/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:03:28,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:03:28,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:03:28,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:03:28,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:03:28,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:03:28,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:03:28,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:03:28,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:03:28,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:03:28,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:03:28,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:03:28,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:03:28,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:03:28,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:03:28,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:03:28,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:03:28,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:03:28,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:03:28,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:03:28,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:03:28,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:03:28,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:03:28,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:03:28,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 20:03:28,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:03:28,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:03:28,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:03:28,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 20:03:28,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:03:28,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:03:28,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:03:28,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:03:28,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:03:28,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:03:28,614 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:03:28,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:03:28,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:03:28,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:03:28,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:03:28,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:03:28,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:03:28,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:03:28,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:03:28,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:03:28,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:03:28,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:03:28,618 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:03:28,618 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:03:28,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:03:28,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:03:28,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:03:28,869 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:03:28,870 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:03:28,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-1.c [2022-01-10 20:03:28,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68de36551/948474b039e146d391525cbd49ee19fa/FLAG6f8773360 [2022-01-10 20:03:29,308 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:03:29,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-1.c [2022-01-10 20:03:29,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68de36551/948474b039e146d391525cbd49ee19fa/FLAG6f8773360 [2022-01-10 20:03:29,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68de36551/948474b039e146d391525cbd49ee19fa [2022-01-10 20:03:29,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:03:29,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:03:29,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:03:29,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:03:29,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:03:29,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:03:29" (1/1) ... [2022-01-10 20:03:29,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cda0e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:29, skipping insertion in model container [2022-01-10 20:03:29,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:03:29" (1/1) ... [2022-01-10 20:03:29,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:03:29,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:03:29,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-1.c[914,927] [2022-01-10 20:03:29,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-1.c[7115,7128] [2022-01-10 20:03:30,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:03:30,063 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:03:30,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-1.c[914,927] [2022-01-10 20:03:30,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-1.c[7115,7128] [2022-01-10 20:03:30,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:03:30,147 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:03:30,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30 WrapperNode [2022-01-10 20:03:30,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:03:30,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:03:30,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:03:30,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:03:30,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,266 INFO L137 Inliner]: procedures = 74, calls = 88, calls flagged for inlining = 83, calls inlined = 237, statements flattened = 3499 [2022-01-10 20:03:30,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:03:30,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:03:30,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:03:30,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:03:30,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:03:30,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:03:30,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:03:30,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:03:30,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (1/1) ... [2022-01-10 20:03:30,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:03:30,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:03:30,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 20:03:30,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 20:03:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:03:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:03:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:03:30,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:03:30,533 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:03:30,534 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:03:32,081 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:03:32,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:03:32,091 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-01-10 20:03:32,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:03:32 BoogieIcfgContainer [2022-01-10 20:03:32,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:03:32,093 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:03:32,093 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:03:32,094 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:03:32,096 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:03:32" (1/1) ... [2022-01-10 20:03:32,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:03:32 BasicIcfg [2022-01-10 20:03:32,400 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:03:32,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:03:32,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:03:32,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:03:32,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:03:29" (1/4) ... [2022-01-10 20:03:32,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ed9b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:03:32, skipping insertion in model container [2022-01-10 20:03:32,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:03:30" (2/4) ... [2022-01-10 20:03:32,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ed9b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:03:32, skipping insertion in model container [2022-01-10 20:03:32,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:03:32" (3/4) ... [2022-01-10 20:03:32,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ed9b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:03:32, skipping insertion in model container [2022-01-10 20:03:32,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:03:32" (4/4) ... [2022-01-10 20:03:32,406 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.10.cil-1.cTransformedIcfg [2022-01-10 20:03:32,410 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:03:32,410 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 20:03:32,466 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:03:32,470 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 20:03:32,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 20:03:32,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 1479 states, 1474 states have (on average 1.5128900949796473) internal successors, (2230), 1478 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:32,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:03:32,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:32,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:32,505 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:32,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1775123982, now seen corresponding path program 1 times [2022-01-10 20:03:32,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:32,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312287497] [2022-01-10 20:03:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:32,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:32,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:32,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312287497] [2022-01-10 20:03:32,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312287497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:32,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:32,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:32,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731740207] [2022-01-10 20:03:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:32,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:32,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:32,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:32,789 INFO L87 Difference]: Start difference. First operand has 1479 states, 1474 states have (on average 1.5128900949796473) internal successors, (2230), 1478 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:32,955 INFO L93 Difference]: Finished difference Result 2902 states and 4361 transitions. [2022-01-10 20:03:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 20:03:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:32,976 INFO L225 Difference]: With dead ends: 2902 [2022-01-10 20:03:32,976 INFO L226 Difference]: Without dead ends: 1562 [2022-01-10 20:03:32,981 INFO L932 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 [2022-01-10 20:03:32,984 INFO L933 BasicCegarLoop]: 2184 mSDtfsCounter, 124 mSDsluCounter, 2154 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:32,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 4338 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:03:33,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-01-10 20:03:33,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1558. [2022-01-10 20:03:33,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1554 states have (on average 1.4813384813384813) internal successors, (2302), 1557 states have internal predecessors, (2302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2302 transitions. [2022-01-10 20:03:33,081 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2302 transitions. Word has length 44 [2022-01-10 20:03:33,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:33,081 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 2302 transitions. [2022-01-10 20:03:33,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2302 transitions. [2022-01-10 20:03:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:03:33,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:33,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:33,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:03:33,087 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1314630193, now seen corresponding path program 1 times [2022-01-10 20:03:33,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:33,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350741291] [2022-01-10 20:03:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:33,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:33,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:33,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350741291] [2022-01-10 20:03:33,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350741291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:33,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:33,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:33,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435540154] [2022-01-10 20:03:33,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:33,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:33,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:33,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:33,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:33,203 INFO L87 Difference]: Start difference. First operand 1558 states and 2302 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:33,267 INFO L93 Difference]: Finished difference Result 1844 states and 2700 transitions. [2022-01-10 20:03:33,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:33,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 20:03:33,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:33,275 INFO L225 Difference]: With dead ends: 1844 [2022-01-10 20:03:33,276 INFO L226 Difference]: Without dead ends: 1714 [2022-01-10 20:03:33,277 INFO L932 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 [2022-01-10 20:03:33,280 INFO L933 BasicCegarLoop]: 2177 mSDtfsCounter, 2130 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:33,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2130 Valid, 2295 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:33,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2022-01-10 20:03:33,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1710. [2022-01-10 20:03:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1706 states have (on average 1.47010550996483) internal successors, (2508), 1709 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 2508 transitions. [2022-01-10 20:03:33,350 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 2508 transitions. Word has length 44 [2022-01-10 20:03:33,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:33,351 INFO L470 AbstractCegarLoop]: Abstraction has 1710 states and 2508 transitions. [2022-01-10 20:03:33,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 2508 transitions. [2022-01-10 20:03:33,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 20:03:33,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:33,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:33,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:03:33,361 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:33,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:33,362 INFO L85 PathProgramCache]: Analyzing trace with hash 792152546, now seen corresponding path program 1 times [2022-01-10 20:03:33,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:33,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651724823] [2022-01-10 20:03:33,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:33,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:33,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:33,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651724823] [2022-01-10 20:03:33,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651724823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:33,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:33,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:33,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411656270] [2022-01-10 20:03:33,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:33,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:33,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:33,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:33,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:33,437 INFO L87 Difference]: Start difference. First operand 1710 states and 2508 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:33,535 INFO L93 Difference]: Finished difference Result 2258 states and 3268 transitions. [2022-01-10 20:03:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:33,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 20:03:33,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:33,540 INFO L225 Difference]: With dead ends: 2258 [2022-01-10 20:03:33,540 INFO L226 Difference]: Without dead ends: 1923 [2022-01-10 20:03:33,541 INFO L932 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 [2022-01-10 20:03:33,542 INFO L933 BasicCegarLoop]: 2172 mSDtfsCounter, 94 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:33,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 4288 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:03:33,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-01-10 20:03:33,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1909. [2022-01-10 20:03:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1905 states have (on average 1.457217847769029) internal successors, (2776), 1908 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2776 transitions. [2022-01-10 20:03:33,578 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2776 transitions. Word has length 45 [2022-01-10 20:03:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:33,578 INFO L470 AbstractCegarLoop]: Abstraction has 1909 states and 2776 transitions. [2022-01-10 20:03:33,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2776 transitions. [2022-01-10 20:03:33,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 20:03:33,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:33,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:33,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 20:03:33,580 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash 821735009, now seen corresponding path program 1 times [2022-01-10 20:03:33,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:33,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984091404] [2022-01-10 20:03:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:33,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:33,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:33,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984091404] [2022-01-10 20:03:33,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984091404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:33,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:33,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:33,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389378982] [2022-01-10 20:03:33,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:33,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:33,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:33,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:33,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:33,617 INFO L87 Difference]: Start difference. First operand 1909 states and 2776 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:33,688 INFO L93 Difference]: Finished difference Result 2797 states and 3988 transitions. [2022-01-10 20:03:33,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:33,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 20:03:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:33,695 INFO L225 Difference]: With dead ends: 2797 [2022-01-10 20:03:33,695 INFO L226 Difference]: Without dead ends: 2321 [2022-01-10 20:03:33,696 INFO L932 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 [2022-01-10 20:03:33,697 INFO L933 BasicCegarLoop]: 2172 mSDtfsCounter, 2128 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:33,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2128 Valid, 2261 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2022-01-10 20:03:33,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2289. [2022-01-10 20:03:33,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 2285 states have (on average 1.4336980306345732) internal successors, (3276), 2288 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3276 transitions. [2022-01-10 20:03:33,751 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3276 transitions. Word has length 45 [2022-01-10 20:03:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:33,752 INFO L470 AbstractCegarLoop]: Abstraction has 2289 states and 3276 transitions. [2022-01-10 20:03:33,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3276 transitions. [2022-01-10 20:03:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 20:03:33,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:33,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:33,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 20:03:33,753 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:33,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:33,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2064145726, now seen corresponding path program 1 times [2022-01-10 20:03:33,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:33,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487133737] [2022-01-10 20:03:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:33,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:33,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:33,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487133737] [2022-01-10 20:03:33,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487133737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:33,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:33,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:33,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209348855] [2022-01-10 20:03:33,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:33,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:33,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:33,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:33,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:33,818 INFO L87 Difference]: Start difference. First operand 2289 states and 3276 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:33,877 INFO L93 Difference]: Finished difference Result 3492 states and 4889 transitions. [2022-01-10 20:03:33,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:33,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 20:03:33,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:33,885 INFO L225 Difference]: With dead ends: 3492 [2022-01-10 20:03:33,885 INFO L226 Difference]: Without dead ends: 2608 [2022-01-10 20:03:33,886 INFO L932 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 [2022-01-10 20:03:33,887 INFO L933 BasicCegarLoop]: 2176 mSDtfsCounter, 2125 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:33,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2125 Valid, 2265 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:33,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2022-01-10 20:03:33,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2586. [2022-01-10 20:03:33,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 2582 states have (on average 1.4178931061192874) internal successors, (3661), 2585 states have internal predecessors, (3661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3661 transitions. [2022-01-10 20:03:33,984 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3661 transitions. Word has length 51 [2022-01-10 20:03:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:33,986 INFO L470 AbstractCegarLoop]: Abstraction has 2586 states and 3661 transitions. [2022-01-10 20:03:33,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:33,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3661 transitions. [2022-01-10 20:03:33,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 20:03:33,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:33,989 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 20:03:33,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 20:03:33,989 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:33,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:33,989 INFO L85 PathProgramCache]: Analyzing trace with hash -470711915, now seen corresponding path program 1 times [2022-01-10 20:03:33,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:33,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275182910] [2022-01-10 20:03:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:33,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 20:03:34,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:34,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275182910] [2022-01-10 20:03:34,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275182910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:34,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:34,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:03:34,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442840863] [2022-01-10 20:03:34,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:34,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:03:34,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:03:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:03:34,059 INFO L87 Difference]: Start difference. First operand 2586 states and 3661 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:34,202 INFO L93 Difference]: Finished difference Result 4305 states and 5990 transitions. [2022-01-10 20:03:34,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:03:34,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 20:03:34,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:34,213 INFO L225 Difference]: With dead ends: 4305 [2022-01-10 20:03:34,213 INFO L226 Difference]: Without dead ends: 3164 [2022-01-10 20:03:34,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:03:34,220 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 354 mSDsluCounter, 6624 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 8789 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:34,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 8789 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:34,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2022-01-10 20:03:34,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 2604. [2022-01-10 20:03:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2604 states, 2600 states have (on average 1.4073076923076924) internal successors, (3659), 2603 states have internal predecessors, (3659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 3659 transitions. [2022-01-10 20:03:34,296 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 3659 transitions. Word has length 52 [2022-01-10 20:03:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:34,296 INFO L470 AbstractCegarLoop]: Abstraction has 2604 states and 3659 transitions. [2022-01-10 20:03:34,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 3659 transitions. [2022-01-10 20:03:34,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 20:03:34,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:34,297 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 20:03:34,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 20:03:34,298 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:34,298 INFO L85 PathProgramCache]: Analyzing trace with hash -459395788, now seen corresponding path program 1 times [2022-01-10 20:03:34,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:34,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726003357] [2022-01-10 20:03:34,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:34,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:34,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:34,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726003357] [2022-01-10 20:03:34,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726003357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:34,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:34,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:03:34,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995457241] [2022-01-10 20:03:34,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:34,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:03:34,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:34,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:03:34,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:03:34,350 INFO L87 Difference]: Start difference. First operand 2604 states and 3659 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:34,482 INFO L93 Difference]: Finished difference Result 2830 states and 3955 transitions. [2022-01-10 20:03:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 20:03:34,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 20:03:34,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:34,490 INFO L225 Difference]: With dead ends: 2830 [2022-01-10 20:03:34,490 INFO L226 Difference]: Without dead ends: 2828 [2022-01-10 20:03:34,490 INFO L932 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 [2022-01-10 20:03:34,491 INFO L933 BasicCegarLoop]: 2173 mSDtfsCounter, 4392 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4392 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:34,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4392 Valid, 2261 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:34,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2022-01-10 20:03:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2602. [2022-01-10 20:03:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2599 states have (on average 1.4043863024240093) internal successors, (3650), 2601 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 3650 transitions. [2022-01-10 20:03:34,589 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 3650 transitions. Word has length 52 [2022-01-10 20:03:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:34,589 INFO L470 AbstractCegarLoop]: Abstraction has 2602 states and 3650 transitions. [2022-01-10 20:03:34,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 3650 transitions. [2022-01-10 20:03:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 20:03:34,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:34,590 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 20:03:34,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 20:03:34,590 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:34,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:34,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1356362854, now seen corresponding path program 1 times [2022-01-10 20:03:34,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:34,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227408209] [2022-01-10 20:03:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:34,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:34,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:34,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227408209] [2022-01-10 20:03:34,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227408209] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 20:03:34,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620221238] [2022-01-10 20:03:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:34,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:03:34,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:03:34,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:03:34,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 20:03:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:34,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 20:03:34,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:03:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:35,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:03:35,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:35,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620221238] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:03:35,398 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 20:03:35,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-10 20:03:35,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528426428] [2022-01-10 20:03:35,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 20:03:35,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 20:03:35,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:35,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 20:03:35,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:03:35,400 INFO L87 Difference]: Start difference. First operand 2602 states and 3650 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:35,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:35,829 INFO L93 Difference]: Finished difference Result 4899 states and 6712 transitions. [2022-01-10 20:03:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 20:03:35,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-10 20:03:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:35,847 INFO L225 Difference]: With dead ends: 4899 [2022-01-10 20:03:35,847 INFO L226 Difference]: Without dead ends: 4897 [2022-01-10 20:03:35,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:03:35,852 INFO L933 BasicCegarLoop]: 2326 mSDtfsCounter, 2723 mSDsluCounter, 7262 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 9588 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:35,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2723 Valid, 9588 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2022-01-10 20:03:36,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 3547. [2022-01-10 20:03:36,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 3544 states have (on average 1.385158013544018) internal successors, (4909), 3546 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4909 transitions. [2022-01-10 20:03:36,096 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4909 transitions. Word has length 53 [2022-01-10 20:03:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:36,097 INFO L470 AbstractCegarLoop]: Abstraction has 3547 states and 4909 transitions. [2022-01-10 20:03:36,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4909 transitions. [2022-01-10 20:03:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 20:03:36,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:36,099 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 20:03:36,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 20:03:36,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:03:36,321 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:36,321 INFO L85 PathProgramCache]: Analyzing trace with hash -336496988, now seen corresponding path program 2 times [2022-01-10 20:03:36,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:36,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13618887] [2022-01-10 20:03:36,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:36,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:36,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:36,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13618887] [2022-01-10 20:03:36,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13618887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:36,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:36,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:36,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83717225] [2022-01-10 20:03:36,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:36,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:36,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:36,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:36,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:36,363 INFO L87 Difference]: Start difference. First operand 3547 states and 4909 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:36,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:36,493 INFO L93 Difference]: Finished difference Result 4611 states and 6334 transitions. [2022-01-10 20:03:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:36,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 20:03:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:36,502 INFO L225 Difference]: With dead ends: 4611 [2022-01-10 20:03:36,502 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 20:03:36,505 INFO L932 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 [2022-01-10 20:03:36,506 INFO L933 BasicCegarLoop]: 2238 mSDtfsCounter, 2119 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:36,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2119 Valid, 2355 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 20:03:36,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2909. [2022-01-10 20:03:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2906 states have (on average 1.3850653819683414) internal successors, (4025), 2908 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4025 transitions. [2022-01-10 20:03:36,669 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4025 transitions. Word has length 56 [2022-01-10 20:03:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:36,669 INFO L470 AbstractCegarLoop]: Abstraction has 2909 states and 4025 transitions. [2022-01-10 20:03:36,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4025 transitions. [2022-01-10 20:03:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 20:03:36,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:36,671 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 20:03:36,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 20:03:36,671 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:36,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:36,672 INFO L85 PathProgramCache]: Analyzing trace with hash 595488896, now seen corresponding path program 1 times [2022-01-10 20:03:36,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:36,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016422365] [2022-01-10 20:03:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:36,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:36,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:36,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016422365] [2022-01-10 20:03:36,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016422365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:36,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:36,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:36,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456176462] [2022-01-10 20:03:36,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:36,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:36,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:36,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:36,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:36,719 INFO L87 Difference]: Start difference. First operand 2909 states and 4025 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:36,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:36,937 INFO L93 Difference]: Finished difference Result 5336 states and 7145 transitions. [2022-01-10 20:03:36,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:36,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 20:03:36,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:36,947 INFO L225 Difference]: With dead ends: 5336 [2022-01-10 20:03:36,947 INFO L226 Difference]: Without dead ends: 3276 [2022-01-10 20:03:36,951 INFO L932 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 [2022-01-10 20:03:36,951 INFO L933 BasicCegarLoop]: 2261 mSDtfsCounter, 90 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:36,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 4417 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2022-01-10 20:03:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3276. [2022-01-10 20:03:37,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3276 states, 3273 states have (on average 1.3651084631836237) internal successors, (4468), 3275 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3276 states to 3276 states and 4468 transitions. [2022-01-10 20:03:37,099 INFO L78 Accepts]: Start accepts. Automaton has 3276 states and 4468 transitions. Word has length 60 [2022-01-10 20:03:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:37,099 INFO L470 AbstractCegarLoop]: Abstraction has 3276 states and 4468 transitions. [2022-01-10 20:03:37,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 4468 transitions. [2022-01-10 20:03:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 20:03:37,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:37,101 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:37,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 20:03:37,101 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1083359195, now seen corresponding path program 1 times [2022-01-10 20:03:37,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:37,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47365640] [2022-01-10 20:03:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:37,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 20:03:37,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:37,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47365640] [2022-01-10 20:03:37,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47365640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:37,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:37,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:37,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115755639] [2022-01-10 20:03:37,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:37,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:37,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:37,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:37,133 INFO L87 Difference]: Start difference. First operand 3276 states and 4468 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:37,310 INFO L93 Difference]: Finished difference Result 5091 states and 6792 transitions. [2022-01-10 20:03:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:37,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-10 20:03:37,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:37,318 INFO L225 Difference]: With dead ends: 5091 [2022-01-10 20:03:37,319 INFO L226 Difference]: Without dead ends: 3276 [2022-01-10 20:03:37,322 INFO L932 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 [2022-01-10 20:03:37,322 INFO L933 BasicCegarLoop]: 2169 mSDtfsCounter, 2112 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:37,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2112 Valid, 2253 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2022-01-10 20:03:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3276. [2022-01-10 20:03:37,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3276 states, 3273 states have (on average 1.3528872593950505) internal successors, (4428), 3275 states have internal predecessors, (4428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3276 states to 3276 states and 4428 transitions. [2022-01-10 20:03:37,475 INFO L78 Accepts]: Start accepts. Automaton has 3276 states and 4428 transitions. Word has length 68 [2022-01-10 20:03:37,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:37,476 INFO L470 AbstractCegarLoop]: Abstraction has 3276 states and 4428 transitions. [2022-01-10 20:03:37,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 4428 transitions. [2022-01-10 20:03:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 20:03:37,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:37,477 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-10 20:03:37,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 20:03:37,478 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:37,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash 329098683, now seen corresponding path program 1 times [2022-01-10 20:03:37,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:37,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835597992] [2022-01-10 20:03:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:37,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 20:03:37,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:37,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835597992] [2022-01-10 20:03:37,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835597992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:37,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:37,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:37,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998118875] [2022-01-10 20:03:37,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:37,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:37,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:37,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:37,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:37,524 INFO L87 Difference]: Start difference. First operand 3276 states and 4428 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:37,685 INFO L93 Difference]: Finished difference Result 4855 states and 6415 transitions. [2022-01-10 20:03:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:37,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-01-10 20:03:37,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:37,691 INFO L225 Difference]: With dead ends: 4855 [2022-01-10 20:03:37,692 INFO L226 Difference]: Without dead ends: 3278 [2022-01-10 20:03:37,694 INFO L932 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 [2022-01-10 20:03:37,694 INFO L933 BasicCegarLoop]: 2254 mSDtfsCounter, 99 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:37,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 4404 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:37,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2022-01-10 20:03:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3276. [2022-01-10 20:03:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3276 states, 3273 states have (on average 1.3363886342804767) internal successors, (4374), 3275 states have internal predecessors, (4374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3276 states to 3276 states and 4374 transitions. [2022-01-10 20:03:37,871 INFO L78 Accepts]: Start accepts. Automaton has 3276 states and 4374 transitions. Word has length 69 [2022-01-10 20:03:37,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:37,871 INFO L470 AbstractCegarLoop]: Abstraction has 3276 states and 4374 transitions. [2022-01-10 20:03:37,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:37,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 4374 transitions. [2022-01-10 20:03:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 20:03:37,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:37,874 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:37,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 20:03:37,874 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:37,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:37,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1342926449, now seen corresponding path program 1 times [2022-01-10 20:03:37,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:37,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122425075] [2022-01-10 20:03:37,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:37,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 20:03:37,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:37,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122425075] [2022-01-10 20:03:37,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122425075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:37,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:37,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:37,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630329779] [2022-01-10 20:03:37,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:37,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:37,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:37,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:37,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:37,900 INFO L87 Difference]: Start difference. First operand 3276 states and 4374 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:38,041 INFO L93 Difference]: Finished difference Result 4837 states and 6395 transitions. [2022-01-10 20:03:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-01-10 20:03:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:38,048 INFO L225 Difference]: With dead ends: 4837 [2022-01-10 20:03:38,048 INFO L226 Difference]: Without dead ends: 3623 [2022-01-10 20:03:38,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:38,051 INFO L933 BasicCegarLoop]: 2166 mSDtfsCounter, 2143 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:38,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2143 Valid, 2254 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:38,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2022-01-10 20:03:38,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3581. [2022-01-10 20:03:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3581 states, 3578 states have (on average 1.335662381218558) internal successors, (4779), 3580 states have internal predecessors, (4779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 4779 transitions. [2022-01-10 20:03:38,211 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 4779 transitions. Word has length 100 [2022-01-10 20:03:38,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:38,211 INFO L470 AbstractCegarLoop]: Abstraction has 3581 states and 4779 transitions. [2022-01-10 20:03:38,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 4779 transitions. [2022-01-10 20:03:38,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 20:03:38,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:38,213 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-10 20:03:38,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 20:03:38,213 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:38,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1282857875, now seen corresponding path program 1 times [2022-01-10 20:03:38,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:38,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213992666] [2022-01-10 20:03:38,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:38,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:38,253 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:38,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:38,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213992666] [2022-01-10 20:03:38,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213992666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:38,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:38,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:38,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862916532] [2022-01-10 20:03:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:38,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:38,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:38,255 INFO L87 Difference]: Start difference. First operand 3581 states and 4779 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:38,361 INFO L93 Difference]: Finished difference Result 4581 states and 6037 transitions. [2022-01-10 20:03:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:38,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 20:03:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:38,365 INFO L225 Difference]: With dead ends: 4581 [2022-01-10 20:03:38,365 INFO L226 Difference]: Without dead ends: 2590 [2022-01-10 20:03:38,368 INFO L932 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 [2022-01-10 20:03:38,369 INFO L933 BasicCegarLoop]: 2192 mSDtfsCounter, 32 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4336 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:38,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 4336 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2022-01-10 20:03:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 2535. [2022-01-10 20:03:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2532 states have (on average 1.368088467614534) internal successors, (3464), 2534 states have internal predecessors, (3464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3464 transitions. [2022-01-10 20:03:38,465 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3464 transitions. Word has length 106 [2022-01-10 20:03:38,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:38,465 INFO L470 AbstractCegarLoop]: Abstraction has 2535 states and 3464 transitions. [2022-01-10 20:03:38,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3464 transitions. [2022-01-10 20:03:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 20:03:38,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:38,469 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-10 20:03:38,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 20:03:38,469 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:38,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:38,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1660313797, now seen corresponding path program 1 times [2022-01-10 20:03:38,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:38,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366274815] [2022-01-10 20:03:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:38,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 20:03:38,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:38,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366274815] [2022-01-10 20:03:38,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366274815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:38,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:38,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:38,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214184907] [2022-01-10 20:03:38,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:38,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:38,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:38,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:38,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:38,504 INFO L87 Difference]: Start difference. First operand 2535 states and 3464 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:38,628 INFO L93 Difference]: Finished difference Result 3465 states and 4634 transitions. [2022-01-10 20:03:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 20:03:38,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:38,633 INFO L225 Difference]: With dead ends: 3465 [2022-01-10 20:03:38,633 INFO L226 Difference]: Without dead ends: 2539 [2022-01-10 20:03:38,635 INFO L932 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 [2022-01-10 20:03:38,636 INFO L933 BasicCegarLoop]: 2152 mSDtfsCounter, 71 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4192 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:38,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 4192 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2022-01-10 20:03:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2539. [2022-01-10 20:03:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2536 states have (on average 1.36198738170347) internal successors, (3454), 2538 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3454 transitions. [2022-01-10 20:03:38,754 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3454 transitions. Word has length 110 [2022-01-10 20:03:38,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:38,754 INFO L470 AbstractCegarLoop]: Abstraction has 2539 states and 3454 transitions. [2022-01-10 20:03:38,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3454 transitions. [2022-01-10 20:03:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 20:03:38,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:38,756 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-10 20:03:38,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 20:03:38,757 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:38,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1419773668, now seen corresponding path program 1 times [2022-01-10 20:03:38,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:38,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491729677] [2022-01-10 20:03:38,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:38,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 20:03:38,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:38,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491729677] [2022-01-10 20:03:38,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491729677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:38,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:38,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:38,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309149056] [2022-01-10 20:03:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:38,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:38,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:38,803 INFO L87 Difference]: Start difference. First operand 2539 states and 3454 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:38,922 INFO L93 Difference]: Finished difference Result 3513 states and 4670 transitions. [2022-01-10 20:03:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:38,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 20:03:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:38,927 INFO L225 Difference]: With dead ends: 3513 [2022-01-10 20:03:38,927 INFO L226 Difference]: Without dead ends: 2583 [2022-01-10 20:03:38,929 INFO L932 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 [2022-01-10 20:03:38,929 INFO L933 BasicCegarLoop]: 2155 mSDtfsCounter, 2118 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:38,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2118 Valid, 2176 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2022-01-10 20:03:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2583. [2022-01-10 20:03:39,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2580 states have (on average 1.3503875968992247) internal successors, (3484), 2582 states have internal predecessors, (3484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3484 transitions. [2022-01-10 20:03:39,055 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3484 transitions. Word has length 110 [2022-01-10 20:03:39,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:39,055 INFO L470 AbstractCegarLoop]: Abstraction has 2583 states and 3484 transitions. [2022-01-10 20:03:39,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3484 transitions. [2022-01-10 20:03:39,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 20:03:39,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:39,057 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-10 20:03:39,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 20:03:39,057 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:39,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1545467868, now seen corresponding path program 1 times [2022-01-10 20:03:39,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:39,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877270717] [2022-01-10 20:03:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:39,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 20:03:39,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:39,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877270717] [2022-01-10 20:03:39,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877270717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:39,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:39,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:39,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210502180] [2022-01-10 20:03:39,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:39,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:39,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:39,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:39,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:39,104 INFO L87 Difference]: Start difference. First operand 2583 states and 3484 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:39,304 INFO L93 Difference]: Finished difference Result 3538 states and 4649 transitions. [2022-01-10 20:03:39,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:39,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 20:03:39,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:39,308 INFO L225 Difference]: With dead ends: 3538 [2022-01-10 20:03:39,308 INFO L226 Difference]: Without dead ends: 2564 [2022-01-10 20:03:39,309 INFO L932 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 [2022-01-10 20:03:39,309 INFO L933 BasicCegarLoop]: 2216 mSDtfsCounter, 69 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:39,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 4339 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2022-01-10 20:03:39,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2555. [2022-01-10 20:03:39,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2552 states have (on average 1.3409090909090908) internal successors, (3422), 2554 states have internal predecessors, (3422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3422 transitions. [2022-01-10 20:03:39,407 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3422 transitions. Word has length 110 [2022-01-10 20:03:39,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:39,407 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 3422 transitions. [2022-01-10 20:03:39,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3422 transitions. [2022-01-10 20:03:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 20:03:39,409 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:39,409 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-10 20:03:39,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 20:03:39,409 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash -555529717, now seen corresponding path program 1 times [2022-01-10 20:03:39,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:39,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089748186] [2022-01-10 20:03:39,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:39,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 20:03:39,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:39,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089748186] [2022-01-10 20:03:39,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089748186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:39,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:39,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:03:39,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662409280] [2022-01-10 20:03:39,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:39,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:03:39,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:39,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:03:39,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:03:39,452 INFO L87 Difference]: Start difference. First operand 2555 states and 3422 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:39,574 INFO L93 Difference]: Finished difference Result 3335 states and 4325 transitions. [2022-01-10 20:03:39,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 20:03:39,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-10 20:03:39,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:39,579 INFO L225 Difference]: With dead ends: 3335 [2022-01-10 20:03:39,579 INFO L226 Difference]: Without dead ends: 2195 [2022-01-10 20:03:39,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 20:03:39,581 INFO L933 BasicCegarLoop]: 2160 mSDtfsCounter, 129 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 8534 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:39,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 8534 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:39,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-01-10 20:03:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2037. [2022-01-10 20:03:39,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 2034 states have (on average 1.3810226155358898) internal successors, (2809), 2036 states have internal predecessors, (2809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2809 transitions. [2022-01-10 20:03:39,663 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2809 transitions. Word has length 111 [2022-01-10 20:03:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:39,663 INFO L470 AbstractCegarLoop]: Abstraction has 2037 states and 2809 transitions. [2022-01-10 20:03:39,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2809 transitions. [2022-01-10 20:03:39,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 20:03:39,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:39,665 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:39,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 20:03:39,665 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:39,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1329748962, now seen corresponding path program 1 times [2022-01-10 20:03:39,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:39,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695390142] [2022-01-10 20:03:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:39,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 20:03:39,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:39,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695390142] [2022-01-10 20:03:39,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695390142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:39,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:39,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:39,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624478292] [2022-01-10 20:03:39,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:39,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:39,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:39,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:39,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:39,714 INFO L87 Difference]: Start difference. First operand 2037 states and 2809 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:39,802 INFO L93 Difference]: Finished difference Result 2542 states and 3406 transitions. [2022-01-10 20:03:39,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:39,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 20:03:39,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:39,805 INFO L225 Difference]: With dead ends: 2542 [2022-01-10 20:03:39,806 INFO L226 Difference]: Without dead ends: 2043 [2022-01-10 20:03:39,806 INFO L932 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 [2022-01-10 20:03:39,807 INFO L933 BasicCegarLoop]: 2151 mSDtfsCounter, 61 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:39,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 4193 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2022-01-10 20:03:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 2043. [2022-01-10 20:03:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 2040 states have (on average 1.378921568627451) internal successors, (2813), 2042 states have internal predecessors, (2813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2813 transitions. [2022-01-10 20:03:39,897 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2813 transitions. Word has length 113 [2022-01-10 20:03:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:39,897 INFO L470 AbstractCegarLoop]: Abstraction has 2043 states and 2813 transitions. [2022-01-10 20:03:39,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:39,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2813 transitions. [2022-01-10 20:03:39,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 20:03:39,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:39,899 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:39,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 20:03:39,899 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:39,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:39,899 INFO L85 PathProgramCache]: Analyzing trace with hash 881052323, now seen corresponding path program 1 times [2022-01-10 20:03:39,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:39,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650236454] [2022-01-10 20:03:39,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:39,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 20:03:39,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:39,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650236454] [2022-01-10 20:03:39,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650236454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:39,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:39,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:39,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665939246] [2022-01-10 20:03:39,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:39,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:39,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:39,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:39,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:39,944 INFO L87 Difference]: Start difference. First operand 2043 states and 2813 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:40,042 INFO L93 Difference]: Finished difference Result 2519 states and 3373 transitions. [2022-01-10 20:03:40,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:40,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 20:03:40,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:40,046 INFO L225 Difference]: With dead ends: 2519 [2022-01-10 20:03:40,046 INFO L226 Difference]: Without dead ends: 2014 [2022-01-10 20:03:40,047 INFO L932 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 [2022-01-10 20:03:40,047 INFO L933 BasicCegarLoop]: 2152 mSDtfsCounter, 2103 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:40,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2103 Valid, 2170 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:40,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2022-01-10 20:03:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1962. [2022-01-10 20:03:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1959 states have (on average 1.3828483920367534) internal successors, (2709), 1961 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2709 transitions. [2022-01-10 20:03:40,126 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2709 transitions. Word has length 113 [2022-01-10 20:03:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:40,126 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2709 transitions. [2022-01-10 20:03:40,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2709 transitions. [2022-01-10 20:03:40,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 20:03:40,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:40,128 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-01-10 20:03:40,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 20:03:40,128 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1567924962, now seen corresponding path program 1 times [2022-01-10 20:03:40,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:40,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224251756] [2022-01-10 20:03:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:40,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 20:03:40,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:40,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224251756] [2022-01-10 20:03:40,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224251756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:40,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:40,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:40,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980340574] [2022-01-10 20:03:40,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:40,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:40,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:40,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:40,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:40,177 INFO L87 Difference]: Start difference. First operand 1962 states and 2709 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:40,270 INFO L93 Difference]: Finished difference Result 2450 states and 3269 transitions. [2022-01-10 20:03:40,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:40,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-01-10 20:03:40,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:40,274 INFO L225 Difference]: With dead ends: 2450 [2022-01-10 20:03:40,274 INFO L226 Difference]: Without dead ends: 1953 [2022-01-10 20:03:40,275 INFO L932 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 [2022-01-10 20:03:40,275 INFO L933 BasicCegarLoop]: 2181 mSDtfsCounter, 30 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4271 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:40,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 4271 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:40,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2022-01-10 20:03:40,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1948. [2022-01-10 20:03:40,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1945 states have (on average 1.3753213367609254) internal successors, (2675), 1947 states have internal predecessors, (2675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2675 transitions. [2022-01-10 20:03:40,349 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2675 transitions. Word has length 124 [2022-01-10 20:03:40,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:40,349 INFO L470 AbstractCegarLoop]: Abstraction has 1948 states and 2675 transitions. [2022-01-10 20:03:40,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2675 transitions. [2022-01-10 20:03:40,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 20:03:40,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:40,361 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:40,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 20:03:40,361 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash -650868609, now seen corresponding path program 1 times [2022-01-10 20:03:40,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:40,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319146716] [2022-01-10 20:03:40,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:40,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 20:03:40,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:40,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319146716] [2022-01-10 20:03:40,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319146716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:40,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:40,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:03:40,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574140915] [2022-01-10 20:03:40,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:40,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:03:40,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:40,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:03:40,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:03:40,418 INFO L87 Difference]: Start difference. First operand 1948 states and 2675 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:40,524 INFO L93 Difference]: Finished difference Result 2276 states and 3034 transitions. [2022-01-10 20:03:40,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:03:40,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-01-10 20:03:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:40,527 INFO L225 Difference]: With dead ends: 2276 [2022-01-10 20:03:40,527 INFO L226 Difference]: Without dead ends: 1371 [2022-01-10 20:03:40,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:03:40,530 INFO L933 BasicCegarLoop]: 2148 mSDtfsCounter, 305 mSDsluCounter, 6383 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 8531 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:40,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 8531 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-01-10 20:03:40,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1371. [2022-01-10 20:03:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1369 states have (on average 1.4886778670562455) internal successors, (2038), 1370 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2038 transitions. [2022-01-10 20:03:40,565 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2038 transitions. Word has length 124 [2022-01-10 20:03:40,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:40,566 INFO L470 AbstractCegarLoop]: Abstraction has 1371 states and 2038 transitions. [2022-01-10 20:03:40,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2038 transitions. [2022-01-10 20:03:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:40,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:40,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:40,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 20:03:40,567 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:40,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:40,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1608134806, now seen corresponding path program 1 times [2022-01-10 20:03:40,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:40,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332335336] [2022-01-10 20:03:40,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:40,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:40,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:40,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332335336] [2022-01-10 20:03:40,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332335336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:40,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:40,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:40,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036679780] [2022-01-10 20:03:40,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:40,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:40,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:40,598 INFO L87 Difference]: Start difference. First operand 1371 states and 2038 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:40,645 INFO L93 Difference]: Finished difference Result 2734 states and 4065 transitions. [2022-01-10 20:03:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:40,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:40,648 INFO L225 Difference]: With dead ends: 2734 [2022-01-10 20:03:40,648 INFO L226 Difference]: Without dead ends: 1371 [2022-01-10 20:03:40,650 INFO L932 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 [2022-01-10 20:03:40,650 INFO L933 BasicCegarLoop]: 2036 mSDtfsCounter, 2030 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:40,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2030 Valid, 2037 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-01-10 20:03:40,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1371. [2022-01-10 20:03:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1369 states have (on average 1.4879474068663259) internal successors, (2037), 1370 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2037 transitions. [2022-01-10 20:03:40,688 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2037 transitions. Word has length 143 [2022-01-10 20:03:40,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:40,688 INFO L470 AbstractCegarLoop]: Abstraction has 1371 states and 2037 transitions. [2022-01-10 20:03:40,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2037 transitions. [2022-01-10 20:03:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:40,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:40,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:40,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 20:03:40,689 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:40,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:40,689 INFO L85 PathProgramCache]: Analyzing trace with hash 330404491, now seen corresponding path program 1 times [2022-01-10 20:03:40,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:40,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055510324] [2022-01-10 20:03:40,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:40,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:40,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:40,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055510324] [2022-01-10 20:03:40,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055510324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:40,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:40,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:40,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209670669] [2022-01-10 20:03:40,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:40,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:40,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:40,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:40,725 INFO L87 Difference]: Start difference. First operand 1371 states and 2037 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:40,814 INFO L93 Difference]: Finished difference Result 3876 states and 5742 transitions. [2022-01-10 20:03:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:40,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:40,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:40,819 INFO L225 Difference]: With dead ends: 3876 [2022-01-10 20:03:40,819 INFO L226 Difference]: Without dead ends: 2523 [2022-01-10 20:03:40,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:40,822 INFO L933 BasicCegarLoop]: 2031 mSDtfsCounter, 1902 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:40,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 3834 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2022-01-10 20:03:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2519. [2022-01-10 20:03:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4811283273738578) internal successors, (3728), 2518 states have internal predecessors, (3728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3728 transitions. [2022-01-10 20:03:40,902 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3728 transitions. Word has length 143 [2022-01-10 20:03:40,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:40,902 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3728 transitions. [2022-01-10 20:03:40,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3728 transitions. [2022-01-10 20:03:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:40,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:40,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:40,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 20:03:40,903 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:40,904 INFO L85 PathProgramCache]: Analyzing trace with hash 445341099, now seen corresponding path program 1 times [2022-01-10 20:03:40,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:40,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541877742] [2022-01-10 20:03:40,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:40,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:40,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:40,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541877742] [2022-01-10 20:03:40,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541877742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:40,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:40,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:40,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417645839] [2022-01-10 20:03:40,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:40,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:40,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:40,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:40,961 INFO L87 Difference]: Start difference. First operand 2519 states and 3728 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:41,045 INFO L93 Difference]: Finished difference Result 5019 states and 7426 transitions. [2022-01-10 20:03:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:41,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:41,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:41,049 INFO L225 Difference]: With dead ends: 5019 [2022-01-10 20:03:41,050 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:41,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,053 INFO L933 BasicCegarLoop]: 2025 mSDtfsCounter, 2012 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:41,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2012 Valid, 2025 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:41,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:41,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4779499404052443) internal successors, (3720), 2518 states have internal predecessors, (3720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3720 transitions. [2022-01-10 20:03:41,133 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3720 transitions. Word has length 143 [2022-01-10 20:03:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:41,134 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3720 transitions. [2022-01-10 20:03:41,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3720 transitions. [2022-01-10 20:03:41,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:41,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:41,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:41,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 20:03:41,135 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:41,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:41,135 INFO L85 PathProgramCache]: Analyzing trace with hash -105140597, now seen corresponding path program 1 times [2022-01-10 20:03:41,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:41,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26667538] [2022-01-10 20:03:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:41,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:41,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:41,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26667538] [2022-01-10 20:03:41,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26667538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:41,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:41,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:41,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129147049] [2022-01-10 20:03:41,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:41,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:41,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,164 INFO L87 Difference]: Start difference. First operand 2519 states and 3720 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:41,248 INFO L93 Difference]: Finished difference Result 5018 states and 7409 transitions. [2022-01-10 20:03:41,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:41,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:41,253 INFO L225 Difference]: With dead ends: 5018 [2022-01-10 20:03:41,253 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:41,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,256 INFO L933 BasicCegarLoop]: 2020 mSDtfsCounter, 2006 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:41,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2006 Valid, 2020 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:41,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:41,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4747715534366308) internal successors, (3712), 2518 states have internal predecessors, (3712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3712 transitions. [2022-01-10 20:03:41,337 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3712 transitions. Word has length 143 [2022-01-10 20:03:41,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:41,337 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3712 transitions. [2022-01-10 20:03:41,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3712 transitions. [2022-01-10 20:03:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:41,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:41,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:41,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 20:03:41,341 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:41,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2093859243, now seen corresponding path program 1 times [2022-01-10 20:03:41,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:41,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846785923] [2022-01-10 20:03:41,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:41,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:41,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:41,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846785923] [2022-01-10 20:03:41,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846785923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:41,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:41,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:41,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153799639] [2022-01-10 20:03:41,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:41,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:41,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:41,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:41,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,376 INFO L87 Difference]: Start difference. First operand 2519 states and 3712 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:41,506 INFO L93 Difference]: Finished difference Result 5016 states and 7390 transitions. [2022-01-10 20:03:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:41,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:41,510 INFO L225 Difference]: With dead ends: 5016 [2022-01-10 20:03:41,510 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:41,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,514 INFO L933 BasicCegarLoop]: 2015 mSDtfsCounter, 1999 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:41,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1999 Valid, 2015 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:41,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:41,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4715931664680175) internal successors, (3704), 2518 states have internal predecessors, (3704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3704 transitions. [2022-01-10 20:03:41,625 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3704 transitions. Word has length 143 [2022-01-10 20:03:41,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:41,625 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3704 transitions. [2022-01-10 20:03:41,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3704 transitions. [2022-01-10 20:03:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:41,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:41,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:41,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 20:03:41,627 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:41,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:41,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1032461515, now seen corresponding path program 1 times [2022-01-10 20:03:41,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:41,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067973156] [2022-01-10 20:03:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:41,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:41,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:41,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:41,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067973156] [2022-01-10 20:03:41,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067973156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:41,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:41,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:41,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861102285] [2022-01-10 20:03:41,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:41,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:41,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:41,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:41,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,661 INFO L87 Difference]: Start difference. First operand 2519 states and 3704 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:41,750 INFO L93 Difference]: Finished difference Result 5015 states and 7373 transitions. [2022-01-10 20:03:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:41,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:41,754 INFO L225 Difference]: With dead ends: 5015 [2022-01-10 20:03:41,754 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:41,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,757 INFO L933 BasicCegarLoop]: 2010 mSDtfsCounter, 1993 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:41,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 2010 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:41,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.468414779499404) internal successors, (3696), 2518 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3696 transitions. [2022-01-10 20:03:41,841 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3696 transitions. Word has length 143 [2022-01-10 20:03:41,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:41,842 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3696 transitions. [2022-01-10 20:03:41,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3696 transitions. [2022-01-10 20:03:41,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:41,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:41,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:41,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 20:03:41,843 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:41,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1413864875, now seen corresponding path program 1 times [2022-01-10 20:03:41,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:41,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194585142] [2022-01-10 20:03:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:41,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:41,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:41,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194585142] [2022-01-10 20:03:41,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194585142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:41,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:41,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:41,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824249293] [2022-01-10 20:03:41,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:41,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:41,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:41,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:41,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,879 INFO L87 Difference]: Start difference. First operand 2519 states and 3696 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:41,988 INFO L93 Difference]: Finished difference Result 5014 states and 7356 transitions. [2022-01-10 20:03:41,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:41,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:41,993 INFO L225 Difference]: With dead ends: 5014 [2022-01-10 20:03:41,993 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:41,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:41,999 INFO L933 BasicCegarLoop]: 2005 mSDtfsCounter, 1987 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:42,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1987 Valid, 2005 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:42,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:42,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:42,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4652363925307905) internal successors, (3688), 2518 states have internal predecessors, (3688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3688 transitions. [2022-01-10 20:03:42,114 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3688 transitions. Word has length 143 [2022-01-10 20:03:42,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:42,114 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3688 transitions. [2022-01-10 20:03:42,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3688 transitions. [2022-01-10 20:03:42,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:42,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:42,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:42,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 20:03:42,115 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:42,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:42,116 INFO L85 PathProgramCache]: Analyzing trace with hash -929136437, now seen corresponding path program 1 times [2022-01-10 20:03:42,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:42,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15845084] [2022-01-10 20:03:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:42,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:42,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:42,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15845084] [2022-01-10 20:03:42,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15845084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:42,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:42,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:42,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545849717] [2022-01-10 20:03:42,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:42,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:42,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:42,145 INFO L87 Difference]: Start difference. First operand 2519 states and 3688 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:42,240 INFO L93 Difference]: Finished difference Result 5013 states and 7339 transitions. [2022-01-10 20:03:42,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:42,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:42,245 INFO L225 Difference]: With dead ends: 5013 [2022-01-10 20:03:42,245 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:42,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:42,248 INFO L933 BasicCegarLoop]: 2000 mSDtfsCounter, 1981 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:42,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1981 Valid, 2000 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:42,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:42,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:42,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4620580055621772) internal successors, (3680), 2518 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3680 transitions. [2022-01-10 20:03:42,340 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3680 transitions. Word has length 143 [2022-01-10 20:03:42,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:42,341 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3680 transitions. [2022-01-10 20:03:42,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3680 transitions. [2022-01-10 20:03:42,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:42,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:42,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:42,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 20:03:42,343 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:42,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1558906453, now seen corresponding path program 1 times [2022-01-10 20:03:42,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:42,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003670221] [2022-01-10 20:03:42,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:42,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:42,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:42,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003670221] [2022-01-10 20:03:42,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003670221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:42,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:42,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:42,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467715357] [2022-01-10 20:03:42,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:42,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:42,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:42,372 INFO L87 Difference]: Start difference. First operand 2519 states and 3680 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:42,472 INFO L93 Difference]: Finished difference Result 5012 states and 7322 transitions. [2022-01-10 20:03:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:42,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:42,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:42,476 INFO L225 Difference]: With dead ends: 5012 [2022-01-10 20:03:42,476 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:42,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:42,480 INFO L933 BasicCegarLoop]: 1995 mSDtfsCounter, 1975 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:42,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 1995 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:42,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:42,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4588796185935637) internal successors, (3672), 2518 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3672 transitions. [2022-01-10 20:03:42,595 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3672 transitions. Word has length 143 [2022-01-10 20:03:42,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:42,595 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3672 transitions. [2022-01-10 20:03:42,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3672 transitions. [2022-01-10 20:03:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:42,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:42,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:42,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 20:03:42,596 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:42,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:42,596 INFO L85 PathProgramCache]: Analyzing trace with hash 360441035, now seen corresponding path program 1 times [2022-01-10 20:03:42,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:42,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335864418] [2022-01-10 20:03:42,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:42,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:42,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:42,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:42,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335864418] [2022-01-10 20:03:42,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335864418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:42,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:42,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:42,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136234535] [2022-01-10 20:03:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:42,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:42,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:42,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:42,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:42,634 INFO L87 Difference]: Start difference. First operand 2519 states and 3672 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:42,753 INFO L93 Difference]: Finished difference Result 5011 states and 7305 transitions. [2022-01-10 20:03:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:42,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:42,759 INFO L225 Difference]: With dead ends: 5011 [2022-01-10 20:03:42,759 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:42,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:42,765 INFO L933 BasicCegarLoop]: 1990 mSDtfsCounter, 1969 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:42,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1969 Valid, 1990 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4557012316249502) internal successors, (3664), 2518 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3664 transitions. [2022-01-10 20:03:42,874 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3664 transitions. Word has length 143 [2022-01-10 20:03:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:42,875 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3664 transitions. [2022-01-10 20:03:42,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3664 transitions. [2022-01-10 20:03:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:42,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:42,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:42,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 20:03:42,878 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:42,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:42,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1392186795, now seen corresponding path program 1 times [2022-01-10 20:03:42,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:42,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567087445] [2022-01-10 20:03:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:42,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:42,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:42,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567087445] [2022-01-10 20:03:42,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567087445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:42,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:42,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:42,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188890904] [2022-01-10 20:03:42,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:42,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:42,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:42,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:42,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:42,908 INFO L87 Difference]: Start difference. First operand 2519 states and 3664 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:43,014 INFO L93 Difference]: Finished difference Result 5010 states and 7288 transitions. [2022-01-10 20:03:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:43,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:43,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:43,019 INFO L225 Difference]: With dead ends: 5010 [2022-01-10 20:03:43,019 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:43,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:43,023 INFO L933 BasicCegarLoop]: 1985 mSDtfsCounter, 1963 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:43,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1963 Valid, 1985 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:43,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:43,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:43,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.452522844656337) internal successors, (3656), 2518 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3656 transitions. [2022-01-10 20:03:43,143 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3656 transitions. Word has length 143 [2022-01-10 20:03:43,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:43,143 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3656 transitions. [2022-01-10 20:03:43,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3656 transitions. [2022-01-10 20:03:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:43,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:43,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:43,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 20:03:43,144 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:43,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:43,144 INFO L85 PathProgramCache]: Analyzing trace with hash 39995595, now seen corresponding path program 1 times [2022-01-10 20:03:43,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:43,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954520159] [2022-01-10 20:03:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:43,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:43,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:43,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954520159] [2022-01-10 20:03:43,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954520159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:43,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:43,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:43,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455785905] [2022-01-10 20:03:43,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:43,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:43,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:43,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:43,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:43,172 INFO L87 Difference]: Start difference. First operand 2519 states and 3656 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:43,302 INFO L93 Difference]: Finished difference Result 5009 states and 7271 transitions. [2022-01-10 20:03:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:43,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:43,306 INFO L225 Difference]: With dead ends: 5009 [2022-01-10 20:03:43,306 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:43,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:43,309 INFO L933 BasicCegarLoop]: 1954 mSDtfsCounter, 1832 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:43,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1832 Valid, 2062 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:43,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4398092967818832) internal successors, (3624), 2518 states have internal predecessors, (3624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3624 transitions. [2022-01-10 20:03:43,418 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3624 transitions. Word has length 143 [2022-01-10 20:03:43,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:43,418 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3624 transitions. [2022-01-10 20:03:43,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3624 transitions. [2022-01-10 20:03:43,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:43,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:43,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:43,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 20:03:43,419 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:43,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1847924182, now seen corresponding path program 1 times [2022-01-10 20:03:43,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:43,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750252215] [2022-01-10 20:03:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:43,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:43,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:43,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:43,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750252215] [2022-01-10 20:03:43,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750252215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:43,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:43,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:43,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882525708] [2022-01-10 20:03:43,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:43,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:43,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:43,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:43,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:43,452 INFO L87 Difference]: Start difference. First operand 2519 states and 3624 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:43,634 INFO L93 Difference]: Finished difference Result 5008 states and 7206 transitions. [2022-01-10 20:03:43,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:43,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:43,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:43,639 INFO L225 Difference]: With dead ends: 5008 [2022-01-10 20:03:43,639 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:43,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:43,642 INFO L933 BasicCegarLoop]: 1936 mSDtfsCounter, 1814 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:43,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1814 Valid, 2043 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:43,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:43,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4270957489074294) internal successors, (3592), 2518 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3592 transitions. [2022-01-10 20:03:43,786 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3592 transitions. Word has length 143 [2022-01-10 20:03:43,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:43,786 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3592 transitions. [2022-01-10 20:03:43,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3592 transitions. [2022-01-10 20:03:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:43,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:43,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:43,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 20:03:43,787 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:43,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1032902391, now seen corresponding path program 1 times [2022-01-10 20:03:43,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:43,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900347814] [2022-01-10 20:03:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:43,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:43,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:43,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900347814] [2022-01-10 20:03:43,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900347814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:43,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:43,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:43,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427384413] [2022-01-10 20:03:43,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:43,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:43,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:43,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:43,820 INFO L87 Difference]: Start difference. First operand 2519 states and 3592 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:43,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:43,979 INFO L93 Difference]: Finished difference Result 5007 states and 7141 transitions. [2022-01-10 20:03:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:43,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:43,982 INFO L225 Difference]: With dead ends: 5007 [2022-01-10 20:03:43,982 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:43,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:43,986 INFO L933 BasicCegarLoop]: 1918 mSDtfsCounter, 1796 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:43,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1796 Valid, 2024 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:44,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:44,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.4143822010329758) internal successors, (3560), 2518 states have internal predecessors, (3560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3560 transitions. [2022-01-10 20:03:44,094 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3560 transitions. Word has length 143 [2022-01-10 20:03:44,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:44,094 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3560 transitions. [2022-01-10 20:03:44,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3560 transitions. [2022-01-10 20:03:44,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:44,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:44,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:44,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 20:03:44,095 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:44,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:44,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1477048088, now seen corresponding path program 1 times [2022-01-10 20:03:44,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:44,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162143349] [2022-01-10 20:03:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:44,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:44,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:44,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162143349] [2022-01-10 20:03:44,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162143349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:44,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:44,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:44,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590948008] [2022-01-10 20:03:44,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:44,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:44,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:44,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:44,125 INFO L87 Difference]: Start difference. First operand 2519 states and 3560 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:44,262 INFO L93 Difference]: Finished difference Result 5005 states and 7074 transitions. [2022-01-10 20:03:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:44,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:44,266 INFO L225 Difference]: With dead ends: 5005 [2022-01-10 20:03:44,266 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:44,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:44,272 INFO L933 BasicCegarLoop]: 1900 mSDtfsCounter, 1777 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:44,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1777 Valid, 2005 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.401668653158522) internal successors, (3528), 2518 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3528 transitions. [2022-01-10 20:03:44,400 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3528 transitions. Word has length 143 [2022-01-10 20:03:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:44,401 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3528 transitions. [2022-01-10 20:03:44,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3528 transitions. [2022-01-10 20:03:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:44,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:44,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:44,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 20:03:44,402 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:44,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash 915334983, now seen corresponding path program 1 times [2022-01-10 20:03:44,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:44,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252611381] [2022-01-10 20:03:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:44,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:44,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:44,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252611381] [2022-01-10 20:03:44,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252611381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:44,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:44,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:44,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122042039] [2022-01-10 20:03:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:44,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:44,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:44,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:44,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:44,432 INFO L87 Difference]: Start difference. First operand 2519 states and 3528 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:44,578 INFO L93 Difference]: Finished difference Result 5004 states and 7009 transitions. [2022-01-10 20:03:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:44,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:44,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:44,581 INFO L225 Difference]: With dead ends: 5004 [2022-01-10 20:03:44,581 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:44,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:44,584 INFO L933 BasicCegarLoop]: 1882 mSDtfsCounter, 1759 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:44,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 1986 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:44,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:44,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.3889551052840683) internal successors, (3496), 2518 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3496 transitions. [2022-01-10 20:03:44,698 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3496 transitions. Word has length 143 [2022-01-10 20:03:44,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:44,698 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3496 transitions. [2022-01-10 20:03:44,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3496 transitions. [2022-01-10 20:03:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:44,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:44,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:44,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 20:03:44,699 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:44,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:44,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1329873702, now seen corresponding path program 1 times [2022-01-10 20:03:44,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:44,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668159336] [2022-01-10 20:03:44,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:44,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:44,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:44,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668159336] [2022-01-10 20:03:44,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668159336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:44,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:44,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:44,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073989944] [2022-01-10 20:03:44,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:44,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:44,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:44,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:44,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:44,748 INFO L87 Difference]: Start difference. First operand 2519 states and 3496 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:44,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:44,891 INFO L93 Difference]: Finished difference Result 5003 states and 6944 transitions. [2022-01-10 20:03:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:44,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:44,894 INFO L225 Difference]: With dead ends: 5003 [2022-01-10 20:03:44,894 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:44,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:44,897 INFO L933 BasicCegarLoop]: 1864 mSDtfsCounter, 1741 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:44,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1741 Valid, 1967 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:44,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.3762415574096145) internal successors, (3464), 2518 states have internal predecessors, (3464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3464 transitions. [2022-01-10 20:03:45,038 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3464 transitions. Word has length 143 [2022-01-10 20:03:45,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:45,038 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3464 transitions. [2022-01-10 20:03:45,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3464 transitions. [2022-01-10 20:03:45,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:45,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:45,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:45,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 20:03:45,039 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:45,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:45,039 INFO L85 PathProgramCache]: Analyzing trace with hash -938287099, now seen corresponding path program 1 times [2022-01-10 20:03:45,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:45,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155651395] [2022-01-10 20:03:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:45,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:45,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:45,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:45,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155651395] [2022-01-10 20:03:45,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155651395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:45,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:45,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:45,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796337758] [2022-01-10 20:03:45,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:45,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:45,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:45,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:45,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:45,071 INFO L87 Difference]: Start difference. First operand 2519 states and 3464 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:45,225 INFO L93 Difference]: Finished difference Result 5002 states and 6879 transitions. [2022-01-10 20:03:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:45,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:45,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:45,229 INFO L225 Difference]: With dead ends: 5002 [2022-01-10 20:03:45,229 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:45,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:45,231 INFO L933 BasicCegarLoop]: 1846 mSDtfsCounter, 1723 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:45,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1723 Valid, 1948 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:45,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:45,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.363528009535161) internal successors, (3432), 2518 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3432 transitions. [2022-01-10 20:03:45,354 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3432 transitions. Word has length 143 [2022-01-10 20:03:45,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:45,354 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3432 transitions. [2022-01-10 20:03:45,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3432 transitions. [2022-01-10 20:03:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:45,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:45,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:45,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 20:03:45,355 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:45,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash 560753252, now seen corresponding path program 1 times [2022-01-10 20:03:45,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:45,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251002311] [2022-01-10 20:03:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:45,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:45,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:45,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251002311] [2022-01-10 20:03:45,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251002311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:45,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:45,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:45,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590166491] [2022-01-10 20:03:45,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:45,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:45,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:45,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:45,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:45,402 INFO L87 Difference]: Start difference. First operand 2519 states and 3432 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:45,564 INFO L93 Difference]: Finished difference Result 5001 states and 6814 transitions. [2022-01-10 20:03:45,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:45,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:45,567 INFO L225 Difference]: With dead ends: 5001 [2022-01-10 20:03:45,567 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:45,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:45,569 INFO L933 BasicCegarLoop]: 1828 mSDtfsCounter, 1705 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:45,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1705 Valid, 1929 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:45,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.3508144616607072) internal successors, (3400), 2518 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3400 transitions. [2022-01-10 20:03:45,723 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3400 transitions. Word has length 143 [2022-01-10 20:03:45,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:45,723 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3400 transitions. [2022-01-10 20:03:45,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3400 transitions. [2022-01-10 20:03:45,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:45,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:45,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:45,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 20:03:45,724 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:45,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2085321277, now seen corresponding path program 1 times [2022-01-10 20:03:45,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:45,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212152230] [2022-01-10 20:03:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:45,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:45,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:45,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212152230] [2022-01-10 20:03:45,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212152230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:45,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:45,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:45,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265701798] [2022-01-10 20:03:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:45,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:45,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:45,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:45,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:45,752 INFO L87 Difference]: Start difference. First operand 2519 states and 3400 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:45,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:45,904 INFO L93 Difference]: Finished difference Result 5000 states and 6749 transitions. [2022-01-10 20:03:45,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:45,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:45,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:45,907 INFO L225 Difference]: With dead ends: 5000 [2022-01-10 20:03:45,907 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:45,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:45,910 INFO L933 BasicCegarLoop]: 1810 mSDtfsCounter, 1687 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:45,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1687 Valid, 1910 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:45,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.3381009137862534) internal successors, (3368), 2518 states have internal predecessors, (3368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3368 transitions. [2022-01-10 20:03:46,035 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3368 transitions. Word has length 143 [2022-01-10 20:03:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:46,035 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3368 transitions. [2022-01-10 20:03:46,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3368 transitions. [2022-01-10 20:03:46,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:46,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:46,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:46,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 20:03:46,036 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:46,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:46,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1259733342, now seen corresponding path program 1 times [2022-01-10 20:03:46,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:46,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910633192] [2022-01-10 20:03:46,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:46,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:46,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:46,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:46,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910633192] [2022-01-10 20:03:46,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910633192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:46,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:46,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:46,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992428553] [2022-01-10 20:03:46,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:46,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:46,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:46,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:46,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:46,066 INFO L87 Difference]: Start difference. First operand 2519 states and 3368 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:46,225 INFO L93 Difference]: Finished difference Result 4999 states and 6684 transitions. [2022-01-10 20:03:46,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:46,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:46,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:46,228 INFO L225 Difference]: With dead ends: 4999 [2022-01-10 20:03:46,228 INFO L226 Difference]: Without dead ends: 2519 [2022-01-10 20:03:46,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:46,230 INFO L933 BasicCegarLoop]: 1792 mSDtfsCounter, 1669 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:46,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1669 Valid, 1891 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-01-10 20:03:46,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-01-10 20:03:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 1.3253873659117998) internal successors, (3336), 2518 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3336 transitions. [2022-01-10 20:03:46,445 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3336 transitions. Word has length 143 [2022-01-10 20:03:46,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:46,446 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3336 transitions. [2022-01-10 20:03:46,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3336 transitions. [2022-01-10 20:03:46,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:46,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:46,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:46,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 20:03:46,447 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:46,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1911596927, now seen corresponding path program 1 times [2022-01-10 20:03:46,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:46,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254498146] [2022-01-10 20:03:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:46,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:46,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:46,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254498146] [2022-01-10 20:03:46,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254498146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:46,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:46,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:03:46,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167952257] [2022-01-10 20:03:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:46,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:03:46,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:46,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:03:46,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:03:46,498 INFO L87 Difference]: Start difference. First operand 2519 states and 3336 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:46,826 INFO L93 Difference]: Finished difference Result 5826 states and 7786 transitions. [2022-01-10 20:03:46,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:03:46,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:46,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:46,831 INFO L225 Difference]: With dead ends: 5826 [2022-01-10 20:03:46,831 INFO L226 Difference]: Without dead ends: 3353 [2022-01-10 20:03:46,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:03:46,834 INFO L933 BasicCegarLoop]: 1944 mSDtfsCounter, 5167 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5167 SdHoareTripleChecker+Valid, 3664 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:46,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5167 Valid, 3664 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:03:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2022-01-10 20:03:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 2525. [2022-01-10 20:03:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 2523 states have (on average 1.3151010701545778) internal successors, (3318), 2524 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3318 transitions. [2022-01-10 20:03:46,993 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3318 transitions. Word has length 143 [2022-01-10 20:03:46,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:46,993 INFO L470 AbstractCegarLoop]: Abstraction has 2525 states and 3318 transitions. [2022-01-10 20:03:46,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3318 transitions. [2022-01-10 20:03:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:46,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:46,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:46,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 20:03:46,994 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:46,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:46,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1396076478, now seen corresponding path program 1 times [2022-01-10 20:03:46,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:46,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124875734] [2022-01-10 20:03:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:46,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:47,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:47,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124875734] [2022-01-10 20:03:47,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124875734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:47,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:47,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:03:47,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020579446] [2022-01-10 20:03:47,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:47,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:03:47,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:03:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:03:47,028 INFO L87 Difference]: Start difference. First operand 2525 states and 3318 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:47,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:47,362 INFO L93 Difference]: Finished difference Result 6110 states and 8081 transitions. [2022-01-10 20:03:47,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:03:47,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:47,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:47,366 INFO L225 Difference]: With dead ends: 6110 [2022-01-10 20:03:47,366 INFO L226 Difference]: Without dead ends: 3645 [2022-01-10 20:03:47,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:03:47,368 INFO L933 BasicCegarLoop]: 1895 mSDtfsCounter, 4853 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 4238 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:47,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4853 Valid, 4238 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:03:47,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3645 states. [2022-01-10 20:03:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 2531. [2022-01-10 20:03:47,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2529 states have (on average 1.3048635824436536) internal successors, (3300), 2530 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:47,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3300 transitions. [2022-01-10 20:03:47,540 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3300 transitions. Word has length 143 [2022-01-10 20:03:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:47,541 INFO L470 AbstractCegarLoop]: Abstraction has 2531 states and 3300 transitions. [2022-01-10 20:03:47,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:47,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3300 transitions. [2022-01-10 20:03:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:47,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:47,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:47,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-10 20:03:47,542 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:47,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:47,542 INFO L85 PathProgramCache]: Analyzing trace with hash 458269059, now seen corresponding path program 1 times [2022-01-10 20:03:47,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:47,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282693527] [2022-01-10 20:03:47,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:47,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:47,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:47,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282693527] [2022-01-10 20:03:47,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282693527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:47,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:47,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:47,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676633329] [2022-01-10 20:03:47,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:47,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:47,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:47,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:47,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:47,570 INFO L87 Difference]: Start difference. First operand 2531 states and 3300 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:47,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:47,917 INFO L93 Difference]: Finished difference Result 7205 states and 9390 transitions. [2022-01-10 20:03:47,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:47,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:47,923 INFO L225 Difference]: With dead ends: 7205 [2022-01-10 20:03:47,923 INFO L226 Difference]: Without dead ends: 4736 [2022-01-10 20:03:47,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:47,926 INFO L933 BasicCegarLoop]: 1767 mSDtfsCounter, 1581 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:47,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1581 Valid, 3345 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:47,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4736 states. [2022-01-10 20:03:48,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4736 to 4728. [2022-01-10 20:03:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4728 states, 4726 states have (on average 1.2985611510791366) internal successors, (6137), 4727 states have internal predecessors, (6137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4728 states to 4728 states and 6137 transitions. [2022-01-10 20:03:48,248 INFO L78 Accepts]: Start accepts. Automaton has 4728 states and 6137 transitions. Word has length 143 [2022-01-10 20:03:48,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:48,248 INFO L470 AbstractCegarLoop]: Abstraction has 4728 states and 6137 transitions. [2022-01-10 20:03:48,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:48,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4728 states and 6137 transitions. [2022-01-10 20:03:48,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:48,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:48,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:48,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-10 20:03:48,249 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:48,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:48,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1664863170, now seen corresponding path program 1 times [2022-01-10 20:03:48,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:48,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286573330] [2022-01-10 20:03:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:48,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:48,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:48,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:48,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286573330] [2022-01-10 20:03:48,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286573330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:48,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:48,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:03:48,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396679240] [2022-01-10 20:03:48,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:48,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:03:48,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:48,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:03:48,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:03:48,302 INFO L87 Difference]: Start difference. First operand 4728 states and 6137 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:49,090 INFO L93 Difference]: Finished difference Result 13410 states and 17444 transitions. [2022-01-10 20:03:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:03:49,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:49,101 INFO L225 Difference]: With dead ends: 13410 [2022-01-10 20:03:49,101 INFO L226 Difference]: Without dead ends: 8748 [2022-01-10 20:03:49,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:03:49,107 INFO L933 BasicCegarLoop]: 1873 mSDtfsCounter, 5540 mSDsluCounter, 6931 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5540 SdHoareTripleChecker+Valid, 8804 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:49,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5540 Valid, 8804 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:03:49,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8748 states. [2022-01-10 20:03:49,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 4803. [2022-01-10 20:03:49,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4801 states have (on average 1.2888981462195377) internal successors, (6188), 4802 states have internal predecessors, (6188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:49,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 6188 transitions. [2022-01-10 20:03:49,501 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 6188 transitions. Word has length 143 [2022-01-10 20:03:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:49,501 INFO L470 AbstractCegarLoop]: Abstraction has 4803 states and 6188 transitions. [2022-01-10 20:03:49,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 6188 transitions. [2022-01-10 20:03:49,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:49,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:49,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:49,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-10 20:03:49,502 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:49,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:49,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1135944131, now seen corresponding path program 1 times [2022-01-10 20:03:49,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:49,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080801423] [2022-01-10 20:03:49,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:49,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:49,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:49,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080801423] [2022-01-10 20:03:49,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080801423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:49,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:49,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:49,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046069891] [2022-01-10 20:03:49,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:49,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:49,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:49,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:49,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:49,546 INFO L87 Difference]: Start difference. First operand 4803 states and 6188 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:49,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:49,961 INFO L93 Difference]: Finished difference Result 9585 states and 12344 transitions. [2022-01-10 20:03:49,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:49,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:49,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:49,967 INFO L225 Difference]: With dead ends: 9585 [2022-01-10 20:03:49,967 INFO L226 Difference]: Without dead ends: 4803 [2022-01-10 20:03:49,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:49,971 INFO L933 BasicCegarLoop]: 1770 mSDtfsCounter, 1666 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:49,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 1770 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:49,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2022-01-10 20:03:50,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 4803. [2022-01-10 20:03:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4801 states have (on average 1.2859820870651948) internal successors, (6174), 4802 states have internal predecessors, (6174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 6174 transitions. [2022-01-10 20:03:50,418 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 6174 transitions. Word has length 143 [2022-01-10 20:03:50,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:50,418 INFO L470 AbstractCegarLoop]: Abstraction has 4803 states and 6174 transitions. [2022-01-10 20:03:50,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:50,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 6174 transitions. [2022-01-10 20:03:50,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:50,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:50,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:50,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-10 20:03:50,419 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:50,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2133531166, now seen corresponding path program 1 times [2022-01-10 20:03:50,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:50,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715389797] [2022-01-10 20:03:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:50,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:50,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:50,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:50,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715389797] [2022-01-10 20:03:50,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715389797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:50,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:50,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:50,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583821907] [2022-01-10 20:03:50,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:50,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:50,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:50,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:50,460 INFO L87 Difference]: Start difference. First operand 4803 states and 6174 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:50,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:50,931 INFO L93 Difference]: Finished difference Result 9505 states and 12213 transitions. [2022-01-10 20:03:50,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:50,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:50,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:50,937 INFO L225 Difference]: With dead ends: 9505 [2022-01-10 20:03:50,937 INFO L226 Difference]: Without dead ends: 4734 [2022-01-10 20:03:50,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:50,948 INFO L933 BasicCegarLoop]: 1729 mSDtfsCounter, 1526 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:50,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 1825 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2022-01-10 20:03:51,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 4734. [2022-01-10 20:03:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4734 states, 4732 states have (on average 1.2774725274725274) internal successors, (6045), 4733 states have internal predecessors, (6045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4734 states to 4734 states and 6045 transitions. [2022-01-10 20:03:51,354 INFO L78 Accepts]: Start accepts. Automaton has 4734 states and 6045 transitions. Word has length 143 [2022-01-10 20:03:51,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:51,355 INFO L470 AbstractCegarLoop]: Abstraction has 4734 states and 6045 transitions. [2022-01-10 20:03:51,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 4734 states and 6045 transitions. [2022-01-10 20:03:51,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:03:51,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:51,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:51,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-10 20:03:51,356 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:51,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:51,356 INFO L85 PathProgramCache]: Analyzing trace with hash -888766685, now seen corresponding path program 1 times [2022-01-10 20:03:51,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:51,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551294457] [2022-01-10 20:03:51,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:51,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:51,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:51,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551294457] [2022-01-10 20:03:51,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551294457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:51,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:51,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:03:51,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705322873] [2022-01-10 20:03:51,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:51,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:51,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:51,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:51,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:51,419 INFO L87 Difference]: Start difference. First operand 4734 states and 6045 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:52,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:52,230 INFO L93 Difference]: Finished difference Result 13925 states and 17785 transitions. [2022-01-10 20:03:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:52,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:03:52,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:52,241 INFO L225 Difference]: With dead ends: 13925 [2022-01-10 20:03:52,241 INFO L226 Difference]: Without dead ends: 9232 [2022-01-10 20:03:52,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:52,247 INFO L933 BasicCegarLoop]: 1729 mSDtfsCounter, 1558 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:52,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1558 Valid, 3277 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:03:52,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9232 states. [2022-01-10 20:03:52,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9232 to 8930. [2022-01-10 20:03:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8928 states have (on average 1.2727374551971327) internal successors, (11363), 8929 states have internal predecessors, (11363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:53,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 11363 transitions. [2022-01-10 20:03:53,002 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 11363 transitions. Word has length 143 [2022-01-10 20:03:53,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:53,002 INFO L470 AbstractCegarLoop]: Abstraction has 8930 states and 11363 transitions. [2022-01-10 20:03:53,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 11363 transitions. [2022-01-10 20:03:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 20:03:53,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:53,006 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:53,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-10 20:03:53,006 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:53,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:53,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1224008657, now seen corresponding path program 1 times [2022-01-10 20:03:53,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:53,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073396828] [2022-01-10 20:03:53,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:53,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:53,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:53,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073396828] [2022-01-10 20:03:53,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073396828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:53,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:53,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:53,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831044553] [2022-01-10 20:03:53,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:53,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:53,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:53,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:53,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:53,053 INFO L87 Difference]: Start difference. First operand 8930 states and 11363 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:54,613 INFO L93 Difference]: Finished difference Result 26436 states and 33681 transitions. [2022-01-10 20:03:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:54,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-01-10 20:03:54,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:54,636 INFO L225 Difference]: With dead ends: 26436 [2022-01-10 20:03:54,636 INFO L226 Difference]: Without dead ends: 17553 [2022-01-10 20:03:54,646 INFO L932 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 [2022-01-10 20:03:54,647 INFO L933 BasicCegarLoop]: 1726 mSDtfsCounter, 1599 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:54,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1599 Valid, 3274 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:03:54,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17553 states. [2022-01-10 20:03:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17553 to 16961. [2022-01-10 20:03:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16961 states, 16959 states have (on average 1.270416887788195) internal successors, (21545), 16960 states have internal predecessors, (21545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:56,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16961 states to 16961 states and 21545 transitions. [2022-01-10 20:03:56,317 INFO L78 Accepts]: Start accepts. Automaton has 16961 states and 21545 transitions. Word has length 232 [2022-01-10 20:03:56,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:03:56,318 INFO L470 AbstractCegarLoop]: Abstraction has 16961 states and 21545 transitions. [2022-01-10 20:03:56,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:56,318 INFO L276 IsEmpty]: Start isEmpty. Operand 16961 states and 21545 transitions. [2022-01-10 20:03:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 20:03:56,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:03:56,325 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:03:56,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-10 20:03:56,325 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:03:56,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:03:56,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1308765712, now seen corresponding path program 1 times [2022-01-10 20:03:56,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:03:56,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473931856] [2022-01-10 20:03:56,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:03:56,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:03:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:03:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:03:56,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:03:56,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473931856] [2022-01-10 20:03:56,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473931856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:03:56,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:03:56,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:03:56,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844369505] [2022-01-10 20:03:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:03:56,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:03:56,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:03:56,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:03:56,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:03:56,371 INFO L87 Difference]: Start difference. First operand 16961 states and 21545 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:03:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:03:59,489 INFO L93 Difference]: Finished difference Result 50143 states and 63375 transitions. [2022-01-10 20:03:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:03:59,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-01-10 20:03:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:03:59,529 INFO L225 Difference]: With dead ends: 50143 [2022-01-10 20:03:59,529 INFO L226 Difference]: Without dead ends: 33319 [2022-01-10 20:03:59,545 INFO L932 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 [2022-01-10 20:03:59,545 INFO L933 BasicCegarLoop]: 2026 mSDtfsCounter, 1587 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:03:59,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1587 Valid, 3734 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:03:59,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33319 states. [2022-01-10 20:04:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33319 to 32759. [2022-01-10 20:04:02,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32759 states, 32757 states have (on average 1.2586927984858198) internal successors, (41231), 32758 states have internal predecessors, (41231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32759 states to 32759 states and 41231 transitions. [2022-01-10 20:04:02,660 INFO L78 Accepts]: Start accepts. Automaton has 32759 states and 41231 transitions. Word has length 232 [2022-01-10 20:04:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:02,660 INFO L470 AbstractCegarLoop]: Abstraction has 32759 states and 41231 transitions. [2022-01-10 20:04:02,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:02,660 INFO L276 IsEmpty]: Start isEmpty. Operand 32759 states and 41231 transitions. [2022-01-10 20:04:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 20:04:02,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:02,673 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:02,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-10 20:04:02,674 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:02,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash 508985005, now seen corresponding path program 1 times [2022-01-10 20:04:02,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:02,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416490102] [2022-01-10 20:04:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:02,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:04:02,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:02,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416490102] [2022-01-10 20:04:02,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416490102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:02,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:02,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:02,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41139729] [2022-01-10 20:04:02,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:02,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:02,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:02,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:02,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:02,707 INFO L87 Difference]: Start difference. First operand 32759 states and 41231 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:05,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:05,857 INFO L93 Difference]: Finished difference Result 65337 states and 82246 transitions. [2022-01-10 20:04:05,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:05,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2022-01-10 20:04:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:05,904 INFO L225 Difference]: With dead ends: 65337 [2022-01-10 20:04:05,905 INFO L226 Difference]: Without dead ends: 32629 [2022-01-10 20:04:05,930 INFO L932 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 [2022-01-10 20:04:05,930 INFO L933 BasicCegarLoop]: 1740 mSDtfsCounter, 1735 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:05,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1735 Valid, 1741 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32629 states. [2022-01-10 20:04:09,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32629 to 32629. [2022-01-10 20:04:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32629 states, 32627 states have (on average 1.258957305299292) internal successors, (41076), 32628 states have internal predecessors, (41076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32629 states to 32629 states and 41076 transitions. [2022-01-10 20:04:09,165 INFO L78 Accepts]: Start accepts. Automaton has 32629 states and 41076 transitions. Word has length 232 [2022-01-10 20:04:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:09,165 INFO L470 AbstractCegarLoop]: Abstraction has 32629 states and 41076 transitions. [2022-01-10 20:04:09,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:09,165 INFO L276 IsEmpty]: Start isEmpty. Operand 32629 states and 41076 transitions. [2022-01-10 20:04:09,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-01-10 20:04:09,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:09,177 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:09,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-10 20:04:09,177 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:09,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:09,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1532610619, now seen corresponding path program 1 times [2022-01-10 20:04:09,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:09,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538645965] [2022-01-10 20:04:09,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:09,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:09,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:09,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538645965] [2022-01-10 20:04:09,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538645965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:09,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:09,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:09,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912369048] [2022-01-10 20:04:09,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:09,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:09,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:09,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:09,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:09,229 INFO L87 Difference]: Start difference. First operand 32629 states and 41076 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:15,059 INFO L93 Difference]: Finished difference Result 94509 states and 118728 transitions. [2022-01-10 20:04:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:15,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2022-01-10 20:04:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:15,168 INFO L225 Difference]: With dead ends: 94509 [2022-01-10 20:04:15,168 INFO L226 Difference]: Without dead ends: 62017 [2022-01-10 20:04:15,197 INFO L932 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 [2022-01-10 20:04:15,197 INFO L933 BasicCegarLoop]: 1737 mSDtfsCounter, 1374 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:15,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1374 Valid, 3304 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62017 states. [2022-01-10 20:04:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62017 to 62013. [2022-01-10 20:04:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62013 states, 62011 states have (on average 1.2535195368563643) internal successors, (77732), 62012 states have internal predecessors, (77732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:21,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62013 states to 62013 states and 77732 transitions. [2022-01-10 20:04:21,172 INFO L78 Accepts]: Start accepts. Automaton has 62013 states and 77732 transitions. Word has length 233 [2022-01-10 20:04:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:21,173 INFO L470 AbstractCegarLoop]: Abstraction has 62013 states and 77732 transitions. [2022-01-10 20:04:21,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:21,173 INFO L276 IsEmpty]: Start isEmpty. Operand 62013 states and 77732 transitions. [2022-01-10 20:04:21,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-01-10 20:04:21,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:21,194 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:21,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-10 20:04:21,194 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:21,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:21,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1761660899, now seen corresponding path program 1 times [2022-01-10 20:04:21,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:21,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363119622] [2022-01-10 20:04:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:21,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:21,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:21,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363119622] [2022-01-10 20:04:21,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363119622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:21,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:21,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:21,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342563535] [2022-01-10 20:04:21,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:21,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:21,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:21,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:21,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:21,242 INFO L87 Difference]: Start difference. First operand 62013 states and 77732 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:32,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:32,525 INFO L93 Difference]: Finished difference Result 182805 states and 228863 transitions. [2022-01-10 20:04:32,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:32,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2022-01-10 20:04:32,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:32,719 INFO L225 Difference]: With dead ends: 182805 [2022-01-10 20:04:32,719 INFO L226 Difference]: Without dead ends: 120929 [2022-01-10 20:04:32,767 INFO L932 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 [2022-01-10 20:04:32,767 INFO L933 BasicCegarLoop]: 2663 mSDtfsCounter, 1376 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 4381 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:32,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 4381 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:32,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120929 states.