/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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 07:16:52,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 07:16:52,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 07:16:52,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 07:16:52,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 07:16:52,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 07:16:52,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 07:16:52,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 07:16:52,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 07:16:52,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 07:16:52,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 07:16:52,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 07:16:52,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 07:16:52,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 07:16:52,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 07:16:52,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 07:16:52,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 07:16:52,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 07:16:52,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 07:16:52,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 07:16:52,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 07:16:52,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 07:16:52,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 07:16:52,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 07:16:52,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 07:16:52,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 07:16:52,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 07:16:52,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 07:16:52,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 07:16:52,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 07:16:52,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 07:16:52,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 07:16:52,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 07:16:52,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 07:16:52,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 07:16:52,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 07:16:52,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 07:16:52,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 07:16:52,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 07:16:52,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 07:16:52,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 07:16:52,825 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 07:16:52,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 07:16:52,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 07:16:52,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 07:16:52,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 07:16:52,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 07:16:52,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 07:16:52,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 07:16:52,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 07:16:52,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 07:16:52,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 07:16:52,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 07:16:52,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 07:16:52,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 07:16:52,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 07:16:52,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 07:16:52,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 07:16:52,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 07:16:52,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 07:16:52,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 07:16:52,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 07:16:52,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 07:16:53,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 07:16:53,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 07:16:53,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 07:16:53,228 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 07:16:53,231 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 07:16:53,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2020-12-22 07:16:53,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958ed4472/f9bc61b4165f4048ab758bee796ce5b3/FLAG0ccf21f39 [2020-12-22 07:16:54,101 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 07:16:54,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2020-12-22 07:16:54,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958ed4472/f9bc61b4165f4048ab758bee796ce5b3/FLAG0ccf21f39 [2020-12-22 07:16:54,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958ed4472/f9bc61b4165f4048ab758bee796ce5b3 [2020-12-22 07:16:54,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 07:16:54,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 07:16:54,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 07:16:54,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 07:16:54,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 07:16:54,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:16:54" (1/1) ... [2020-12-22 07:16:54,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648e8610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:54, skipping insertion in model container [2020-12-22 07:16:54,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:16:54" (1/1) ... [2020-12-22 07:16:54,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 07:16:54,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 07:16:54,781 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2020-12-22 07:16:54,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:16:54,811 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 07:16:54,948 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2020-12-22 07:16:54,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:16:55,010 INFO L208 MainTranslator]: Completed translation [2020-12-22 07:16:55,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55 WrapperNode [2020-12-22 07:16:55,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 07:16:55,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 07:16:55,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 07:16:55,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 07:16:55,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 07:16:55,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 07:16:55,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 07:16:55,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 07:16:55,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (1/1) ... [2020-12-22 07:16:55,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 07:16:55,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 07:16:55,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 07:16:55,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 07:16:55,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (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 07:16:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 07:16:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 07:16:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 07:16:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 07:16:57,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 07:16:57,130 INFO L299 CfgBuilder]: Removed 173 assume(true) statements. [2020-12-22 07:16:57,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:16:57 BoogieIcfgContainer [2020-12-22 07:16:57,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 07:16:57,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 07:16:57,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 07:16:57,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 07:16:57,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:16:54" (1/3) ... [2020-12-22 07:16:57,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc1b6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:16:57, skipping insertion in model container [2020-12-22 07:16:57,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:16:55" (2/3) ... [2020-12-22 07:16:57,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc1b6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:16:57, skipping insertion in model container [2020-12-22 07:16:57,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:16:57" (3/3) ... [2020-12-22 07:16:57,147 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2020-12-22 07:16:57,154 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 07:16:57,162 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2020-12-22 07:16:57,182 INFO L253 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2020-12-22 07:16:57,237 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 07:16:57,237 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 07:16:57,237 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 07:16:57,237 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 07:16:57,237 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 07:16:57,238 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 07:16:57,238 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 07:16:57,238 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 07:16:57,281 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states. [2020-12-22 07:16:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 07:16:57,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:57,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:16:57,290 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:57,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:57,297 INFO L82 PathProgramCache]: Analyzing trace with hash 595705480, now seen corresponding path program 1 times [2020-12-22 07:16:57,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:57,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506506712] [2020-12-22 07:16:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:57,605 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 07:16:57,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506506712] [2020-12-22 07:16:57,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:16:57,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:16:57,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503801129] [2020-12-22 07:16:57,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:16:57,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:57,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:16:57,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:16:57,635 INFO L87 Difference]: Start difference. First operand 518 states. Second operand 3 states. [2020-12-22 07:16:57,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:57,970 INFO L93 Difference]: Finished difference Result 1244 states and 2057 transitions. [2020-12-22 07:16:57,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:16:57,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 07:16:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:58,001 INFO L225 Difference]: With dead ends: 1244 [2020-12-22 07:16:58,002 INFO L226 Difference]: Without dead ends: 720 [2020-12-22 07:16:58,013 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 07:16:58,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-12-22 07:16:58,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 454. [2020-12-22 07:16:58,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-12-22 07:16:58,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 709 transitions. [2020-12-22 07:16:58,138 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 709 transitions. Word has length 9 [2020-12-22 07:16:58,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:58,139 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 709 transitions. [2020-12-22 07:16:58,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:16:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 709 transitions. [2020-12-22 07:16:58,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 07:16:58,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:58,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:16:58,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 07:16:58,144 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:58,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:58,146 INFO L82 PathProgramCache]: Analyzing trace with hash -503954138, now seen corresponding path program 1 times [2020-12-22 07:16:58,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:58,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347365073] [2020-12-22 07:16:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:58,246 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 07:16:58,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347365073] [2020-12-22 07:16:58,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:16:58,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:16:58,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713591063] [2020-12-22 07:16:58,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:16:58,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:58,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:16:58,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:16:58,253 INFO L87 Difference]: Start difference. First operand 454 states and 709 transitions. Second operand 3 states. [2020-12-22 07:16:58,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:58,342 INFO L93 Difference]: Finished difference Result 1122 states and 1737 transitions. [2020-12-22 07:16:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:16:58,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 07:16:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:58,350 INFO L225 Difference]: With dead ends: 1122 [2020-12-22 07:16:58,350 INFO L226 Difference]: Without dead ends: 670 [2020-12-22 07:16:58,353 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 07:16:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-12-22 07:16:58,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 421. [2020-12-22 07:16:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-12-22 07:16:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 651 transitions. [2020-12-22 07:16:58,395 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 651 transitions. Word has length 10 [2020-12-22 07:16:58,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:58,396 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 651 transitions. [2020-12-22 07:16:58,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:16:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 651 transitions. [2020-12-22 07:16:58,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 07:16:58,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:58,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:16:58,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 07:16:58,400 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:58,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:58,402 INFO L82 PathProgramCache]: Analyzing trace with hash -248055967, now seen corresponding path program 1 times [2020-12-22 07:16:58,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:58,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992003693] [2020-12-22 07:16:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:58,500 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 07:16:58,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992003693] [2020-12-22 07:16:58,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:16:58,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:16:58,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165711228] [2020-12-22 07:16:58,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:16:58,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:58,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:16:58,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:16:58,503 INFO L87 Difference]: Start difference. First operand 421 states and 651 transitions. Second operand 3 states. [2020-12-22 07:16:58,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:58,572 INFO L93 Difference]: Finished difference Result 1241 states and 1924 transitions. [2020-12-22 07:16:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:16:58,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-22 07:16:58,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:58,578 INFO L225 Difference]: With dead ends: 1241 [2020-12-22 07:16:58,578 INFO L226 Difference]: Without dead ends: 830 [2020-12-22 07:16:58,580 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 07:16:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-12-22 07:16:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 425. [2020-12-22 07:16:58,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-12-22 07:16:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 655 transitions. [2020-12-22 07:16:58,597 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 655 transitions. Word has length 14 [2020-12-22 07:16:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:58,597 INFO L481 AbstractCegarLoop]: Abstraction has 425 states and 655 transitions. [2020-12-22 07:16:58,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:16:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 655 transitions. [2020-12-22 07:16:58,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 07:16:58,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:58,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:16:58,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 07:16:58,599 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:58,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:58,600 INFO L82 PathProgramCache]: Analyzing trace with hash -35486156, now seen corresponding path program 1 times [2020-12-22 07:16:58,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:58,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982418492] [2020-12-22 07:16:58,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:58,647 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 07:16:58,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982418492] [2020-12-22 07:16:58,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:16:58,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:16:58,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203810055] [2020-12-22 07:16:58,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:16:58,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:58,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:16:58,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:16:58,650 INFO L87 Difference]: Start difference. First operand 425 states and 655 transitions. Second operand 4 states. [2020-12-22 07:16:58,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:58,738 INFO L93 Difference]: Finished difference Result 1564 states and 2392 transitions. [2020-12-22 07:16:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:16:58,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-22 07:16:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:58,746 INFO L225 Difference]: With dead ends: 1564 [2020-12-22 07:16:58,746 INFO L226 Difference]: Without dead ends: 1153 [2020-12-22 07:16:58,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:16:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-12-22 07:16:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 427. [2020-12-22 07:16:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-12-22 07:16:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 657 transitions. [2020-12-22 07:16:58,767 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 657 transitions. Word has length 18 [2020-12-22 07:16:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:58,768 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 657 transitions. [2020-12-22 07:16:58,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:16:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 657 transitions. [2020-12-22 07:16:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 07:16:58,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:58,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:16:58,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 07:16:58,770 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:58,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:58,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1707916525, now seen corresponding path program 1 times [2020-12-22 07:16:58,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:58,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704357655] [2020-12-22 07:16:58,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:58,811 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 07:16:58,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704357655] [2020-12-22 07:16:58,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:16:58,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:16:58,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362424954] [2020-12-22 07:16:58,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:16:58,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:58,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:16:58,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:16:58,814 INFO L87 Difference]: Start difference. First operand 427 states and 657 transitions. Second operand 4 states. [2020-12-22 07:16:58,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:58,880 INFO L93 Difference]: Finished difference Result 904 states and 1380 transitions. [2020-12-22 07:16:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:16:58,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-22 07:16:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:58,884 INFO L225 Difference]: With dead ends: 904 [2020-12-22 07:16:58,885 INFO L226 Difference]: Without dead ends: 662 [2020-12-22 07:16:58,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:16:58,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-12-22 07:16:58,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 425. [2020-12-22 07:16:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-12-22 07:16:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 650 transitions. [2020-12-22 07:16:58,902 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 650 transitions. Word has length 19 [2020-12-22 07:16:58,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:58,902 INFO L481 AbstractCegarLoop]: Abstraction has 425 states and 650 transitions. [2020-12-22 07:16:58,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:16:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 650 transitions. [2020-12-22 07:16:58,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 07:16:58,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:58,903 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] [2020-12-22 07:16:58,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 07:16:58,904 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:58,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1967275947, now seen corresponding path program 1 times [2020-12-22 07:16:58,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:58,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858145824] [2020-12-22 07:16:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 07:16:58,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858145824] [2020-12-22 07:16:58,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488080862] [2020-12-22 07:16:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:16:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:59,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 07:16:59,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:16:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 07:16:59,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:16:59,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 07:16:59,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733672032] [2020-12-22 07:16:59,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:16:59,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:59,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:16:59,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:16:59,174 INFO L87 Difference]: Start difference. First operand 425 states and 650 transitions. Second operand 5 states. [2020-12-22 07:16:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:59,280 INFO L93 Difference]: Finished difference Result 1655 states and 2545 transitions. [2020-12-22 07:16:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:16:59,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-22 07:16:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:59,288 INFO L225 Difference]: With dead ends: 1655 [2020-12-22 07:16:59,288 INFO L226 Difference]: Without dead ends: 1241 [2020-12-22 07:16:59,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:16:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-12-22 07:16:59,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 571. [2020-12-22 07:16:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-12-22 07:16:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 900 transitions. [2020-12-22 07:16:59,314 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 900 transitions. Word has length 21 [2020-12-22 07:16:59,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:59,315 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 900 transitions. [2020-12-22 07:16:59,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:16:59,315 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 900 transitions. [2020-12-22 07:16:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 07:16:59,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:59,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:16:59,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 07:16:59,531 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:59,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:59,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1165168607, now seen corresponding path program 2 times [2020-12-22 07:16:59,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:59,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124122086] [2020-12-22 07:16:59,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 07:16:59,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124122086] [2020-12-22 07:16:59,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:16:59,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:16:59,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450775108] [2020-12-22 07:16:59,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:16:59,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:59,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:16:59,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:16:59,627 INFO L87 Difference]: Start difference. First operand 571 states and 900 transitions. Second operand 3 states. [2020-12-22 07:16:59,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:59,754 INFO L93 Difference]: Finished difference Result 1288 states and 2001 transitions. [2020-12-22 07:16:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:16:59,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-22 07:16:59,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:59,759 INFO L225 Difference]: With dead ends: 1288 [2020-12-22 07:16:59,760 INFO L226 Difference]: Without dead ends: 775 [2020-12-22 07:16:59,761 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 07:16:59,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-12-22 07:16:59,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 505. [2020-12-22 07:16:59,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2020-12-22 07:16:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 775 transitions. [2020-12-22 07:16:59,785 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 775 transitions. Word has length 28 [2020-12-22 07:16:59,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:59,785 INFO L481 AbstractCegarLoop]: Abstraction has 505 states and 775 transitions. [2020-12-22 07:16:59,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:16:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 775 transitions. [2020-12-22 07:16:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 07:16:59,787 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:59,787 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:16:59,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 07:16:59,788 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:59,789 INFO L82 PathProgramCache]: Analyzing trace with hash 777427029, now seen corresponding path program 1 times [2020-12-22 07:16:59,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:59,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270184408] [2020-12-22 07:16:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:16:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:16:59,858 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 07:16:59,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270184408] [2020-12-22 07:16:59,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:16:59,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:16:59,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974907366] [2020-12-22 07:16:59,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:16:59,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:16:59,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:16:59,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:16:59,862 INFO L87 Difference]: Start difference. First operand 505 states and 775 transitions. Second operand 3 states. [2020-12-22 07:16:59,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:16:59,951 INFO L93 Difference]: Finished difference Result 1156 states and 1760 transitions. [2020-12-22 07:16:59,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:16:59,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-22 07:16:59,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:16:59,956 INFO L225 Difference]: With dead ends: 1156 [2020-12-22 07:16:59,956 INFO L226 Difference]: Without dead ends: 682 [2020-12-22 07:16:59,958 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 07:16:59,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-12-22 07:16:59,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 454. [2020-12-22 07:16:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-12-22 07:16:59,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 681 transitions. [2020-12-22 07:16:59,975 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 681 transitions. Word has length 28 [2020-12-22 07:16:59,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:16:59,975 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 681 transitions. [2020-12-22 07:16:59,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:16:59,976 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 681 transitions. [2020-12-22 07:16:59,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 07:16:59,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:16:59,979 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 07:16:59,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 07:16:59,980 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:16:59,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:16:59,981 INFO L82 PathProgramCache]: Analyzing trace with hash 104948594, now seen corresponding path program 1 times [2020-12-22 07:16:59,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:16:59,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590506286] [2020-12-22 07:16:59,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 07:17:00,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590506286] [2020-12-22 07:17:00,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:00,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:00,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20168280] [2020-12-22 07:17:00,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:00,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:00,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:00,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:00,054 INFO L87 Difference]: Start difference. First operand 454 states and 681 transitions. Second operand 4 states. [2020-12-22 07:17:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:00,114 INFO L93 Difference]: Finished difference Result 1090 states and 1641 transitions. [2020-12-22 07:17:00,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:00,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-12-22 07:17:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:00,124 INFO L225 Difference]: With dead ends: 1090 [2020-12-22 07:17:00,124 INFO L226 Difference]: Without dead ends: 680 [2020-12-22 07:17:00,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:17:00,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-12-22 07:17:00,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 454. [2020-12-22 07:17:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-12-22 07:17:00,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 679 transitions. [2020-12-22 07:17:00,145 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 679 transitions. Word has length 38 [2020-12-22 07:17:00,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:00,146 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 679 transitions. [2020-12-22 07:17:00,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:00,146 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 679 transitions. [2020-12-22 07:17:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 07:17:00,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:00,147 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2020-12-22 07:17:00,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 07:17:00,147 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:00,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:00,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1338937392, now seen corresponding path program 1 times [2020-12-22 07:17:00,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:00,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775470949] [2020-12-22 07:17:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 07:17:00,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775470949] [2020-12-22 07:17:00,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:00,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:00,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256990105] [2020-12-22 07:17:00,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:00,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:00,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:00,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:00,230 INFO L87 Difference]: Start difference. First operand 454 states and 679 transitions. Second operand 3 states. [2020-12-22 07:17:00,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:00,289 INFO L93 Difference]: Finished difference Result 1026 states and 1540 transitions. [2020-12-22 07:17:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:00,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-22 07:17:00,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:00,295 INFO L225 Difference]: With dead ends: 1026 [2020-12-22 07:17:00,296 INFO L226 Difference]: Without dead ends: 635 [2020-12-22 07:17:00,300 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 07:17:00,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-12-22 07:17:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 410. [2020-12-22 07:17:00,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-12-22 07:17:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 605 transitions. [2020-12-22 07:17:00,316 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 605 transitions. Word has length 50 [2020-12-22 07:17:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:00,318 INFO L481 AbstractCegarLoop]: Abstraction has 410 states and 605 transitions. [2020-12-22 07:17:00,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 605 transitions. [2020-12-22 07:17:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 07:17:00,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:00,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2020-12-22 07:17:00,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 07:17:00,321 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:00,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:00,322 INFO L82 PathProgramCache]: Analyzing trace with hash 970476669, now seen corresponding path program 1 times [2020-12-22 07:17:00,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:00,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666469650] [2020-12-22 07:17:00,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 07:17:00,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666469650] [2020-12-22 07:17:00,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:00,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:00,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384823288] [2020-12-22 07:17:00,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:00,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:00,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:00,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:00,403 INFO L87 Difference]: Start difference. First operand 410 states and 605 transitions. Second operand 3 states. [2020-12-22 07:17:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:00,478 INFO L93 Difference]: Finished difference Result 860 states and 1269 transitions. [2020-12-22 07:17:00,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:00,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 07:17:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:00,482 INFO L225 Difference]: With dead ends: 860 [2020-12-22 07:17:00,482 INFO L226 Difference]: Without dead ends: 505 [2020-12-22 07:17:00,483 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 07:17:00,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-12-22 07:17:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 366. [2020-12-22 07:17:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-12-22 07:17:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 517 transitions. [2020-12-22 07:17:00,497 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 517 transitions. Word has length 51 [2020-12-22 07:17:00,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:00,497 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 517 transitions. [2020-12-22 07:17:00,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 517 transitions. [2020-12-22 07:17:00,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-22 07:17:00,499 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:00,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2020-12-22 07:17:00,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 07:17:00,500 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:00,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:00,501 INFO L82 PathProgramCache]: Analyzing trace with hash 216341264, now seen corresponding path program 1 times [2020-12-22 07:17:00,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:00,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943786661] [2020-12-22 07:17:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 07:17:00,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943786661] [2020-12-22 07:17:00,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:00,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:00,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226764998] [2020-12-22 07:17:00,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:00,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:00,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:00,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:00,570 INFO L87 Difference]: Start difference. First operand 366 states and 517 transitions. Second operand 4 states. [2020-12-22 07:17:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:00,622 INFO L93 Difference]: Finished difference Result 868 states and 1248 transitions. [2020-12-22 07:17:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:00,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-12-22 07:17:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:00,627 INFO L225 Difference]: With dead ends: 868 [2020-12-22 07:17:00,627 INFO L226 Difference]: Without dead ends: 574 [2020-12-22 07:17:00,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:17:00,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-12-22 07:17:00,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 366. [2020-12-22 07:17:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-12-22 07:17:00,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 515 transitions. [2020-12-22 07:17:00,642 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 515 transitions. Word has length 62 [2020-12-22 07:17:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:00,643 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 515 transitions. [2020-12-22 07:17:00,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:00,644 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 515 transitions. [2020-12-22 07:17:00,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 07:17:00,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:00,645 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:00,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 07:17:00,645 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:00,646 INFO L82 PathProgramCache]: Analyzing trace with hash 542276843, now seen corresponding path program 1 times [2020-12-22 07:17:00,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:00,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549581127] [2020-12-22 07:17:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-22 07:17:00,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549581127] [2020-12-22 07:17:00,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166564728] [2020-12-22 07:17:00,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:00,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 07:17:00,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-22 07:17:00,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:17:00,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-22 07:17:00,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181112550] [2020-12-22 07:17:00,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 07:17:00,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:00,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 07:17:00,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:00,955 INFO L87 Difference]: Start difference. First operand 366 states and 515 transitions. Second operand 6 states. [2020-12-22 07:17:01,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:01,065 INFO L93 Difference]: Finished difference Result 1414 states and 2021 transitions. [2020-12-22 07:17:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:01,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-12-22 07:17:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:01,072 INFO L225 Difference]: With dead ends: 1414 [2020-12-22 07:17:01,072 INFO L226 Difference]: Without dead ends: 1067 [2020-12-22 07:17:01,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2020-12-22 07:17:01,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 439. [2020-12-22 07:17:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-12-22 07:17:01,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 612 transitions. [2020-12-22 07:17:01,094 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 612 transitions. Word has length 76 [2020-12-22 07:17:01,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:01,094 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 612 transitions. [2020-12-22 07:17:01,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 07:17:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 612 transitions. [2020-12-22 07:17:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 07:17:01,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:01,095 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 07:17:01,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 07:17:01,311 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:01,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:01,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1726325344, now seen corresponding path program 2 times [2020-12-22 07:17:01,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:01,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170362035] [2020-12-22 07:17:01,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-22 07:17:01,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170362035] [2020-12-22 07:17:01,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:01,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:01,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563072997] [2020-12-22 07:17:01,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:01,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:01,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:01,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:01,378 INFO L87 Difference]: Start difference. First operand 439 states and 612 transitions. Second operand 3 states. [2020-12-22 07:17:01,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:01,432 INFO L93 Difference]: Finished difference Result 856 states and 1238 transitions. [2020-12-22 07:17:01,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:01,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-22 07:17:01,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:01,436 INFO L225 Difference]: With dead ends: 856 [2020-12-22 07:17:01,436 INFO L226 Difference]: Without dead ends: 559 [2020-12-22 07:17:01,437 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 07:17:01,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-12-22 07:17:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 395. [2020-12-22 07:17:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-12-22 07:17:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 554 transitions. [2020-12-22 07:17:01,472 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 554 transitions. Word has length 103 [2020-12-22 07:17:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:01,472 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 554 transitions. [2020-12-22 07:17:01,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 554 transitions. [2020-12-22 07:17:01,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 07:17:01,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:01,474 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 07:17:01,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 07:17:01,474 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:01,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:01,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1846233333, now seen corresponding path program 1 times [2020-12-22 07:17:01,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:01,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224277221] [2020-12-22 07:17:01,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-22 07:17:01,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224277221] [2020-12-22 07:17:01,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:01,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:01,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002089448] [2020-12-22 07:17:01,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:01,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:01,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:01,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:01,547 INFO L87 Difference]: Start difference. First operand 395 states and 554 transitions. Second operand 3 states. [2020-12-22 07:17:01,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:01,582 INFO L93 Difference]: Finished difference Result 568 states and 813 transitions. [2020-12-22 07:17:01,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:01,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-12-22 07:17:01,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:01,585 INFO L225 Difference]: With dead ends: 568 [2020-12-22 07:17:01,585 INFO L226 Difference]: Without dead ends: 311 [2020-12-22 07:17:01,586 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 07:17:01,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-12-22 07:17:01,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2020-12-22 07:17:01,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-12-22 07:17:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 431 transitions. [2020-12-22 07:17:01,601 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 431 transitions. Word has length 112 [2020-12-22 07:17:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:01,602 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 431 transitions. [2020-12-22 07:17:01,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 431 transitions. [2020-12-22 07:17:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 07:17:01,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:01,603 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:01,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 07:17:01,604 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:01,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:01,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1519105475, now seen corresponding path program 1 times [2020-12-22 07:17:01,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:01,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277981677] [2020-12-22 07:17:01,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-22 07:17:01,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277981677] [2020-12-22 07:17:01,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:01,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:01,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515324162] [2020-12-22 07:17:01,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:01,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:01,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:01,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:01,671 INFO L87 Difference]: Start difference. First operand 311 states and 431 transitions. Second operand 4 states. [2020-12-22 07:17:01,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:01,706 INFO L93 Difference]: Finished difference Result 483 states and 689 transitions. [2020-12-22 07:17:01,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:01,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2020-12-22 07:17:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:01,709 INFO L225 Difference]: With dead ends: 483 [2020-12-22 07:17:01,709 INFO L226 Difference]: Without dead ends: 311 [2020-12-22 07:17:01,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:17:01,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-12-22 07:17:01,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2020-12-22 07:17:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-12-22 07:17:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 428 transitions. [2020-12-22 07:17:01,723 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 428 transitions. Word has length 115 [2020-12-22 07:17:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:01,723 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 428 transitions. [2020-12-22 07:17:01,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 428 transitions. [2020-12-22 07:17:01,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 07:17:01,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:01,725 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 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 07:17:01,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 07:17:01,725 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:01,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:01,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1299139450, now seen corresponding path program 1 times [2020-12-22 07:17:01,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:01,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054731048] [2020-12-22 07:17:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:01,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054731048] [2020-12-22 07:17:01,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:01,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:01,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656494707] [2020-12-22 07:17:01,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:01,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:01,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:01,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:01,790 INFO L87 Difference]: Start difference. First operand 311 states and 428 transitions. Second operand 3 states. [2020-12-22 07:17:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:01,827 INFO L93 Difference]: Finished difference Result 612 states and 885 transitions. [2020-12-22 07:17:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:01,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-12-22 07:17:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:01,831 INFO L225 Difference]: With dead ends: 612 [2020-12-22 07:17:01,831 INFO L226 Difference]: Without dead ends: 445 [2020-12-22 07:17:01,832 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 07:17:01,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-12-22 07:17:01,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 306. [2020-12-22 07:17:01,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-12-22 07:17:01,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 420 transitions. [2020-12-22 07:17:01,846 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 420 transitions. Word has length 126 [2020-12-22 07:17:01,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:01,847 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 420 transitions. [2020-12-22 07:17:01,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:01,847 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 420 transitions. [2020-12-22 07:17:01,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-22 07:17:01,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:01,849 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:01,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 07:17:01,849 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:01,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:01,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1896761966, now seen corresponding path program 1 times [2020-12-22 07:17:01,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:01,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245766037] [2020-12-22 07:17:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:01,930 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:01,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245766037] [2020-12-22 07:17:01,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:01,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:01,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698698478] [2020-12-22 07:17:01,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:01,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:01,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:01,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:01,936 INFO L87 Difference]: Start difference. First operand 306 states and 420 transitions. Second operand 3 states. [2020-12-22 07:17:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:01,969 INFO L93 Difference]: Finished difference Result 593 states and 856 transitions. [2020-12-22 07:17:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:01,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-12-22 07:17:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:01,972 INFO L225 Difference]: With dead ends: 593 [2020-12-22 07:17:01,972 INFO L226 Difference]: Without dead ends: 431 [2020-12-22 07:17:01,973 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 07:17:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-12-22 07:17:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 302. [2020-12-22 07:17:01,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-12-22 07:17:01,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 413 transitions. [2020-12-22 07:17:01,987 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 413 transitions. Word has length 131 [2020-12-22 07:17:01,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:01,987 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 413 transitions. [2020-12-22 07:17:01,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:01,988 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 413 transitions. [2020-12-22 07:17:01,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-22 07:17:01,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:01,989 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:01,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 07:17:01,990 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:01,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:01,990 INFO L82 PathProgramCache]: Analyzing trace with hash 163782382, now seen corresponding path program 1 times [2020-12-22 07:17:01,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:01,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545458644] [2020-12-22 07:17:01,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:02,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545458644] [2020-12-22 07:17:02,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:02,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:02,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631159263] [2020-12-22 07:17:02,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:02,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:02,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:02,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:02,067 INFO L87 Difference]: Start difference. First operand 302 states and 413 transitions. Second operand 3 states. [2020-12-22 07:17:02,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:02,090 INFO L93 Difference]: Finished difference Result 458 states and 649 transitions. [2020-12-22 07:17:02,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:02,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-12-22 07:17:02,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:02,093 INFO L225 Difference]: With dead ends: 458 [2020-12-22 07:17:02,093 INFO L226 Difference]: Without dead ends: 300 [2020-12-22 07:17:02,093 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 07:17:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-12-22 07:17:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2020-12-22 07:17:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-22 07:17:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 407 transitions. [2020-12-22 07:17:02,108 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 407 transitions. Word has length 137 [2020-12-22 07:17:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:02,108 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 407 transitions. [2020-12-22 07:17:02,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 407 transitions. [2020-12-22 07:17:02,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-22 07:17:02,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:02,110 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:02,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 07:17:02,110 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:02,111 INFO L82 PathProgramCache]: Analyzing trace with hash -665869747, now seen corresponding path program 1 times [2020-12-22 07:17:02,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:02,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850983192] [2020-12-22 07:17:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:02,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850983192] [2020-12-22 07:17:02,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:02,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:02,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127446295] [2020-12-22 07:17:02,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:02,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:02,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:02,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:02,201 INFO L87 Difference]: Start difference. First operand 299 states and 407 transitions. Second operand 3 states. [2020-12-22 07:17:02,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:02,216 INFO L93 Difference]: Finished difference Result 500 states and 708 transitions. [2020-12-22 07:17:02,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:02,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-12-22 07:17:02,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:02,219 INFO L225 Difference]: With dead ends: 500 [2020-12-22 07:17:02,219 INFO L226 Difference]: Without dead ends: 345 [2020-12-22 07:17:02,222 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 07:17:02,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-12-22 07:17:02,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 296. [2020-12-22 07:17:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-12-22 07:17:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 403 transitions. [2020-12-22 07:17:02,237 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 403 transitions. Word has length 144 [2020-12-22 07:17:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:02,237 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 403 transitions. [2020-12-22 07:17:02,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 403 transitions. [2020-12-22 07:17:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-22 07:17:02,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:02,239 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:02,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 07:17:02,240 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:02,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1327302471, now seen corresponding path program 1 times [2020-12-22 07:17:02,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:02,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745909427] [2020-12-22 07:17:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-22 07:17:02,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745909427] [2020-12-22 07:17:02,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:02,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:02,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354476202] [2020-12-22 07:17:02,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:02,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:02,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:02,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:02,350 INFO L87 Difference]: Start difference. First operand 296 states and 403 transitions. Second operand 3 states. [2020-12-22 07:17:02,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:02,392 INFO L93 Difference]: Finished difference Result 478 states and 668 transitions. [2020-12-22 07:17:02,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:02,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-12-22 07:17:02,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:02,394 INFO L225 Difference]: With dead ends: 478 [2020-12-22 07:17:02,394 INFO L226 Difference]: Without dead ends: 296 [2020-12-22 07:17:02,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 07:17:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-12-22 07:17:02,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-12-22 07:17:02,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-12-22 07:17:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 400 transitions. [2020-12-22 07:17:02,410 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 400 transitions. Word has length 147 [2020-12-22 07:17:02,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:02,410 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 400 transitions. [2020-12-22 07:17:02,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 400 transitions. [2020-12-22 07:17:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-22 07:17:02,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:02,413 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:02,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 07:17:02,413 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:02,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:02,414 INFO L82 PathProgramCache]: Analyzing trace with hash -2087750763, now seen corresponding path program 1 times [2020-12-22 07:17:02,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:02,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181366529] [2020-12-22 07:17:02,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:02,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181366529] [2020-12-22 07:17:02,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:02,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:02,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464806479] [2020-12-22 07:17:02,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:02,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:02,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:02,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:02,541 INFO L87 Difference]: Start difference. First operand 296 states and 400 transitions. Second operand 4 states. [2020-12-22 07:17:02,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:02,650 INFO L93 Difference]: Finished difference Result 624 states and 885 transitions. [2020-12-22 07:17:02,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:02,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2020-12-22 07:17:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:02,653 INFO L225 Difference]: With dead ends: 624 [2020-12-22 07:17:02,653 INFO L226 Difference]: Without dead ends: 472 [2020-12-22 07:17:02,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 07:17:02,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-12-22 07:17:02,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 378. [2020-12-22 07:17:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-12-22 07:17:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 518 transitions. [2020-12-22 07:17:02,678 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 518 transitions. Word has length 159 [2020-12-22 07:17:02,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:02,679 INFO L481 AbstractCegarLoop]: Abstraction has 378 states and 518 transitions. [2020-12-22 07:17:02,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 518 transitions. [2020-12-22 07:17:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-12-22 07:17:02,681 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:02,681 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:02,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 07:17:02,682 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1509135504, now seen corresponding path program 1 times [2020-12-22 07:17:02,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:02,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938074361] [2020-12-22 07:17:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:02,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938074361] [2020-12-22 07:17:02,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:02,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:02,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482603906] [2020-12-22 07:17:02,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:02,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:02,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:02,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:02,784 INFO L87 Difference]: Start difference. First operand 378 states and 518 transitions. Second operand 3 states. [2020-12-22 07:17:02,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:02,846 INFO L93 Difference]: Finished difference Result 783 states and 1118 transitions. [2020-12-22 07:17:02,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:02,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-12-22 07:17:02,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:02,850 INFO L225 Difference]: With dead ends: 783 [2020-12-22 07:17:02,851 INFO L226 Difference]: Without dead ends: 587 [2020-12-22 07:17:02,851 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 07:17:02,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-12-22 07:17:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 448. [2020-12-22 07:17:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-12-22 07:17:02,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 617 transitions. [2020-12-22 07:17:02,881 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 617 transitions. Word has length 176 [2020-12-22 07:17:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:02,881 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 617 transitions. [2020-12-22 07:17:02,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 617 transitions. [2020-12-22 07:17:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-22 07:17:02,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:02,884 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:02,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 07:17:02,884 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:02,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1608082732, now seen corresponding path program 1 times [2020-12-22 07:17:02,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:02,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823904500] [2020-12-22 07:17:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:02,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823904500] [2020-12-22 07:17:02,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:02,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:02,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737375031] [2020-12-22 07:17:02,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:02,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:02,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:02,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:02,990 INFO L87 Difference]: Start difference. First operand 448 states and 617 transitions. Second operand 3 states. [2020-12-22 07:17:03,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:03,067 INFO L93 Difference]: Finished difference Result 932 states and 1331 transitions. [2020-12-22 07:17:03,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:03,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-22 07:17:03,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:03,073 INFO L225 Difference]: With dead ends: 932 [2020-12-22 07:17:03,073 INFO L226 Difference]: Without dead ends: 693 [2020-12-22 07:17:03,074 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 07:17:03,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-12-22 07:17:03,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 542. [2020-12-22 07:17:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-12-22 07:17:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 751 transitions. [2020-12-22 07:17:03,124 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 751 transitions. Word has length 177 [2020-12-22 07:17:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:03,125 INFO L481 AbstractCegarLoop]: Abstraction has 542 states and 751 transitions. [2020-12-22 07:17:03,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:03,125 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 751 transitions. [2020-12-22 07:17:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-12-22 07:17:03,129 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:03,130 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:03,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 07:17:03,130 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:03,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1599154325, now seen corresponding path program 1 times [2020-12-22 07:17:03,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:03,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474410326] [2020-12-22 07:17:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:03,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474410326] [2020-12-22 07:17:03,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:03,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:03,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184949523] [2020-12-22 07:17:03,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:03,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:03,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:03,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:03,265 INFO L87 Difference]: Start difference. First operand 542 states and 751 transitions. Second operand 3 states. [2020-12-22 07:17:03,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:03,368 INFO L93 Difference]: Finished difference Result 1108 states and 1589 transitions. [2020-12-22 07:17:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:03,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-12-22 07:17:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:03,375 INFO L225 Difference]: With dead ends: 1108 [2020-12-22 07:17:03,375 INFO L226 Difference]: Without dead ends: 805 [2020-12-22 07:17:03,377 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 07:17:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-12-22 07:17:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 628. [2020-12-22 07:17:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-12-22 07:17:03,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 879 transitions. [2020-12-22 07:17:03,429 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 879 transitions. Word has length 178 [2020-12-22 07:17:03,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:03,429 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 879 transitions. [2020-12-22 07:17:03,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:03,429 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 879 transitions. [2020-12-22 07:17:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-12-22 07:17:03,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:03,435 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:03,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 07:17:03,435 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:03,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:03,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2021856151, now seen corresponding path program 1 times [2020-12-22 07:17:03,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:03,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590229502] [2020-12-22 07:17:03,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:17:03,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590229502] [2020-12-22 07:17:03,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854193324] [2020-12-22 07:17:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:03,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 07:17:03,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:04,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 07:17:04,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 07:17:04,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714250834] [2020-12-22 07:17:04,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:04,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:04,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:04,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:04,076 INFO L87 Difference]: Start difference. First operand 628 states and 879 transitions. Second operand 3 states. [2020-12-22 07:17:04,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:04,192 INFO L93 Difference]: Finished difference Result 1256 states and 1747 transitions. [2020-12-22 07:17:04,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:04,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-12-22 07:17:04,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:04,199 INFO L225 Difference]: With dead ends: 1256 [2020-12-22 07:17:04,199 INFO L226 Difference]: Without dead ends: 875 [2020-12-22 07:17:04,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-12-22 07:17:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 628. [2020-12-22 07:17:04,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-12-22 07:17:04,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 870 transitions. [2020-12-22 07:17:04,244 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 870 transitions. Word has length 178 [2020-12-22 07:17:04,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:04,244 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 870 transitions. [2020-12-22 07:17:04,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 870 transitions. [2020-12-22 07:17:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-22 07:17:04,247 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:04,247 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:04,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-22 07:17:04,450 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:04,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:04,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1934782051, now seen corresponding path program 1 times [2020-12-22 07:17:04,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:04,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81217834] [2020-12-22 07:17:04,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:17:04,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81217834] [2020-12-22 07:17:04,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065964324] [2020-12-22 07:17:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:04,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 07:17:04,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:04,933 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:04,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 07:17:04,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 07:17:04,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144637980] [2020-12-22 07:17:04,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:04,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:04,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:04,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:04,935 INFO L87 Difference]: Start difference. First operand 628 states and 870 transitions. Second operand 3 states. [2020-12-22 07:17:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:05,054 INFO L93 Difference]: Finished difference Result 1481 states and 2092 transitions. [2020-12-22 07:17:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:05,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-12-22 07:17:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:05,060 INFO L225 Difference]: With dead ends: 1481 [2020-12-22 07:17:05,061 INFO L226 Difference]: Without dead ends: 1100 [2020-12-22 07:17:05,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-12-22 07:17:05,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 628. [2020-12-22 07:17:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-12-22 07:17:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 869 transitions. [2020-12-22 07:17:05,110 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 869 transitions. Word has length 179 [2020-12-22 07:17:05,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:05,110 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 869 transitions. [2020-12-22 07:17:05,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:05,111 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 869 transitions. [2020-12-22 07:17:05,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-12-22 07:17:05,113 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:05,113 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:05,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:05,328 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:05,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:05,330 INFO L82 PathProgramCache]: Analyzing trace with hash 356758881, now seen corresponding path program 1 times [2020-12-22 07:17:05,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:05,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208063155] [2020-12-22 07:17:05,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:05,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208063155] [2020-12-22 07:17:05,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:05,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:05,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100885143] [2020-12-22 07:17:05,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:05,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:05,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:05,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:05,454 INFO L87 Difference]: Start difference. First operand 628 states and 869 transitions. Second operand 3 states. [2020-12-22 07:17:05,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:05,498 INFO L93 Difference]: Finished difference Result 1011 states and 1430 transitions. [2020-12-22 07:17:05,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:05,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-12-22 07:17:05,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:05,502 INFO L225 Difference]: With dead ends: 1011 [2020-12-22 07:17:05,502 INFO L226 Difference]: Without dead ends: 610 [2020-12-22 07:17:05,503 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 07:17:05,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-12-22 07:17:05,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2020-12-22 07:17:05,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2020-12-22 07:17:05,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 835 transitions. [2020-12-22 07:17:05,572 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 835 transitions. Word has length 180 [2020-12-22 07:17:05,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:05,572 INFO L481 AbstractCegarLoop]: Abstraction has 610 states and 835 transitions. [2020-12-22 07:17:05,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 835 transitions. [2020-12-22 07:17:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-12-22 07:17:05,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:05,576 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:05,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 07:17:05,576 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:05,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:05,577 INFO L82 PathProgramCache]: Analyzing trace with hash -970239779, now seen corresponding path program 1 times [2020-12-22 07:17:05,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:05,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176809692] [2020-12-22 07:17:05,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:17:05,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176809692] [2020-12-22 07:17:05,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411009710] [2020-12-22 07:17:05,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:05,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 07:17:05,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:06,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 07:17:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:06,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 07:17:06,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-12-22 07:17:06,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709193710] [2020-12-22 07:17:06,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:17:06,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:06,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:17:06,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 07:17:06,116 INFO L87 Difference]: Start difference. First operand 610 states and 835 transitions. Second operand 5 states. [2020-12-22 07:17:06,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:06,312 INFO L93 Difference]: Finished difference Result 1581 states and 2220 transitions. [2020-12-22 07:17:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:17:06,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2020-12-22 07:17:06,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:06,321 INFO L225 Difference]: With dead ends: 1581 [2020-12-22 07:17:06,321 INFO L226 Difference]: Without dead ends: 1579 [2020-12-22 07:17:06,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-12-22 07:17:06,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2020-12-22 07:17:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 612. [2020-12-22 07:17:06,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-12-22 07:17:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 837 transitions. [2020-12-22 07:17:06,375 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 837 transitions. Word has length 180 [2020-12-22 07:17:06,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:06,376 INFO L481 AbstractCegarLoop]: Abstraction has 612 states and 837 transitions. [2020-12-22 07:17:06,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:17:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 837 transitions. [2020-12-22 07:17:06,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-12-22 07:17:06,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:06,379 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:06,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-22 07:17:06,593 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:06,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:06,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1672767509, now seen corresponding path program 1 times [2020-12-22 07:17:06,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:06,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109601860] [2020-12-22 07:17:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:06,809 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 07:17:06,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109601860] [2020-12-22 07:17:06,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942534715] [2020-12-22 07:17:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:07,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 07:17:07,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 07:17:07,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:17:07,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-12-22 07:17:07,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055865795] [2020-12-22 07:17:07,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 07:17:07,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:07,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 07:17:07,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-22 07:17:07,325 INFO L87 Difference]: Start difference. First operand 612 states and 837 transitions. Second operand 11 states. [2020-12-22 07:17:08,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:08,216 INFO L93 Difference]: Finished difference Result 3671 states and 5205 transitions. [2020-12-22 07:17:08,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 07:17:08,217 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 183 [2020-12-22 07:17:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:08,236 INFO L225 Difference]: With dead ends: 3671 [2020-12-22 07:17:08,236 INFO L226 Difference]: Without dead ends: 3302 [2020-12-22 07:17:08,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2020-12-22 07:17:08,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2020-12-22 07:17:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 820. [2020-12-22 07:17:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2020-12-22 07:17:08,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1105 transitions. [2020-12-22 07:17:08,369 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1105 transitions. Word has length 183 [2020-12-22 07:17:08,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:08,370 INFO L481 AbstractCegarLoop]: Abstraction has 820 states and 1105 transitions. [2020-12-22 07:17:08,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 07:17:08,370 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1105 transitions. [2020-12-22 07:17:08,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-12-22 07:17:08,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:08,373 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:08,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:08,588 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:08,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:08,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1342336109, now seen corresponding path program 1 times [2020-12-22 07:17:08,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:08,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232354398] [2020-12-22 07:17:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:08,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232354398] [2020-12-22 07:17:08,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:08,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:08,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675448981] [2020-12-22 07:17:08,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:08,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:08,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:08,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:08,694 INFO L87 Difference]: Start difference. First operand 820 states and 1105 transitions. Second operand 3 states. [2020-12-22 07:17:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:08,866 INFO L93 Difference]: Finished difference Result 1825 states and 2496 transitions. [2020-12-22 07:17:08,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:08,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-12-22 07:17:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:08,892 INFO L225 Difference]: With dead ends: 1825 [2020-12-22 07:17:08,892 INFO L226 Difference]: Without dead ends: 1456 [2020-12-22 07:17:08,894 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 07:17:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2020-12-22 07:17:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 820. [2020-12-22 07:17:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2020-12-22 07:17:08,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1103 transitions. [2020-12-22 07:17:08,969 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1103 transitions. Word has length 183 [2020-12-22 07:17:08,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:08,969 INFO L481 AbstractCegarLoop]: Abstraction has 820 states and 1103 transitions. [2020-12-22 07:17:08,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:08,969 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1103 transitions. [2020-12-22 07:17:08,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-12-22 07:17:08,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:08,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:08,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 07:17:08,973 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:08,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:08,974 INFO L82 PathProgramCache]: Analyzing trace with hash -759019257, now seen corresponding path program 1 times [2020-12-22 07:17:08,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:08,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483647335] [2020-12-22 07:17:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:09,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483647335] [2020-12-22 07:17:09,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:09,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:09,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922390856] [2020-12-22 07:17:09,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:09,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:09,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:09,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:09,082 INFO L87 Difference]: Start difference. First operand 820 states and 1103 transitions. Second operand 3 states. [2020-12-22 07:17:09,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:09,176 INFO L93 Difference]: Finished difference Result 1372 states and 1859 transitions. [2020-12-22 07:17:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:09,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2020-12-22 07:17:09,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:09,192 INFO L225 Difference]: With dead ends: 1372 [2020-12-22 07:17:09,193 INFO L226 Difference]: Without dead ends: 673 [2020-12-22 07:17:09,194 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 07:17:09,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2020-12-22 07:17:09,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 672. [2020-12-22 07:17:09,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2020-12-22 07:17:09,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 882 transitions. [2020-12-22 07:17:09,257 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 882 transitions. Word has length 186 [2020-12-22 07:17:09,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:09,257 INFO L481 AbstractCegarLoop]: Abstraction has 672 states and 882 transitions. [2020-12-22 07:17:09,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:09,258 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 882 transitions. [2020-12-22 07:17:09,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-12-22 07:17:09,260 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:09,261 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:09,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 07:17:09,261 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:09,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:09,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1115601649, now seen corresponding path program 1 times [2020-12-22 07:17:09,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:09,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362073398] [2020-12-22 07:17:09,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:09,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362073398] [2020-12-22 07:17:09,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:09,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 07:17:09,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952524355] [2020-12-22 07:17:09,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 07:17:09,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:09,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 07:17:09,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 07:17:09,469 INFO L87 Difference]: Start difference. First operand 672 states and 882 transitions. Second operand 7 states. [2020-12-22 07:17:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:09,868 INFO L93 Difference]: Finished difference Result 1446 states and 1930 transitions. [2020-12-22 07:17:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:17:09,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-12-22 07:17:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:09,872 INFO L225 Difference]: With dead ends: 1446 [2020-12-22 07:17:09,873 INFO L226 Difference]: Without dead ends: 1088 [2020-12-22 07:17:09,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-22 07:17:09,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2020-12-22 07:17:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 784. [2020-12-22 07:17:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2020-12-22 07:17:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1022 transitions. [2020-12-22 07:17:09,946 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1022 transitions. Word has length 191 [2020-12-22 07:17:09,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:09,946 INFO L481 AbstractCegarLoop]: Abstraction has 784 states and 1022 transitions. [2020-12-22 07:17:09,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 07:17:09,947 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1022 transitions. [2020-12-22 07:17:09,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-12-22 07:17:09,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:09,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:09,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 07:17:09,950 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:09,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:09,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1484290453, now seen corresponding path program 1 times [2020-12-22 07:17:09,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:09,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029569141] [2020-12-22 07:17:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:10,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029569141] [2020-12-22 07:17:10,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:10,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 07:17:10,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79059158] [2020-12-22 07:17:10,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 07:17:10,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:10,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 07:17:10,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:10,086 INFO L87 Difference]: Start difference. First operand 784 states and 1022 transitions. Second operand 6 states. [2020-12-22 07:17:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:10,344 INFO L93 Difference]: Finished difference Result 2578 states and 3483 transitions. [2020-12-22 07:17:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 07:17:10,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 197 [2020-12-22 07:17:10,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:10,351 INFO L225 Difference]: With dead ends: 2578 [2020-12-22 07:17:10,351 INFO L226 Difference]: Without dead ends: 2102 [2020-12-22 07:17:10,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2020-12-22 07:17:10,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 861. [2020-12-22 07:17:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-12-22 07:17:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1120 transitions. [2020-12-22 07:17:10,451 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1120 transitions. Word has length 197 [2020-12-22 07:17:10,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:10,452 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1120 transitions. [2020-12-22 07:17:10,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 07:17:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1120 transitions. [2020-12-22 07:17:10,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-12-22 07:17:10,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:10,455 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:10,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 07:17:10,456 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:10,457 INFO L82 PathProgramCache]: Analyzing trace with hash -725967573, now seen corresponding path program 1 times [2020-12-22 07:17:10,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:10,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823020842] [2020-12-22 07:17:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:10,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823020842] [2020-12-22 07:17:10,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:10,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 07:17:10,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393310238] [2020-12-22 07:17:10,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 07:17:10,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:10,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 07:17:10,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-22 07:17:10,733 INFO L87 Difference]: Start difference. First operand 861 states and 1120 transitions. Second operand 10 states. [2020-12-22 07:17:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:11,968 INFO L93 Difference]: Finished difference Result 2457 states and 3237 transitions. [2020-12-22 07:17:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 07:17:11,969 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2020-12-22 07:17:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:11,974 INFO L225 Difference]: With dead ends: 2457 [2020-12-22 07:17:11,974 INFO L226 Difference]: Without dead ends: 1907 [2020-12-22 07:17:11,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:17:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2020-12-22 07:17:12,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 856. [2020-12-22 07:17:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 856 states. [2020-12-22 07:17:12,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1112 transitions. [2020-12-22 07:17:12,096 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1112 transitions. Word has length 197 [2020-12-22 07:17:12,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:12,096 INFO L481 AbstractCegarLoop]: Abstraction has 856 states and 1112 transitions. [2020-12-22 07:17:12,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 07:17:12,097 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1112 transitions. [2020-12-22 07:17:12,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-12-22 07:17:12,100 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:12,100 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:12,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 07:17:12,101 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:12,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:12,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1846866791, now seen corresponding path program 1 times [2020-12-22 07:17:12,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:12,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197733750] [2020-12-22 07:17:12,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:12,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197733750] [2020-12-22 07:17:12,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:12,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 07:17:12,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923363104] [2020-12-22 07:17:12,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 07:17:12,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:12,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 07:17:12,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 07:17:12,419 INFO L87 Difference]: Start difference. First operand 856 states and 1112 transitions. Second operand 10 states. [2020-12-22 07:17:13,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,411 INFO L93 Difference]: Finished difference Result 2441 states and 3216 transitions. [2020-12-22 07:17:13,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 07:17:13,412 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2020-12-22 07:17:13,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,417 INFO L225 Difference]: With dead ends: 2441 [2020-12-22 07:17:13,417 INFO L226 Difference]: Without dead ends: 1891 [2020-12-22 07:17:13,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:17:13,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2020-12-22 07:17:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 844. [2020-12-22 07:17:13,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-12-22 07:17:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1097 transitions. [2020-12-22 07:17:13,507 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1097 transitions. Word has length 197 [2020-12-22 07:17:13,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,507 INFO L481 AbstractCegarLoop]: Abstraction has 844 states and 1097 transitions. [2020-12-22 07:17:13,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 07:17:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1097 transitions. [2020-12-22 07:17:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-12-22 07:17:13,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,511 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:13,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 07:17:13,511 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,512 INFO L82 PathProgramCache]: Analyzing trace with hash 2030555812, now seen corresponding path program 1 times [2020-12-22 07:17:13,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898001825] [2020-12-22 07:17:13,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-12-22 07:17:13,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898001825] [2020-12-22 07:17:13,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:13,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197277920] [2020-12-22 07:17:13,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:13,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:13,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:13,610 INFO L87 Difference]: Start difference. First operand 844 states and 1097 transitions. Second operand 4 states. [2020-12-22 07:17:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,866 INFO L93 Difference]: Finished difference Result 1611 states and 2121 transitions. [2020-12-22 07:17:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:13,867 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2020-12-22 07:17:13,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,870 INFO L225 Difference]: With dead ends: 1611 [2020-12-22 07:17:13,870 INFO L226 Difference]: Without dead ends: 1067 [2020-12-22 07:17:13,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:17:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2020-12-22 07:17:13,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 818. [2020-12-22 07:17:13,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-12-22 07:17:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1045 transitions. [2020-12-22 07:17:13,961 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1045 transitions. Word has length 207 [2020-12-22 07:17:13,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,962 INFO L481 AbstractCegarLoop]: Abstraction has 818 states and 1045 transitions. [2020-12-22 07:17:13,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:13,962 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1045 transitions. [2020-12-22 07:17:13,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-12-22 07:17:13,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:13,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 07:17:13,967 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1428912634, now seen corresponding path program 1 times [2020-12-22 07:17:13,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152877472] [2020-12-22 07:17:13,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 39 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:14,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152877472] [2020-12-22 07:17:14,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820384893] [2020-12-22 07:17:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:14,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 07:17:14,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:14,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:17:14,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2020-12-22 07:17:14,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439453179] [2020-12-22 07:17:14,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 07:17:14,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:14,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 07:17:14,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:17:14,892 INFO L87 Difference]: Start difference. First operand 818 states and 1045 transitions. Second operand 19 states. [2020-12-22 07:17:53,611 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-22 07:17:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:57,422 INFO L93 Difference]: Finished difference Result 19641 states and 26164 transitions. [2020-12-22 07:17:57,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 608 states. [2020-12-22 07:17:57,423 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 231 [2020-12-22 07:17:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:57,479 INFO L225 Difference]: With dead ends: 19641 [2020-12-22 07:17:57,479 INFO L226 Difference]: Without dead ends: 19091 [2020-12-22 07:17:57,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 622 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180787 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=32021, Invalid=356731, Unknown=0, NotChecked=0, Total=388752 [2020-12-22 07:17:57,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19091 states. [2020-12-22 07:17:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19091 to 2273. [2020-12-22 07:17:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2273 states. [2020-12-22 07:17:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2891 transitions. [2020-12-22 07:17:58,256 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2891 transitions. Word has length 231 [2020-12-22 07:17:58,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:58,256 INFO L481 AbstractCegarLoop]: Abstraction has 2273 states and 2891 transitions. [2020-12-22 07:17:58,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 07:17:58,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2891 transitions. [2020-12-22 07:17:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-12-22 07:17:58,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:58,262 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:58,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-12-22 07:17:58,473 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:58,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:58,474 INFO L82 PathProgramCache]: Analyzing trace with hash 232639546, now seen corresponding path program 1 times [2020-12-22 07:17:58,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:58,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114577789] [2020-12-22 07:17:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-12-22 07:17:58,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114577789] [2020-12-22 07:17:58,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:58,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:58,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234015404] [2020-12-22 07:17:58,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:17:58,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:58,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:17:58,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:58,739 INFO L87 Difference]: Start difference. First operand 2273 states and 2891 transitions. Second operand 5 states. [2020-12-22 07:17:59,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:59,271 INFO L93 Difference]: Finished difference Result 4219 states and 5388 transitions. [2020-12-22 07:17:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:59,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 231 [2020-12-22 07:17:59,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:59,278 INFO L225 Difference]: With dead ends: 4219 [2020-12-22 07:17:59,278 INFO L226 Difference]: Without dead ends: 2273 [2020-12-22 07:17:59,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:59,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2020-12-22 07:17:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2273. [2020-12-22 07:17:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2273 states. [2020-12-22 07:17:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2887 transitions. [2020-12-22 07:17:59,579 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2887 transitions. Word has length 231 [2020-12-22 07:17:59,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:59,580 INFO L481 AbstractCegarLoop]: Abstraction has 2273 states and 2887 transitions. [2020-12-22 07:17:59,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:17:59,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2887 transitions. [2020-12-22 07:17:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-12-22 07:17:59,585 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:59,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:59,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 07:17:59,586 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:59,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:59,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1856340548, now seen corresponding path program 1 times [2020-12-22 07:17:59,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:59,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006632214] [2020-12-22 07:17:59,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:18:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:18:00,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006632214] [2020-12-22 07:18:00,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182573824] [2020-12-22 07:18:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:18:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:18:00,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 07:18:00,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:18:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:18:00,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:18:00,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2020-12-22 07:18:00,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097792297] [2020-12-22 07:18:00,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 07:18:00,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:18:00,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 07:18:00,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:18:00,825 INFO L87 Difference]: Start difference. First operand 2273 states and 2887 transitions. Second operand 19 states. [2020-12-22 07:18:35,880 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-12-22 07:18:36,171 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-22 07:18:36,513 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-22 07:18:36,668 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-22 07:18:39,753 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-22 07:18:40,109 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:18:41,882 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-12-22 07:18:45,504 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:18:46,089 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-22 07:18:47,986 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-22 07:18:48,210 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-22 07:18:48,589 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-22 07:18:48,783 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:18:51,306 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-22 07:18:51,703 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-22 07:18:52,032 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-22 07:18:52,735 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-22 07:18:52,941 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-22 07:18:53,163 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-22 07:18:53,339 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-22 07:18:55,328 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-22 07:18:55,519 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-12-22 07:19:03,211 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:19:09,751 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-22 07:19:11,195 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-12-22 07:19:14,891 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-22 07:19:20,296 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-22 07:19:29,396 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-22 07:19:39,295 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-22 07:19:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:19:50,174 INFO L93 Difference]: Finished difference Result 36035 states and 46366 transitions. [2020-12-22 07:19:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 991 states. [2020-12-22 07:19:50,177 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 232 [2020-12-22 07:19:50,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:19:50,264 INFO L225 Difference]: With dead ends: 36035 [2020-12-22 07:19:50,265 INFO L226 Difference]: Without dead ends: 34163 [2020-12-22 07:19:50,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 1005 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491064 ImplicationChecksByTransitivity, 87.1s TimeCoverageRelationStatistics Valid=56416, Invalid=956626, Unknown=0, NotChecked=0, Total=1013042 [2020-12-22 07:19:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34163 states. [2020-12-22 07:19:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34163 to 4807. [2020-12-22 07:19:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4807 states. [2020-12-22 07:19:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 6138 transitions. [2020-12-22 07:19:51,670 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 6138 transitions. Word has length 232 [2020-12-22 07:19:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:19:51,670 INFO L481 AbstractCegarLoop]: Abstraction has 4807 states and 6138 transitions. [2020-12-22 07:19:51,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 07:19:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 6138 transitions. [2020-12-22 07:19:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-12-22 07:19:51,680 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:19:51,680 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:19:51,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-22 07:19:51,895 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:19:51,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:19:51,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1725151484, now seen corresponding path program 1 times [2020-12-22 07:19:51,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:19:51,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892798073] [2020-12-22 07:19:51,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:19:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:19:52,297 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-12-22 07:19:52,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892798073] [2020-12-22 07:19:52,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:19:52,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:19:52,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5276190] [2020-12-22 07:19:52,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:19:52,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:19:52,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:19:52,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:19:52,299 INFO L87 Difference]: Start difference. First operand 4807 states and 6138 transitions. Second operand 5 states. [2020-12-22 07:19:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:19:53,135 INFO L93 Difference]: Finished difference Result 9289 states and 11884 transitions. [2020-12-22 07:19:53,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:19:53,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2020-12-22 07:19:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:19:53,146 INFO L225 Difference]: With dead ends: 9289 [2020-12-22 07:19:53,147 INFO L226 Difference]: Without dead ends: 4825 [2020-12-22 07:19:53,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:19:53,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4825 states. [2020-12-22 07:19:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4825 to 4819. [2020-12-22 07:19:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4819 states. [2020-12-22 07:19:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 6138 transitions. [2020-12-22 07:19:54,071 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 6138 transitions. Word has length 232 [2020-12-22 07:19:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:19:54,072 INFO L481 AbstractCegarLoop]: Abstraction has 4819 states and 6138 transitions. [2020-12-22 07:19:54,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:19:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 6138 transitions. [2020-12-22 07:19:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-12-22 07:19:54,081 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:19:54,082 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:19:54,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 07:19:54,084 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:19:54,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:19:54,084 INFO L82 PathProgramCache]: Analyzing trace with hash -138581744, now seen corresponding path program 1 times [2020-12-22 07:19:54,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:19:54,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987084932] [2020-12-22 07:19:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:19:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:19:54,217 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-12-22 07:19:54,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987084932] [2020-12-22 07:19:54,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:19:54,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:19:54,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815491190] [2020-12-22 07:19:54,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:19:54,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:19:54,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:19:54,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:19:54,219 INFO L87 Difference]: Start difference. First operand 4819 states and 6138 transitions. Second operand 3 states. [2020-12-22 07:19:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:19:54,994 INFO L93 Difference]: Finished difference Result 9543 states and 12138 transitions. [2020-12-22 07:19:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:19:54,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-12-22 07:19:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:19:55,007 INFO L225 Difference]: With dead ends: 9543 [2020-12-22 07:19:55,007 INFO L226 Difference]: Without dead ends: 5079 [2020-12-22 07:19:55,015 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 07:19:55,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5079 states. [2020-12-22 07:19:55,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5079 to 4779. [2020-12-22 07:19:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4779 states. [2020-12-22 07:19:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 5898 transitions. [2020-12-22 07:19:55,723 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 5898 transitions. Word has length 232 [2020-12-22 07:19:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:19:55,724 INFO L481 AbstractCegarLoop]: Abstraction has 4779 states and 5898 transitions. [2020-12-22 07:19:55,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:19:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 5898 transitions. [2020-12-22 07:19:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-12-22 07:19:55,733 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:19:55,733 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:19:55,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 07:19:55,734 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:19:55,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:19:55,734 INFO L82 PathProgramCache]: Analyzing trace with hash 646207064, now seen corresponding path program 1 times [2020-12-22 07:19:55,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:19:55,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370716535] [2020-12-22 07:19:55,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:19:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:19:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 39 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:19:56,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370716535] [2020-12-22 07:19:56,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244471604] [2020-12-22 07:19:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:19:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:19:56,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-22 07:19:56,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:19:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 33 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:19:57,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:19:57,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2020-12-22 07:19:57,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136612320] [2020-12-22 07:19:57,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 07:19:57,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:19:57,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 07:19:57,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-12-22 07:19:57,609 INFO L87 Difference]: Start difference. First operand 4779 states and 5898 transitions. Second operand 20 states. [2020-12-22 07:20:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:20:25,363 INFO L93 Difference]: Finished difference Result 30154 states and 37719 transitions. [2020-12-22 07:20:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2020-12-22 07:20:25,366 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 238 [2020-12-22 07:20:25,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:20:25,393 INFO L225 Difference]: With dead ends: 30154 [2020-12-22 07:20:25,393 INFO L226 Difference]: Without dead ends: 25885 [2020-12-22 07:20:25,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8715 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=3426, Invalid=21380, Unknown=0, NotChecked=0, Total=24806 [2020-12-22 07:20:25,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25885 states. [2020-12-22 07:20:26,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25885 to 5151. [2020-12-22 07:20:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5151 states. [2020-12-22 07:20:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 6348 transitions. [2020-12-22 07:20:26,411 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 6348 transitions. Word has length 238 [2020-12-22 07:20:26,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:20:26,412 INFO L481 AbstractCegarLoop]: Abstraction has 5151 states and 6348 transitions. [2020-12-22 07:20:26,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-22 07:20:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 6348 transitions. [2020-12-22 07:20:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-12-22 07:20:26,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:20:26,422 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:20:26,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:20:26,638 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:20:26,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:20:26,639 INFO L82 PathProgramCache]: Analyzing trace with hash 658006449, now seen corresponding path program 1 times [2020-12-22 07:20:26,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:20:26,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473132166] [2020-12-22 07:20:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:20:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-12-22 07:20:26,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473132166] [2020-12-22 07:20:26,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:20:26,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:20:26,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923680383] [2020-12-22 07:20:26,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:20:26,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:20:26,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:20:26,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:20:26,724 INFO L87 Difference]: Start difference. First operand 5151 states and 6348 transitions. Second operand 3 states. [2020-12-22 07:20:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:20:27,426 INFO L93 Difference]: Finished difference Result 9920 states and 12226 transitions. [2020-12-22 07:20:27,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:20:27,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-12-22 07:20:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:20:27,434 INFO L225 Difference]: With dead ends: 9920 [2020-12-22 07:20:27,434 INFO L226 Difference]: Without dead ends: 4782 [2020-12-22 07:20:27,439 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 07:20:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2020-12-22 07:20:28,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 4782. [2020-12-22 07:20:28,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4782 states. [2020-12-22 07:20:28,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 5884 transitions. [2020-12-22 07:20:28,149 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 5884 transitions. Word has length 241 [2020-12-22 07:20:28,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:20:28,149 INFO L481 AbstractCegarLoop]: Abstraction has 4782 states and 5884 transitions. [2020-12-22 07:20:28,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:20:28,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 5884 transitions. [2020-12-22 07:20:28,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-12-22 07:20:28,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:20:28,156 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:20:28,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-22 07:20:28,156 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:20:28,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:20:28,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1596548256, now seen corresponding path program 1 times [2020-12-22 07:20:28,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:20:28,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305517767] [2020-12-22 07:20:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:20:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-12-22 07:20:28,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305517767] [2020-12-22 07:20:28,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:20:28,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:20:28,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718461997] [2020-12-22 07:20:28,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:20:28,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:20:28,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:20:28,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:20:28,408 INFO L87 Difference]: Start difference. First operand 4782 states and 5884 transitions. Second operand 5 states. [2020-12-22 07:20:29,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:20:29,316 INFO L93 Difference]: Finished difference Result 9175 states and 11329 transitions. [2020-12-22 07:20:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:20:29,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2020-12-22 07:20:29,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:20:29,325 INFO L225 Difference]: With dead ends: 9175 [2020-12-22 07:20:29,325 INFO L226 Difference]: Without dead ends: 4788 [2020-12-22 07:20:29,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:20:29,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4788 states. [2020-12-22 07:20:30,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4788 to 4770. [2020-12-22 07:20:30,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4770 states. [2020-12-22 07:20:30,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 5866 transitions. [2020-12-22 07:20:30,101 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 5866 transitions. Word has length 244 [2020-12-22 07:20:30,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:20:30,102 INFO L481 AbstractCegarLoop]: Abstraction has 4770 states and 5866 transitions. [2020-12-22 07:20:30,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:20:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 5866 transitions. [2020-12-22 07:20:30,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-12-22 07:20:30,108 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:20:30,108 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:20:30,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-22 07:20:30,108 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:20:30,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:20:30,109 INFO L82 PathProgramCache]: Analyzing trace with hash 212350267, now seen corresponding path program 1 times [2020-12-22 07:20:30,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:20:30,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249963651] [2020-12-22 07:20:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:20:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:30,578 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:20:30,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249963651] [2020-12-22 07:20:30,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312874295] [2020-12-22 07:20:30,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:20:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:30,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 07:20:30,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:20:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:20:31,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:20:31,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2020-12-22 07:20:31,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739885253] [2020-12-22 07:20:31,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 07:20:31,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:20:31,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 07:20:31,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 07:20:31,707 INFO L87 Difference]: Start difference. First operand 4770 states and 5866 transitions. Second operand 9 states. [2020-12-22 07:20:37,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:20:37,544 INFO L93 Difference]: Finished difference Result 26158 states and 32582 transitions. [2020-12-22 07:20:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-22 07:20:37,546 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 245 [2020-12-22 07:20:37,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:20:37,568 INFO L225 Difference]: With dead ends: 26158 [2020-12-22 07:20:37,568 INFO L226 Difference]: Without dead ends: 21919 [2020-12-22 07:20:37,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2020-12-22 07:20:37,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21919 states. [2020-12-22 07:20:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21919 to 12438. [2020-12-22 07:20:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12438 states. [2020-12-22 07:20:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12438 states to 12438 states and 15321 transitions. [2020-12-22 07:20:39,469 INFO L78 Accepts]: Start accepts. Automaton has 12438 states and 15321 transitions. Word has length 245 [2020-12-22 07:20:39,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:20:39,469 INFO L481 AbstractCegarLoop]: Abstraction has 12438 states and 15321 transitions. [2020-12-22 07:20:39,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 07:20:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 12438 states and 15321 transitions. [2020-12-22 07:20:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-12-22 07:20:39,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:20:39,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:20:39,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:20:39,707 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:20:39,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:20:39,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1819429307, now seen corresponding path program 1 times [2020-12-22 07:20:39,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:20:39,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624479897] [2020-12-22 07:20:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:20:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:40,129 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 25 [2020-12-22 07:20:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:20:40,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624479897] [2020-12-22 07:20:40,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585582515] [2020-12-22 07:20:40,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:20:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:40,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-22 07:20:40,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:20:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-12-22 07:20:42,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:20:42,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2020-12-22 07:20:42,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906116150] [2020-12-22 07:20:42,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 07:20:42,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:20:42,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 07:20:42,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2020-12-22 07:20:42,064 INFO L87 Difference]: Start difference. First operand 12438 states and 15321 transitions. Second operand 20 states. [2020-12-22 07:20:42,822 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2020-12-22 07:20:43,179 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-22 07:20:44,049 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-12-22 07:20:47,448 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-12-22 07:20:48,081 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39