/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:01:18,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:01:18,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:01:18,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:01:18,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:01:18,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:01:18,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:01:18,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:01:18,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:01:18,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:01:18,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:01:18,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:01:18,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:01:18,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:01:18,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:01:18,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:01:18,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:01:18,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:01:18,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:01:18,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:01:18,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:01:18,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:01:18,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:01:18,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:01:18,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 15:01:18,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:01:18,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:01:18,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:01:18,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:01:18,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:01:18,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:01:18,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:01:18,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:01:18,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:01:18,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:01:18,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:01:18,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:01:18,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:01:18,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:01:18,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:01:18,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:01:18,961 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:01:18,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:01:18,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:01:18,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:01:18,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:01:18,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:01:18,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:01:18,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:01:18,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:01:18,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:01:18,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:01:18,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:01:18,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:01:18,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:01:18,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:01:18,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:01:18,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:01:18,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:01:18,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:01:18,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:01:18,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:01:18,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:01:19,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:01:19,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:01:19,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:01:19,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:01:19,400 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:01:19,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2020-12-22 15:01:19,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842410e8e/afae96b337264cdf931c6e36715b9fa4/FLAG4799349d6 [2020-12-22 15:01:20,620 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:01:20,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2020-12-22 15:01:20,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842410e8e/afae96b337264cdf931c6e36715b9fa4/FLAG4799349d6 [2020-12-22 15:01:20,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842410e8e/afae96b337264cdf931c6e36715b9fa4 [2020-12-22 15:01:20,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:01:20,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:01:20,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:01:20,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:01:20,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:01:20,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:01:20" (1/1) ... [2020-12-22 15:01:20,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17706f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:20, skipping insertion in model container [2020-12-22 15:01:20,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:01:20" (1/1) ... [2020-12-22 15:01:20,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:01:21,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:01:24,088 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2020-12-22 15:01:24,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:01:24,291 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:01:24,850 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2020-12-22 15:01:24,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:01:25,463 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:01:25,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25 WrapperNode [2020-12-22 15:01:25,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:01:25,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:01:25,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:01:25,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:01:25,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:25,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:27,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:01:27,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:01:27,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:01:27,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:01:27,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:27,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:27,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:27,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:28,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:28,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:28,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... [2020-12-22 15:01:28,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:01:28,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:01:28,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:01:28,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:01:28,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:01:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:01:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:01:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:01:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:01:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:01:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:01:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:01:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:01:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:01:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:01:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:01:51,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:01:51,436 INFO L299 CfgBuilder]: Removed 8337 assume(true) statements. [2020-12-22 15:01:51,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:01:51 BoogieIcfgContainer [2020-12-22 15:01:51,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:01:51,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:01:51,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:01:51,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:01:51,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:01:20" (1/3) ... [2020-12-22 15:01:51,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649318a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:01:51, skipping insertion in model container [2020-12-22 15:01:51,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:25" (2/3) ... [2020-12-22 15:01:51,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649318a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:01:51, skipping insertion in model container [2020-12-22 15:01:51,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:01:51" (3/3) ... [2020-12-22 15:01:51,455 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2020-12-22 15:01:51,462 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:01:51,471 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-12-22 15:01:51,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-12-22 15:01:51,549 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:01:51,549 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:01:51,549 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:01:51,549 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:01:51,549 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:01:51,550 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:01:51,550 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:01:51,550 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:01:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states. [2020-12-22 15:01:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 15:01:51,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:01:51,698 INFO L422 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] [2020-12-22 15:01:51,698 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:01:51,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:01:51,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1268229892, now seen corresponding path program 1 times [2020-12-22 15:01:51,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:01:51,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308605542] [2020-12-22 15:01:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:01:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:01:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:01:52,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308605542] [2020-12-22 15:01:52,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:01:52,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:01:52,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200575634] [2020-12-22 15:01:52,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:01:52,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:01:52,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:01:52,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:01:52,568 INFO L87 Difference]: Start difference. First operand 6378 states. Second operand 2 states. [2020-12-22 15:01:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:01:52,956 INFO L93 Difference]: Finished difference Result 12752 states and 16125 transitions. [2020-12-22 15:01:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:01:52,958 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 63 [2020-12-22 15:01:52,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:01:53,031 INFO L225 Difference]: With dead ends: 12752 [2020-12-22 15:01:53,032 INFO L226 Difference]: Without dead ends: 6324 [2020-12-22 15:01:53,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:01:53,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6324 states. [2020-12-22 15:01:53,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6324 to 6324. [2020-12-22 15:01:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6324 states. [2020-12-22 15:01:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6324 states to 6324 states and 7892 transitions. [2020-12-22 15:01:53,386 INFO L78 Accepts]: Start accepts. Automaton has 6324 states and 7892 transitions. Word has length 63 [2020-12-22 15:01:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:01:53,387 INFO L481 AbstractCegarLoop]: Abstraction has 6324 states and 7892 transitions. [2020-12-22 15:01:53,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:01:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 6324 states and 7892 transitions. [2020-12-22 15:01:53,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 15:01:53,395 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:01:53,395 INFO L422 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] [2020-12-22 15:01:53,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:01:53,396 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:01:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:01:53,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1356124486, now seen corresponding path program 1 times [2020-12-22 15:01:53,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:01:53,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958880588] [2020-12-22 15:01:53,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:01:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:01:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:01:53,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958880588] [2020-12-22 15:01:53,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:01:53,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:01:53,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996619403] [2020-12-22 15:01:53,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:01:53,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:01:53,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:01:53,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:01:53,853 INFO L87 Difference]: Start difference. First operand 6324 states and 7892 transitions. Second operand 4 states. [2020-12-22 15:01:55,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:01:55,554 INFO L93 Difference]: Finished difference Result 29783 states and 37035 transitions. [2020-12-22 15:01:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:01:55,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-12-22 15:01:55,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:01:55,898 INFO L225 Difference]: With dead ends: 29783 [2020-12-22 15:01:55,898 INFO L226 Difference]: Without dead ends: 23498 [2020-12-22 15:01:55,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:01:55,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23498 states. [2020-12-22 15:01:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23498 to 11833. [2020-12-22 15:01:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11833 states. [2020-12-22 15:01:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11833 states to 11833 states and 14719 transitions. [2020-12-22 15:01:56,785 INFO L78 Accepts]: Start accepts. Automaton has 11833 states and 14719 transitions. Word has length 63 [2020-12-22 15:01:56,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:01:56,786 INFO L481 AbstractCegarLoop]: Abstraction has 11833 states and 14719 transitions. [2020-12-22 15:01:56,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:01:56,786 INFO L276 IsEmpty]: Start isEmpty. Operand 11833 states and 14719 transitions. [2020-12-22 15:01:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 15:01:56,792 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:01:56,792 INFO L422 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] [2020-12-22 15:01:56,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:01:56,793 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:01:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:01:56,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1471497829, now seen corresponding path program 1 times [2020-12-22 15:01:56,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:01:56,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15289393] [2020-12-22 15:01:56,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:01:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:01:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:01:57,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15289393] [2020-12-22 15:01:57,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:01:57,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:01:57,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300208981] [2020-12-22 15:01:57,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:01:57,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:01:57,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:01:57,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:01:57,079 INFO L87 Difference]: Start difference. First operand 11833 states and 14719 transitions. Second operand 4 states. [2020-12-22 15:01:59,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:01:59,355 INFO L93 Difference]: Finished difference Result 57328 states and 71172 transitions. [2020-12-22 15:01:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:01:59,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-12-22 15:01:59,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:01:59,502 INFO L225 Difference]: With dead ends: 57328 [2020-12-22 15:01:59,503 INFO L226 Difference]: Without dead ends: 45534 [2020-12-22 15:01:59,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:01:59,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45534 states. [2020-12-22 15:02:01,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45534 to 23406. [2020-12-22 15:02:01,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23406 states. [2020-12-22 15:02:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23406 states to 23406 states and 29123 transitions. [2020-12-22 15:02:01,140 INFO L78 Accepts]: Start accepts. Automaton has 23406 states and 29123 transitions. Word has length 64 [2020-12-22 15:02:01,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:02:01,143 INFO L481 AbstractCegarLoop]: Abstraction has 23406 states and 29123 transitions. [2020-12-22 15:02:01,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:02:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 23406 states and 29123 transitions. [2020-12-22 15:02:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 15:02:01,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:02:01,149 INFO L422 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] [2020-12-22 15:02:01,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:02:01,149 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:02:01,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:02:01,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1146130534, now seen corresponding path program 1 times [2020-12-22 15:02:01,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:02:01,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960458789] [2020-12-22 15:02:01,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:02:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:02:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:02:01,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960458789] [2020-12-22 15:02:01,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:02:01,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:02:01,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562549858] [2020-12-22 15:02:01,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:02:01,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:02:01,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:02:01,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:02:01,533 INFO L87 Difference]: Start difference. First operand 23406 states and 29123 transitions. Second operand 4 states. [2020-12-22 15:02:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:02:05,345 INFO L93 Difference]: Finished difference Result 113912 states and 141459 transitions. [2020-12-22 15:02:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:02:05,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2020-12-22 15:02:05,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:02:05,666 INFO L225 Difference]: With dead ends: 113912 [2020-12-22 15:02:05,666 INFO L226 Difference]: Without dead ends: 90545 [2020-12-22 15:02:05,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:02:05,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90545 states. [2020-12-22 15:02:08,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90545 to 46372. [2020-12-22 15:02:08,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46372 states. [2020-12-22 15:02:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46372 states to 46372 states and 57685 transitions. [2020-12-22 15:02:08,744 INFO L78 Accepts]: Start accepts. Automaton has 46372 states and 57685 transitions. Word has length 65 [2020-12-22 15:02:08,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:02:08,745 INFO L481 AbstractCegarLoop]: Abstraction has 46372 states and 57685 transitions. [2020-12-22 15:02:08,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:02:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 46372 states and 57685 transitions. [2020-12-22 15:02:08,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 15:02:08,750 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:02:08,750 INFO L422 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] [2020-12-22 15:02:08,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:02:08,751 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:02:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:02:08,752 INFO L82 PathProgramCache]: Analyzing trace with hash 350321661, now seen corresponding path program 1 times [2020-12-22 15:02:08,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:02:08,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858294350] [2020-12-22 15:02:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:02:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:02:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:02:09,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858294350] [2020-12-22 15:02:09,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:02:09,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:02:09,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807460280] [2020-12-22 15:02:09,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:02:09,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:02:09,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:02:09,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:02:09,023 INFO L87 Difference]: Start difference. First operand 46372 states and 57685 transitions. Second operand 4 states. [2020-12-22 15:02:15,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:02:15,256 INFO L93 Difference]: Finished difference Result 226536 states and 281287 transitions. [2020-12-22 15:02:15,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:02:15,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-12-22 15:02:15,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:02:15,749 INFO L225 Difference]: With dead ends: 226536 [2020-12-22 15:02:15,749 INFO L226 Difference]: Without dead ends: 180203 [2020-12-22 15:02:15,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:02:16,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180203 states. [2020-12-22 15:02:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180203 to 91943. [2020-12-22 15:02:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91943 states. [2020-12-22 15:02:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91943 states to 91943 states and 114315 transitions. [2020-12-22 15:02:20,482 INFO L78 Accepts]: Start accepts. Automaton has 91943 states and 114315 transitions. Word has length 66 [2020-12-22 15:02:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:02:20,483 INFO L481 AbstractCegarLoop]: Abstraction has 91943 states and 114315 transitions. [2020-12-22 15:02:20,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:02:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 91943 states and 114315 transitions. [2020-12-22 15:02:20,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 15:02:20,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:02:20,492 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 15:02:20,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:02:20,492 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:02:20,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:02:20,493 INFO L82 PathProgramCache]: Analyzing trace with hash 623056557, now seen corresponding path program 1 times [2020-12-22 15:02:20,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:02:20,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988027006] [2020-12-22 15:02:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:02:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:02:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 15:02:20,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988027006] [2020-12-22 15:02:20,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:02:20,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:02:20,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219243662] [2020-12-22 15:02:20,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:02:20,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:02:20,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:02:20,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:02:20,775 INFO L87 Difference]: Start difference. First operand 91943 states and 114315 transitions. Second operand 5 states. [2020-12-22 15:02:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:02:29,675 INFO L93 Difference]: Finished difference Result 318463 states and 395587 transitions. [2020-12-22 15:02:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:02:29,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2020-12-22 15:02:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:02:30,179 INFO L225 Difference]: With dead ends: 318463 [2020-12-22 15:02:30,184 INFO L226 Difference]: Without dead ends: 226559 [2020-12-22 15:02:30,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 15:02:30,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226559 states. [2020-12-22 15:02:35,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226559 to 91983. [2020-12-22 15:02:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91983 states. [2020-12-22 15:02:35,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91983 states to 91983 states and 114355 transitions. [2020-12-22 15:02:35,830 INFO L78 Accepts]: Start accepts. Automaton has 91983 states and 114355 transitions. Word has length 71 [2020-12-22 15:02:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:02:35,830 INFO L481 AbstractCegarLoop]: Abstraction has 91983 states and 114355 transitions. [2020-12-22 15:02:35,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:02:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 91983 states and 114355 transitions. [2020-12-22 15:02:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 15:02:35,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:02:35,835 INFO L422 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] [2020-12-22 15:02:35,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:02:35,835 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:02:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:02:35,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1438801792, now seen corresponding path program 1 times [2020-12-22 15:02:35,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:02:35,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575514364] [2020-12-22 15:02:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:02:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:02:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:02:36,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575514364] [2020-12-22 15:02:36,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:02:36,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:02:36,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057178661] [2020-12-22 15:02:36,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:02:36,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:02:36,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:02:36,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:02:36,072 INFO L87 Difference]: Start difference. First operand 91983 states and 114355 transitions. Second operand 3 states. [2020-12-22 15:02:43,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:02:43,360 INFO L93 Difference]: Finished difference Result 237347 states and 294527 transitions. [2020-12-22 15:02:43,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:02:43,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-12-22 15:02:43,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:02:43,729 INFO L225 Difference]: With dead ends: 237347 [2020-12-22 15:02:43,729 INFO L226 Difference]: Without dead ends: 145403 [2020-12-22 15:02:43,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:02:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145403 states. [2020-12-22 15:02:50,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145403 to 131459. [2020-12-22 15:02:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131459 states. [2020-12-22 15:02:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131459 states to 131459 states and 163419 transitions. [2020-12-22 15:02:50,516 INFO L78 Accepts]: Start accepts. Automaton has 131459 states and 163419 transitions. Word has length 72 [2020-12-22 15:02:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:02:50,517 INFO L481 AbstractCegarLoop]: Abstraction has 131459 states and 163419 transitions. [2020-12-22 15:02:50,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:02:50,517 INFO L276 IsEmpty]: Start isEmpty. Operand 131459 states and 163419 transitions. [2020-12-22 15:02:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 15:02:50,519 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:02:50,519 INFO L422 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] [2020-12-22 15:02:50,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:02:50,520 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:02:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:02:50,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1304793484, now seen corresponding path program 1 times [2020-12-22 15:02:50,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:02:50,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142181345] [2020-12-22 15:02:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:02:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:02:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:02:50,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142181345] [2020-12-22 15:02:50,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:02:50,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:02:50,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797798294] [2020-12-22 15:02:50,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:02:50,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:02:50,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:02:50,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:02:50,721 INFO L87 Difference]: Start difference. First operand 131459 states and 163419 transitions. Second operand 3 states. [2020-12-22 15:03:01,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:03:01,179 INFO L93 Difference]: Finished difference Result 346595 states and 431527 transitions. [2020-12-22 15:03:01,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:03:01,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 15:03:01,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:03:01,787 INFO L225 Difference]: With dead ends: 346595 [2020-12-22 15:03:01,787 INFO L226 Difference]: Without dead ends: 215175 [2020-12-22 15:03:02,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:03:02,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215175 states. [2020-12-22 15:03:12,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215175 to 215113. [2020-12-22 15:03:12,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215113 states. [2020-12-22 15:03:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215113 states to 215113 states and 268072 transitions. [2020-12-22 15:03:12,818 INFO L78 Accepts]: Start accepts. Automaton has 215113 states and 268072 transitions. Word has length 75 [2020-12-22 15:03:12,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:03:12,819 INFO L481 AbstractCegarLoop]: Abstraction has 215113 states and 268072 transitions. [2020-12-22 15:03:12,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:03:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand 215113 states and 268072 transitions. [2020-12-22 15:03:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 15:03:12,822 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:03:12,822 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 15:03:12,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:03:12,822 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:03:12,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:03:12,823 INFO L82 PathProgramCache]: Analyzing trace with hash 723400708, now seen corresponding path program 1 times [2020-12-22 15:03:12,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:03:12,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583135809] [2020-12-22 15:03:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:03:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:03:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:03:13,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583135809] [2020-12-22 15:03:13,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:03:13,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:03:13,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458566531] [2020-12-22 15:03:13,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:03:13,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:03:13,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:03:13,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:03:13,076 INFO L87 Difference]: Start difference. First operand 215113 states and 268072 transitions. Second operand 3 states. [2020-12-22 15:03:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:03:25,210 INFO L93 Difference]: Finished difference Result 430219 states and 536133 transitions. [2020-12-22 15:03:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:03:25,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-12-22 15:03:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:03:25,651 INFO L225 Difference]: With dead ends: 430219 [2020-12-22 15:03:25,651 INFO L226 Difference]: Without dead ends: 215113 [2020-12-22 15:03:25,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:03:26,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215113 states. [2020-12-22 15:03:36,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215113 to 215113. [2020-12-22 15:03:36,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215113 states. [2020-12-22 15:03:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215113 states to 215113 states and 268040 transitions. [2020-12-22 15:03:37,186 INFO L78 Accepts]: Start accepts. Automaton has 215113 states and 268040 transitions. Word has length 93 [2020-12-22 15:03:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:03:37,187 INFO L481 AbstractCegarLoop]: Abstraction has 215113 states and 268040 transitions. [2020-12-22 15:03:37,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:03:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 215113 states and 268040 transitions. [2020-12-22 15:03:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 15:03:37,214 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:03:37,214 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 15:03:37,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:03:37,215 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:03:37,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:03:37,216 INFO L82 PathProgramCache]: Analyzing trace with hash 944325715, now seen corresponding path program 1 times [2020-12-22 15:03:37,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:03:37,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402063741] [2020-12-22 15:03:37,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:03:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:03:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:03:37,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402063741] [2020-12-22 15:03:37,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:03:37,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:03:37,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819127642] [2020-12-22 15:03:37,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:03:37,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:03:37,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:03:37,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:03:37,595 INFO L87 Difference]: Start difference. First operand 215113 states and 268040 transitions. Second operand 3 states. [2020-12-22 15:03:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:03:56,750 INFO L93 Difference]: Finished difference Result 514703 states and 642305 transitions. [2020-12-22 15:03:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:03:56,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-22 15:03:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:03:57,358 INFO L225 Difference]: With dead ends: 514703 [2020-12-22 15:03:57,359 INFO L226 Difference]: Without dead ends: 299629 [2020-12-22 15:03:57,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:03:58,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299629 states. [2020-12-22 15:04:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299629 to 299567. [2020-12-22 15:04:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299567 states. [2020-12-22 15:04:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299567 states to 299567 states and 373717 transitions. [2020-12-22 15:04:13,101 INFO L78 Accepts]: Start accepts. Automaton has 299567 states and 373717 transitions. Word has length 105 [2020-12-22 15:04:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:13,102 INFO L481 AbstractCegarLoop]: Abstraction has 299567 states and 373717 transitions. [2020-12-22 15:04:13,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:04:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 299567 states and 373717 transitions. [2020-12-22 15:04:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-22 15:04:13,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:13,106 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-12-22 15:04:13,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:04:13,106 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:13,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1793985705, now seen corresponding path program 1 times [2020-12-22 15:04:13,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:13,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637657836] [2020-12-22 15:04:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 15:04:13,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637657836] [2020-12-22 15:04:13,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:13,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:13,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308415820] [2020-12-22 15:04:13,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:04:13,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:13,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:04:13,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:13,410 INFO L87 Difference]: Start difference. First operand 299567 states and 373717 transitions. Second operand 3 states. [2020-12-22 15:04:35,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:35,049 INFO L93 Difference]: Finished difference Result 683579 states and 853595 transitions. [2020-12-22 15:04:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:04:35,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-12-22 15:04:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:36,078 INFO L225 Difference]: With dead ends: 683579 [2020-12-22 15:04:36,079 INFO L226 Difference]: Without dead ends: 384051 [2020-12-22 15:04:36,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:37,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384051 states.