO L225 Difference]: With dead ends: 232234 [2021-11-05 22:00:48,061 INFO L226 Difference]: Without dead ends: 123332 [2021-11-05 22:00:48,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:48,173 INFO L933 BasicCegarLoop]: 21023 mSDtfsCounter, 6540 mSDsluCounter, 14433 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2339.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6540 SdHoareTripleChecker+Valid, 35456 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.01ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2526.93ms IncrementalHoareTripleChecker+Time [2021-11-05 22:00:48,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6540 Valid, 35456 Invalid, 83 Unknown, 0 Unchecked, 22.01ms Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 2526.93ms Time] [2021-11-05 22:00:48,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123332 states. [2021-11-05 22:00:50,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123332 to 123284. [2021-11-05 22:00:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123284 states, 123258 states have (on average 1.3107059987992666) internal successors, (161555), 123283 states have internal predecessors, (161555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:50,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123284 states to 123284 states and 161555 transitions. [2021-11-05 22:00:50,777 INFO L78 Accepts]: Start accepts. Automaton has 123284 states and 161555 transitions. Word has length 203 [2021-11-05 22:00:50,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:00:50,778 INFO L470 AbstractCegarLoop]: Abstraction has 123284 states and 161555 transitions. [2021-11-05 22:00:50,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 22:00:50,779 INFO L276 IsEmpty]: Start isEmpty. Operand 123284 states and 161555 transitions. [2021-11-05 22:00:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-05 22:00:50,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:00:50,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:00:50,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 22:00:50,791 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-05 22:00:50,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:00:50,792 INFO L85 PathProgramCache]: Analyzing trace with hash 315021162, now seen corresponding path program 1 times [2021-11-05 22:00:50,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:00:50,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038285045] [2021-11-05 22:00:50,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:00:50,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:00:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:00:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:00:51,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:00:51,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038285045] [2021-11-05 22:00:51,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038285045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:00:51,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:00:51,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 22:00:51,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234138520] [2021-11-05 22:00:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:00:51,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:00:51,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:00:51,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:00:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:00:51,091 INFO L87 Difference]: Start difference. First operand 123284 states and 161555 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 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)