/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_BITWISE.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:40:53,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:40:53,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:40:53,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:40:53,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:40:53,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:40:53,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:40:53,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:40:53,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:40:53,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:40:53,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:40:53,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:40:53,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:40:53,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:40:53,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:40:53,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:40:53,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:40:53,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:40:53,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:40:53,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:40:53,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:40:53,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:40:53,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:40:53,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:40:53,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 12:40:53,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:40:53,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:40:53,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:40:53,154 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:40:53,171 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:40:53,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:40:53,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:40:53,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:40:53,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:40:53,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:40:53,173 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:40:53,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:40:53,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:40:53,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:40:53,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:40:53,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:40:53,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:40:53,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:40:53,174 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:40:53,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:40:53,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:40:53,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:40:53,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:40:53,176 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:40:53,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:40:53,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:40:53,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:40:53,177 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:40:53,178 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:40:53,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:40:53,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:40:53,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:40:53,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:40:53,409 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:40:53,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-01-10 12:40:53,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f174540/d62a5606823d4f50a4bdb041fc65db81/FLAG55e0eb3a4 [2022-01-10 12:40:53,820 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:40:53,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-01-10 12:40:53,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f174540/d62a5606823d4f50a4bdb041fc65db81/FLAG55e0eb3a4 [2022-01-10 12:40:53,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f174540/d62a5606823d4f50a4bdb041fc65db81 [2022-01-10 12:40:53,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:40:53,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:40:53,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:40:53,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:40:53,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:40:53,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:40:53" (1/1) ... [2022-01-10 12:40:53,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a90cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:53, skipping insertion in model container [2022-01-10 12:40:53,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:40:53" (1/1) ... [2022-01-10 12:40:53,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:40:53,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:40:54,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-01-10 12:40:54,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:40:54,125 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:40:54,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-01-10 12:40:54,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:40:54,201 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:40:54,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54 WrapperNode [2022-01-10 12:40:54,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:40:54,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:40:54,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:40:54,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:40:54,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,282 INFO L137 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 41, calls inlined = 84, statements flattened = 1572 [2022-01-10 12:40:54,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:40:54,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:40:54,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:40:54,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:40:54,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:40:54,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:40:54,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:40:54,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:40:54,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (1/1) ... [2022-01-10 12:40:54,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:40:54,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:40:54,387 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 12:40:54,388 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 12:40:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:40:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:40:54,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:40:54,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:40:54,554 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:40:54,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:40:55,302 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:40:55,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:40:55,310 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-10 12:40:55,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:40:55 BoogieIcfgContainer [2022-01-10 12:40:55,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:40:55,312 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:40:55,312 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:40:55,313 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:40:55,315 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:40:55" (1/1) ... [2022-01-10 12:40:55,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:40:55 BasicIcfg [2022-01-10 12:40:55,596 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:40:55,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:40:55,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:40:55,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:40:55,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:40:53" (1/4) ... [2022-01-10 12:40:55,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e85ffb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:40:55, skipping insertion in model container [2022-01-10 12:40:55,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:40:54" (2/4) ... [2022-01-10 12:40:55,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e85ffb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:40:55, skipping insertion in model container [2022-01-10 12:40:55,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:40:55" (3/4) ... [2022-01-10 12:40:55,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e85ffb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:40:55, skipping insertion in model container [2022-01-10 12:40:55,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:40:55" (4/4) ... [2022-01-10 12:40:55,601 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.cTransformedIcfg [2022-01-10 12:40:55,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:40:55,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-01-10 12:40:55,634 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:40:55,640 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 12:40:55,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-01-10 12:40:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 527 states, 489 states have (on average 1.787321063394683) internal successors, (874), 526 states have internal predecessors, (874), 0 states have call successors, (0), 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 12:40:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 12:40:55,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:55,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:55,666 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:55,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:55,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1849518782, now seen corresponding path program 1 times [2022-01-10 12:40:55,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:55,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742617188] [2022-01-10 12:40:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:55,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:55,912 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 12:40:55,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:55,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742617188] [2022-01-10 12:40:55,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742617188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:55,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:55,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:55,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282484792] [2022-01-10 12:40:55,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:55,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:55,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:55,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:55,942 INFO L87 Difference]: Start difference. First operand has 527 states, 489 states have (on average 1.787321063394683) internal successors, (874), 526 states have internal predecessors, (874), 0 states have call successors, (0), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:40:56,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:56,096 INFO L93 Difference]: Finished difference Result 1271 states and 2084 transitions. [2022-01-10 12:40:56,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:56,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-01-10 12:40:56,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:56,110 INFO L225 Difference]: With dead ends: 1271 [2022-01-10 12:40:56,110 INFO L226 Difference]: Without dead ends: 738 [2022-01-10 12:40:56,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:56,116 INFO L933 BasicCegarLoop]: 951 mSDtfsCounter, 486 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:56,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 1489 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:40:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-01-10 12:40:56,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 463. [2022-01-10 12:40:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 432 states have (on average 1.662037037037037) internal successors, (718), 462 states have internal predecessors, (718), 0 states have call successors, (0), 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 12:40:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 718 transitions. [2022-01-10 12:40:56,156 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 718 transitions. Word has length 9 [2022-01-10 12:40:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:56,157 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 718 transitions. [2022-01-10 12:40:56,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:40:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 718 transitions. [2022-01-10 12:40:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 12:40:56,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:56,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:56,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:40:56,158 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1876350686, now seen corresponding path program 1 times [2022-01-10 12:40:56,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:56,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653787899] [2022-01-10 12:40:56,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:56,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:56,199 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 12:40:56,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:56,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653787899] [2022-01-10 12:40:56,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653787899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:56,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:56,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:56,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226982656] [2022-01-10 12:40:56,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:56,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:56,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:56,201 INFO L87 Difference]: Start difference. First operand 463 states and 718 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 12:40:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:56,244 INFO L93 Difference]: Finished difference Result 1149 states and 1764 transitions. [2022-01-10 12:40:56,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:56,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-01-10 12:40:56,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:56,247 INFO L225 Difference]: With dead ends: 1149 [2022-01-10 12:40:56,247 INFO L226 Difference]: Without dead ends: 688 [2022-01-10 12:40:56,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:56,249 INFO L933 BasicCegarLoop]: 668 mSDtfsCounter, 429 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:56,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1249 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:56,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-01-10 12:40:56,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 430. [2022-01-10 12:40:56,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 402 states have (on average 1.6417910447761195) internal successors, (660), 429 states have internal predecessors, (660), 0 states have call successors, (0), 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 12:40:56,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 660 transitions. [2022-01-10 12:40:56,260 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 660 transitions. Word has length 10 [2022-01-10 12:40:56,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:56,261 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 660 transitions. [2022-01-10 12:40:56,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 12:40:56,261 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 660 transitions. [2022-01-10 12:40:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 12:40:56,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:56,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:56,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:40:56,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:56,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1826130082, now seen corresponding path program 1 times [2022-01-10 12:40:56,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:56,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703928296] [2022-01-10 12:40:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:56,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:56,348 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 12:40:56,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:56,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703928296] [2022-01-10 12:40:56,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703928296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:56,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:56,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:56,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044491425] [2022-01-10 12:40:56,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:56,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:56,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:56,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:56,350 INFO L87 Difference]: Start difference. First operand 430 states and 660 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 12:40:56,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:56,482 INFO L93 Difference]: Finished difference Result 1293 states and 1949 transitions. [2022-01-10 12:40:56,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:40:56,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-01-10 12:40:56,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:56,487 INFO L225 Difference]: With dead ends: 1293 [2022-01-10 12:40:56,487 INFO L226 Difference]: Without dead ends: 876 [2022-01-10 12:40:56,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:56,493 INFO L933 BasicCegarLoop]: 1117 mSDtfsCounter, 824 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:56,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 2161 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:40:56,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-01-10 12:40:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 385. [2022-01-10 12:40:56,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 362 states have (on average 1.6022099447513811) internal successors, (580), 384 states have internal predecessors, (580), 0 states have call successors, (0), 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 12:40:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 580 transitions. [2022-01-10 12:40:56,506 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 580 transitions. Word has length 14 [2022-01-10 12:40:56,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:56,507 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 580 transitions. [2022-01-10 12:40:56,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 12:40:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 580 transitions. [2022-01-10 12:40:56,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 12:40:56,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:56,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:56,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:40:56,511 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:56,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1856701769, now seen corresponding path program 1 times [2022-01-10 12:40:56,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:56,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846413287] [2022-01-10 12:40:56,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:56,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:56,601 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 12:40:56,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:56,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846413287] [2022-01-10 12:40:56,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846413287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:56,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:56,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:56,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075407921] [2022-01-10 12:40:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:56,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:56,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:56,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:56,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:56,603 INFO L87 Difference]: Start difference. First operand 385 states and 580 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 12:40:56,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:56,657 INFO L93 Difference]: Finished difference Result 1205 states and 1798 transitions. [2022-01-10 12:40:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:40:56,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-01-10 12:40:56,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:56,660 INFO L225 Difference]: With dead ends: 1205 [2022-01-10 12:40:56,660 INFO L226 Difference]: Without dead ends: 833 [2022-01-10 12:40:56,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:56,667 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 809 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:56,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 1694 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2022-01-10 12:40:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 359. [2022-01-10 12:40:56,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 338 states have (on average 1.5798816568047338) internal successors, (534), 358 states have internal predecessors, (534), 0 states have call successors, (0), 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 12:40:56,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 534 transitions. [2022-01-10 12:40:56,711 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 534 transitions. Word has length 14 [2022-01-10 12:40:56,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:56,712 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 534 transitions. [2022-01-10 12:40:56,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 12:40:56,712 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 534 transitions. [2022-01-10 12:40:56,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 12:40:56,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:56,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:56,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:40:56,712 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:56,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:56,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1668343003, now seen corresponding path program 1 times [2022-01-10 12:40:56,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:56,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217502799] [2022-01-10 12:40:56,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:56,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:56,764 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 12:40:56,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:56,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217502799] [2022-01-10 12:40:56,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217502799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:56,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:56,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:56,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526375159] [2022-01-10 12:40:56,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:56,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:56,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:56,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:56,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:56,766 INFO L87 Difference]: Start difference. First operand 359 states and 534 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 12:40:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:56,813 INFO L93 Difference]: Finished difference Result 1060 states and 1566 transitions. [2022-01-10 12:40:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:56,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-01-10 12:40:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:56,816 INFO L225 Difference]: With dead ends: 1060 [2022-01-10 12:40:56,816 INFO L226 Difference]: Without dead ends: 829 [2022-01-10 12:40:56,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:56,817 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1195 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:56,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 1699 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:56,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-01-10 12:40:56,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 361. [2022-01-10 12:40:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 340 states have (on average 1.576470588235294) internal successors, (536), 360 states have internal predecessors, (536), 0 states have call successors, (0), 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 12:40:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 536 transitions. [2022-01-10 12:40:56,826 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 536 transitions. Word has length 15 [2022-01-10 12:40:56,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:56,827 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 536 transitions. [2022-01-10 12:40:56,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 12:40:56,828 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 536 transitions. [2022-01-10 12:40:56,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 12:40:56,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:56,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:56,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:40:56,829 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:56,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1646513881, now seen corresponding path program 1 times [2022-01-10 12:40:56,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:56,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83937116] [2022-01-10 12:40:56,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:56,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:56,887 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 12:40:56,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:56,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83937116] [2022-01-10 12:40:56,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83937116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:56,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:56,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:40:56,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065197248] [2022-01-10 12:40:56,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:56,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:40:56,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:56,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:40:56,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:56,889 INFO L87 Difference]: Start difference. First operand 361 states and 536 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 12:40:56,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:56,943 INFO L93 Difference]: Finished difference Result 1373 states and 2034 transitions. [2022-01-10 12:40:56,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:56,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-01-10 12:40:56,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:56,947 INFO L225 Difference]: With dead ends: 1373 [2022-01-10 12:40:56,947 INFO L226 Difference]: Without dead ends: 1040 [2022-01-10 12:40:56,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:56,949 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 1578 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:56,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 1966 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:56,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-01-10 12:40:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 338. [2022-01-10 12:40:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 318 states have (on average 1.5660377358490567) internal successors, (498), 337 states have internal predecessors, (498), 0 states have call successors, (0), 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 12:40:56,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 498 transitions. [2022-01-10 12:40:56,959 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 498 transitions. Word has length 18 [2022-01-10 12:40:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:56,959 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 498 transitions. [2022-01-10 12:40:56,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 12:40:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 498 transitions. [2022-01-10 12:40:56,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 12:40:56,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:56,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:56,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:40:56,960 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:56,961 INFO L85 PathProgramCache]: Analyzing trace with hash -767782713, now seen corresponding path program 1 times [2022-01-10 12:40:56,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:56,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504455419] [2022-01-10 12:40:56,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:56,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:56,993 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 12:40:56,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:56,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504455419] [2022-01-10 12:40:56,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504455419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:56,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:56,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:56,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414494134] [2022-01-10 12:40:56,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:56,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:56,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:56,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:56,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:56,996 INFO L87 Difference]: Start difference. First operand 338 states and 498 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 12:40:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,045 INFO L93 Difference]: Finished difference Result 1037 states and 1527 transitions. [2022-01-10 12:40:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:57,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-10 12:40:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,048 INFO L225 Difference]: With dead ends: 1037 [2022-01-10 12:40:57,048 INFO L226 Difference]: Without dead ends: 806 [2022-01-10 12:40:57,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:57,050 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 1138 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 1989 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-01-10 12:40:57,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 340. [2022-01-10 12:40:57,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 320 states have (on average 1.5625) internal successors, (500), 339 states have internal predecessors, (500), 0 states have call successors, (0), 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 12:40:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 500 transitions. [2022-01-10 12:40:57,062 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 500 transitions. Word has length 19 [2022-01-10 12:40:57,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,062 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 500 transitions. [2022-01-10 12:40:57,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 12:40:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 500 transitions. [2022-01-10 12:40:57,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 12:40:57,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:57,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:40:57,063 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash 468064451, now seen corresponding path program 1 times [2022-01-10 12:40:57,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184158345] [2022-01-10 12:40:57,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,118 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 12:40:57,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184158345] [2022-01-10 12:40:57,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184158345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:40:57,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673904523] [2022-01-10 12:40:57,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:40:57,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:40:57,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:57,120 INFO L87 Difference]: Start difference. First operand 340 states and 500 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 12:40:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,197 INFO L93 Difference]: Finished difference Result 1083 states and 1572 transitions. [2022-01-10 12:40:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:57,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-10 12:40:57,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,200 INFO L225 Difference]: With dead ends: 1083 [2022-01-10 12:40:57,200 INFO L226 Difference]: Without dead ends: 773 [2022-01-10 12:40:57,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:57,201 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 1013 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1013 Valid, 1922 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:40:57,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-01-10 12:40:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 308. [2022-01-10 12:40:57,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 292 states have (on average 1.5068493150684932) internal successors, (440), 307 states have internal predecessors, (440), 0 states have call successors, (0), 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 12:40:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 440 transitions. [2022-01-10 12:40:57,211 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 440 transitions. Word has length 19 [2022-01-10 12:40:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,211 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 440 transitions. [2022-01-10 12:40:57,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 12:40:57,211 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 440 transitions. [2022-01-10 12:40:57,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 12:40:57,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:57,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:40:57,212 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,212 INFO L85 PathProgramCache]: Analyzing trace with hash 929095457, now seen corresponding path program 1 times [2022-01-10 12:40:57,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440782242] [2022-01-10 12:40:57,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,238 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 12:40:57,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440782242] [2022-01-10 12:40:57,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440782242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:57,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917616152] [2022-01-10 12:40:57,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:57,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:57,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:57,239 INFO L87 Difference]: Start difference. First operand 308 states and 440 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 12:40:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,267 INFO L93 Difference]: Finished difference Result 735 states and 1057 transitions. [2022-01-10 12:40:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:57,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-10 12:40:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,269 INFO L225 Difference]: With dead ends: 735 [2022-01-10 12:40:57,269 INFO L226 Difference]: Without dead ends: 520 [2022-01-10 12:40:57,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:57,270 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 307 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1245 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:57,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-01-10 12:40:57,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 304. [2022-01-10 12:40:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 288 states have (on average 1.5) internal successors, (432), 303 states have internal predecessors, (432), 0 states have call successors, (0), 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 12:40:57,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 432 transitions. [2022-01-10 12:40:57,301 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 432 transitions. Word has length 19 [2022-01-10 12:40:57,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,301 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 432 transitions. [2022-01-10 12:40:57,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 12:40:57,302 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 432 transitions. [2022-01-10 12:40:57,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 12:40:57,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,302 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] [2022-01-10 12:40:57,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:40:57,302 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,303 INFO L85 PathProgramCache]: Analyzing trace with hash 921736251, now seen corresponding path program 1 times [2022-01-10 12:40:57,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296152919] [2022-01-10 12:40:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,329 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 12:40:57,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296152919] [2022-01-10 12:40:57,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296152919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:57,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253314612] [2022-01-10 12:40:57,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:57,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:57,330 INFO L87 Difference]: Start difference. First operand 304 states and 432 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:40:57,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,362 INFO L93 Difference]: Finished difference Result 668 states and 974 transitions. [2022-01-10 12:40:57,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:57,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-01-10 12:40:57,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,364 INFO L225 Difference]: With dead ends: 668 [2022-01-10 12:40:57,364 INFO L226 Difference]: Without dead ends: 405 [2022-01-10 12:40:57,364 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 12:40:57,365 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 304 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 783 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-01-10 12:40:57,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 264. [2022-01-10 12:40:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 258 states have (on average 1.4806201550387597) internal successors, (382), 263 states have internal predecessors, (382), 0 states have call successors, (0), 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 12:40:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 382 transitions. [2022-01-10 12:40:57,373 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 382 transitions. Word has length 22 [2022-01-10 12:40:57,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,373 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 382 transitions. [2022-01-10 12:40:57,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 12:40:57,373 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 382 transitions. [2022-01-10 12:40:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 12:40:57,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,374 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] [2022-01-10 12:40:57,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:40:57,374 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1442226104, now seen corresponding path program 1 times [2022-01-10 12:40:57,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095459107] [2022-01-10 12:40:57,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,401 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 12:40:57,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095459107] [2022-01-10 12:40:57,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095459107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:57,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010542420] [2022-01-10 12:40:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:57,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:57,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:57,402 INFO L87 Difference]: Start difference. First operand 264 states and 382 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 12:40:57,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,426 INFO L93 Difference]: Finished difference Result 578 states and 852 transitions. [2022-01-10 12:40:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:57,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-01-10 12:40:57,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,428 INFO L225 Difference]: With dead ends: 578 [2022-01-10 12:40:57,428 INFO L226 Difference]: Without dead ends: 402 [2022-01-10 12:40:57,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:57,428 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 230 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 685 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-01-10 12:40:57,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 258. [2022-01-10 12:40:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4743083003952568) internal successors, (373), 257 states have internal predecessors, (373), 0 states have call successors, (0), 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 12:40:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 373 transitions. [2022-01-10 12:40:57,437 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 373 transitions. Word has length 27 [2022-01-10 12:40:57,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,438 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 373 transitions. [2022-01-10 12:40:57,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 12:40:57,438 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 373 transitions. [2022-01-10 12:40:57,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 12:40:57,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,438 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] [2022-01-10 12:40:57,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:40:57,438 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1857297569, now seen corresponding path program 1 times [2022-01-10 12:40:57,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922556055] [2022-01-10 12:40:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,474 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 12:40:57,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922556055] [2022-01-10 12:40:57,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922556055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:57,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107544270] [2022-01-10 12:40:57,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:57,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:57,476 INFO L87 Difference]: Start difference. First operand 258 states and 373 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 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 12:40:57,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,509 INFO L93 Difference]: Finished difference Result 689 states and 1020 transitions. [2022-01-10 12:40:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:40:57,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 12:40:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,511 INFO L225 Difference]: With dead ends: 689 [2022-01-10 12:40:57,511 INFO L226 Difference]: Without dead ends: 519 [2022-01-10 12:40:57,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:57,512 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 447 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 1070 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-10 12:40:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 253. [2022-01-10 12:40:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 249 states have (on average 1.465863453815261) internal successors, (365), 252 states have internal predecessors, (365), 0 states have call successors, (0), 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 12:40:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 365 transitions. [2022-01-10 12:40:57,521 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 365 transitions. Word has length 33 [2022-01-10 12:40:57,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,521 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 365 transitions. [2022-01-10 12:40:57,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 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 12:40:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 365 transitions. [2022-01-10 12:40:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 12:40:57,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,522 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] [2022-01-10 12:40:57,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:40:57,522 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2132183986, now seen corresponding path program 1 times [2022-01-10 12:40:57,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104765445] [2022-01-10 12:40:57,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,592 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 12:40:57,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104765445] [2022-01-10 12:40:57,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104765445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:40:57,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418287442] [2022-01-10 12:40:57,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:40:57,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:40:57,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:57,593 INFO L87 Difference]: Start difference. First operand 253 states and 365 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 12:40:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,615 INFO L93 Difference]: Finished difference Result 415 states and 607 transitions. [2022-01-10 12:40:57,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:57,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-10 12:40:57,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,617 INFO L225 Difference]: With dead ends: 415 [2022-01-10 12:40:57,617 INFO L226 Difference]: Without dead ends: 250 [2022-01-10 12:40:57,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:40:57,618 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 436 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 578 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-01-10 12:40:57,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-01-10 12:40:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 246 states have (on average 1.4552845528455285) internal successors, (358), 248 states have internal predecessors, (358), 0 states have call successors, (0), 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 12:40:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 358 transitions. [2022-01-10 12:40:57,627 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 358 transitions. Word has length 40 [2022-01-10 12:40:57,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,627 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 358 transitions. [2022-01-10 12:40:57,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 12:40:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 358 transitions. [2022-01-10 12:40:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 12:40:57,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,628 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] [2022-01-10 12:40:57,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:40:57,628 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,628 INFO L85 PathProgramCache]: Analyzing trace with hash -680731746, now seen corresponding path program 1 times [2022-01-10 12:40:57,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63495769] [2022-01-10 12:40:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,691 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 12:40:57,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63495769] [2022-01-10 12:40:57,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63495769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:57,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987063920] [2022-01-10 12:40:57,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:57,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:57,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:57,693 INFO L87 Difference]: Start difference. First operand 249 states and 358 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 12:40:57,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:57,704 INFO L93 Difference]: Finished difference Result 459 states and 668 transitions. [2022-01-10 12:40:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:57,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-01-10 12:40:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:57,706 INFO L225 Difference]: With dead ends: 459 [2022-01-10 12:40:57,706 INFO L226 Difference]: Without dead ends: 298 [2022-01-10 12:40:57,708 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 12:40:57,708 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 232 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:57,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 593 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:57,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-01-10 12:40:57,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 245. [2022-01-10 12:40:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 243 states have (on average 1.4526748971193415) internal successors, (353), 244 states have internal predecessors, (353), 0 states have call successors, (0), 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 12:40:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 353 transitions. [2022-01-10 12:40:57,720 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 353 transitions. Word has length 48 [2022-01-10 12:40:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:57,720 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 353 transitions. [2022-01-10 12:40:57,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 12:40:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 353 transitions. [2022-01-10 12:40:57,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 12:40:57,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:57,721 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 12:40:57,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:40:57,721 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:57,722 INFO L85 PathProgramCache]: Analyzing trace with hash 500866980, now seen corresponding path program 1 times [2022-01-10 12:40:57,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:57,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490501449] [2022-01-10 12:40:57,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:57,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:57,828 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 12:40:57,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:57,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490501449] [2022-01-10 12:40:57,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490501449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:57,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:57,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:57,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078844026] [2022-01-10 12:40:57,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:57,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:57,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:57,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:57,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:57,829 INFO L87 Difference]: Start difference. First operand 245 states and 353 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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 12:40:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:58,086 INFO L93 Difference]: Finished difference Result 684 states and 1000 transitions. [2022-01-10 12:40:58,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:58,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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 12:40:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:58,088 INFO L225 Difference]: With dead ends: 684 [2022-01-10 12:40:58,088 INFO L226 Difference]: Without dead ends: 527 [2022-01-10 12:40:58,088 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 12:40:58,089 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 633 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:58,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [633 Valid, 1282 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:40:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-01-10 12:40:58,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 285. [2022-01-10 12:40:58,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.4507042253521127) internal successors, (412), 284 states have internal predecessors, (412), 0 states have call successors, (0), 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 12:40:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 412 transitions. [2022-01-10 12:40:58,113 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 412 transitions. Word has length 51 [2022-01-10 12:40:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:58,113 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 412 transitions. [2022-01-10 12:40:58,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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 12:40:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 412 transitions. [2022-01-10 12:40:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 12:40:58,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:58,114 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] [2022-01-10 12:40:58,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:40:58,115 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:58,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:58,115 INFO L85 PathProgramCache]: Analyzing trace with hash 222451843, now seen corresponding path program 1 times [2022-01-10 12:40:58,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:58,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856591643] [2022-01-10 12:40:58,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:58,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:58,186 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 12:40:58,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:58,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856591643] [2022-01-10 12:40:58,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856591643] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:58,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:58,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:58,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588965946] [2022-01-10 12:40:58,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:58,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:58,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:58,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:58,189 INFO L87 Difference]: Start difference. First operand 285 states and 412 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 12:40:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:58,237 INFO L93 Difference]: Finished difference Result 664 states and 972 transitions. [2022-01-10 12:40:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:58,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 12:40:58,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:58,238 INFO L225 Difference]: With dead ends: 664 [2022-01-10 12:40:58,238 INFO L226 Difference]: Without dead ends: 467 [2022-01-10 12:40:58,239 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 12:40:58,239 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 187 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:58,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 649 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:58,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-10 12:40:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 330. [2022-01-10 12:40:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.4376899696048633) internal successors, (473), 329 states have internal predecessors, (473), 0 states have call successors, (0), 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 12:40:58,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 473 transitions. [2022-01-10 12:40:58,266 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 473 transitions. Word has length 69 [2022-01-10 12:40:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:58,267 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 473 transitions. [2022-01-10 12:40:58,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 12:40:58,267 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 473 transitions. [2022-01-10 12:40:58,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 12:40:58,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:58,267 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] [2022-01-10 12:40:58,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:40:58,268 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:58,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:58,268 INFO L85 PathProgramCache]: Analyzing trace with hash 955025126, now seen corresponding path program 1 times [2022-01-10 12:40:58,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:58,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358060752] [2022-01-10 12:40:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:58,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:58,325 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 12:40:58,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:58,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358060752] [2022-01-10 12:40:58,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358060752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:58,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:58,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:58,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985579756] [2022-01-10 12:40:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:58,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:58,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:58,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:58,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:58,327 INFO L87 Difference]: Start difference. First operand 330 states and 473 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 12:40:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:58,380 INFO L93 Difference]: Finished difference Result 788 states and 1141 transitions. [2022-01-10 12:40:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:58,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-10 12:40:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:58,382 INFO L225 Difference]: With dead ends: 788 [2022-01-10 12:40:58,382 INFO L226 Difference]: Without dead ends: 546 [2022-01-10 12:40:58,382 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 12:40:58,384 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 192 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:58,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 668 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-01-10 12:40:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 396. [2022-01-10 12:40:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.4253164556962026) internal successors, (563), 395 states have internal predecessors, (563), 0 states have call successors, (0), 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 12:40:58,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 563 transitions. [2022-01-10 12:40:58,413 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 563 transitions. Word has length 70 [2022-01-10 12:40:58,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:58,413 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 563 transitions. [2022-01-10 12:40:58,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 12:40:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 563 transitions. [2022-01-10 12:40:58,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 12:40:58,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:58,414 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] [2022-01-10 12:40:58,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:40:58,415 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:58,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:58,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1048252312, now seen corresponding path program 1 times [2022-01-10 12:40:58,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:58,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340185341] [2022-01-10 12:40:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:58,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:58,478 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 12:40:58,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:58,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340185341] [2022-01-10 12:40:58,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340185341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:58,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:58,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:58,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610061458] [2022-01-10 12:40:58,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:58,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:58,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:58,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:58,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:58,479 INFO L87 Difference]: Start difference. First operand 396 states and 563 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 12:40:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:58,541 INFO L93 Difference]: Finished difference Result 960 states and 1377 transitions. [2022-01-10 12:40:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:58,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-10 12:40:58,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:58,544 INFO L225 Difference]: With dead ends: 960 [2022-01-10 12:40:58,544 INFO L226 Difference]: Without dead ends: 652 [2022-01-10 12:40:58,544 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 12:40:58,545 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 198 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:58,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 688 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-01-10 12:40:58,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 474. [2022-01-10 12:40:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 473 states have (on average 1.4186046511627908) internal successors, (671), 473 states have internal predecessors, (671), 0 states have call successors, (0), 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 12:40:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 671 transitions. [2022-01-10 12:40:58,590 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 671 transitions. Word has length 71 [2022-01-10 12:40:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:58,590 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 671 transitions. [2022-01-10 12:40:58,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 12:40:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 671 transitions. [2022-01-10 12:40:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 12:40:58,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:58,591 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] [2022-01-10 12:40:58,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:40:58,591 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:58,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:58,592 INFO L85 PathProgramCache]: Analyzing trace with hash -836901399, now seen corresponding path program 1 times [2022-01-10 12:40:58,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:58,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347891454] [2022-01-10 12:40:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:58,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:58,645 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 12:40:58,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:58,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347891454] [2022-01-10 12:40:58,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347891454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:58,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:58,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:58,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957404855] [2022-01-10 12:40:58,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:58,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:58,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:58,648 INFO L87 Difference]: Start difference. First operand 474 states and 671 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 12:40:58,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:58,694 INFO L93 Difference]: Finished difference Result 862 states and 1224 transitions. [2022-01-10 12:40:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:58,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-10 12:40:58,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:58,696 INFO L225 Difference]: With dead ends: 862 [2022-01-10 12:40:58,696 INFO L226 Difference]: Without dead ends: 450 [2022-01-10 12:40:58,696 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 12:40:58,697 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 0 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:58,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 656 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:58,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-01-10 12:40:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-01-10 12:40:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.4120267260579065) internal successors, (634), 449 states have internal predecessors, (634), 0 states have call successors, (0), 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 12:40:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 634 transitions. [2022-01-10 12:40:58,739 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 634 transitions. Word has length 71 [2022-01-10 12:40:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:58,739 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 634 transitions. [2022-01-10 12:40:58,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 12:40:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 634 transitions. [2022-01-10 12:40:58,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 12:40:58,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:58,744 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] [2022-01-10 12:40:58,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 12:40:58,744 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:58,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:58,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1438794684, now seen corresponding path program 1 times [2022-01-10 12:40:58,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:58,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730525395] [2022-01-10 12:40:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:58,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:58,792 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 12:40:58,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:58,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730525395] [2022-01-10 12:40:58,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730525395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:58,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:58,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:58,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698728708] [2022-01-10 12:40:58,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:58,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:58,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:58,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:58,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:58,793 INFO L87 Difference]: Start difference. First operand 450 states and 634 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 12:40:58,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:58,899 INFO L93 Difference]: Finished difference Result 1104 states and 1544 transitions. [2022-01-10 12:40:58,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:58,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-10 12:40:58,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:58,902 INFO L225 Difference]: With dead ends: 1104 [2022-01-10 12:40:58,902 INFO L226 Difference]: Without dead ends: 742 [2022-01-10 12:40:58,902 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 12:40:58,903 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 285 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:58,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 593 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:58,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-01-10 12:40:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 450. [2022-01-10 12:40:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.3919821826280623) internal successors, (625), 449 states have internal predecessors, (625), 0 states have call successors, (0), 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 12:40:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 625 transitions. [2022-01-10 12:40:58,935 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 625 transitions. Word has length 71 [2022-01-10 12:40:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:58,935 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 625 transitions. [2022-01-10 12:40:58,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 12:40:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 625 transitions. [2022-01-10 12:40:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 12:40:58,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:58,936 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] [2022-01-10 12:40:58,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 12:40:58,936 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:58,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:58,936 INFO L85 PathProgramCache]: Analyzing trace with hash -512925208, now seen corresponding path program 1 times [2022-01-10 12:40:58,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:58,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218035939] [2022-01-10 12:40:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:58,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:58,974 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 12:40:58,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:58,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218035939] [2022-01-10 12:40:58,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218035939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:58,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:58,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:58,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59491661] [2022-01-10 12:40:58,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:58,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:58,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:58,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:58,975 INFO L87 Difference]: Start difference. First operand 450 states and 625 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 12:40:59,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:59,082 INFO L93 Difference]: Finished difference Result 1180 states and 1634 transitions. [2022-01-10 12:40:59,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:59,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-10 12:40:59,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:59,085 INFO L225 Difference]: With dead ends: 1180 [2022-01-10 12:40:59,085 INFO L226 Difference]: Without dead ends: 818 [2022-01-10 12:40:59,085 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 12:40:59,086 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 232 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:59,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 790 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:59,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-01-10 12:40:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 450. [2022-01-10 12:40:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.3897550111358574) internal successors, (624), 449 states have internal predecessors, (624), 0 states have call successors, (0), 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 12:40:59,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 624 transitions. [2022-01-10 12:40:59,118 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 624 transitions. Word has length 72 [2022-01-10 12:40:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:59,119 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 624 transitions. [2022-01-10 12:40:59,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 12:40:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 624 transitions. [2022-01-10 12:40:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 12:40:59,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:59,120 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] [2022-01-10 12:40:59,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 12:40:59,120 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:59,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash 940172024, now seen corresponding path program 1 times [2022-01-10 12:40:59,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:59,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081554763] [2022-01-10 12:40:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:59,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:59,177 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 12:40:59,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:59,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081554763] [2022-01-10 12:40:59,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081554763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:59,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:59,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:59,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062913400] [2022-01-10 12:40:59,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:59,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:59,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:59,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:59,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:59,179 INFO L87 Difference]: Start difference. First operand 450 states and 624 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 12:40:59,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:59,274 INFO L93 Difference]: Finished difference Result 1018 states and 1410 transitions. [2022-01-10 12:40:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:40:59,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-01-10 12:40:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:59,278 INFO L225 Difference]: With dead ends: 1018 [2022-01-10 12:40:59,278 INFO L226 Difference]: Without dead ends: 1016 [2022-01-10 12:40:59,278 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 12:40:59,278 INFO L933 BasicCegarLoop]: 534 mSDtfsCounter, 362 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:59,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1372 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:59,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-01-10 12:40:59,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 452. [2022-01-10 12:40:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.3880266075388026) internal successors, (626), 451 states have internal predecessors, (626), 0 states have call successors, (0), 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 12:40:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 626 transitions. [2022-01-10 12:40:59,315 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 626 transitions. Word has length 73 [2022-01-10 12:40:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:59,315 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 626 transitions. [2022-01-10 12:40:59,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 12:40:59,315 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 626 transitions. [2022-01-10 12:40:59,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 12:40:59,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:59,324 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] [2022-01-10 12:40:59,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 12:40:59,324 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:59,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1070050363, now seen corresponding path program 1 times [2022-01-10 12:40:59,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:59,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42062083] [2022-01-10 12:40:59,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:59,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:59,395 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 12:40:59,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:59,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42062083] [2022-01-10 12:40:59,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42062083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:59,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:59,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:40:59,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332027723] [2022-01-10 12:40:59,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:59,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:40:59,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:59,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:40:59,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:40:59,396 INFO L87 Difference]: Start difference. First operand 452 states and 626 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 12:40:59,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:59,667 INFO L93 Difference]: Finished difference Result 1305 states and 1798 transitions. [2022-01-10 12:40:59,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 12:40:59,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-10 12:40:59,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:59,669 INFO L225 Difference]: With dead ends: 1305 [2022-01-10 12:40:59,669 INFO L226 Difference]: Without dead ends: 941 [2022-01-10 12:40:59,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-01-10 12:40:59,670 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 626 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:59,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 2729 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:40:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-01-10 12:40:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 472. [2022-01-10 12:40:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3885350318471337) internal successors, (654), 471 states have internal predecessors, (654), 0 states have call successors, (0), 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 12:40:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 654 transitions. [2022-01-10 12:40:59,710 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 654 transitions. Word has length 76 [2022-01-10 12:40:59,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:59,710 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 654 transitions. [2022-01-10 12:40:59,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 12:40:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 654 transitions. [2022-01-10 12:40:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 12:40:59,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:59,711 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] [2022-01-10 12:40:59,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 12:40:59,711 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:59,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:59,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1041421212, now seen corresponding path program 1 times [2022-01-10 12:40:59,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:59,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156200033] [2022-01-10 12:40:59,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:59,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:59,759 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 12:40:59,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156200033] [2022-01-10 12:40:59,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156200033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:59,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:59,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:40:59,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878013586] [2022-01-10 12:40:59,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:59,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:40:59,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:40:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:59,760 INFO L87 Difference]: Start difference. First operand 472 states and 654 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 12:40:59,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:59,889 INFO L93 Difference]: Finished difference Result 1495 states and 2056 transitions. [2022-01-10 12:40:59,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:40:59,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-10 12:40:59,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:59,892 INFO L225 Difference]: With dead ends: 1495 [2022-01-10 12:40:59,892 INFO L226 Difference]: Without dead ends: 1025 [2022-01-10 12:40:59,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:40:59,893 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 430 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:59,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 943 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:59,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-01-10 12:40:59,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 468. [2022-01-10 12:40:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.3533190578158458) internal successors, (632), 467 states have internal predecessors, (632), 0 states have call successors, (0), 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 12:40:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 632 transitions. [2022-01-10 12:40:59,941 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 632 transitions. Word has length 76 [2022-01-10 12:40:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:59,941 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 632 transitions. [2022-01-10 12:40:59,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 12:40:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 632 transitions. [2022-01-10 12:40:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 12:40:59,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:59,942 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] [2022-01-10 12:40:59,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 12:40:59,942 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:40:59,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:59,943 INFO L85 PathProgramCache]: Analyzing trace with hash 661861090, now seen corresponding path program 1 times [2022-01-10 12:40:59,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:59,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021542160] [2022-01-10 12:40:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:59,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:00,005 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 12:41:00,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:00,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021542160] [2022-01-10 12:41:00,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021542160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:00,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:00,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:41:00,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065126845] [2022-01-10 12:41:00,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:00,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:41:00,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:41:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:41:00,006 INFO L87 Difference]: Start difference. First operand 468 states and 632 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 12:41:00,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:00,126 INFO L93 Difference]: Finished difference Result 1379 states and 1865 transitions. [2022-01-10 12:41:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:41:00,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-10 12:41:00,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:00,129 INFO L225 Difference]: With dead ends: 1379 [2022-01-10 12:41:00,129 INFO L226 Difference]: Without dead ends: 921 [2022-01-10 12:41:00,129 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 12:41:00,130 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 294 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:00,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 598 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:00,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-01-10 12:41:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 472. [2022-01-10 12:41:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3503184713375795) internal successors, (636), 471 states have internal predecessors, (636), 0 states have call successors, (0), 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 12:41:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 636 transitions. [2022-01-10 12:41:00,179 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 636 transitions. Word has length 82 [2022-01-10 12:41:00,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:00,179 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 636 transitions. [2022-01-10 12:41:00,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 12:41:00,179 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 636 transitions. [2022-01-10 12:41:00,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 12:41:00,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:00,180 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] [2022-01-10 12:41:00,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 12:41:00,181 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:00,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:00,181 INFO L85 PathProgramCache]: Analyzing trace with hash -402635489, now seen corresponding path program 1 times [2022-01-10 12:41:00,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:00,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400827411] [2022-01-10 12:41:00,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:00,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:00,211 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 12:41:00,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:00,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400827411] [2022-01-10 12:41:00,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400827411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:00,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:00,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:41:00,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751064441] [2022-01-10 12:41:00,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:00,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:41:00,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:00,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:41:00,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:41:00,213 INFO L87 Difference]: Start difference. First operand 472 states and 636 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 12:41:00,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:00,317 INFO L93 Difference]: Finished difference Result 1321 states and 1784 transitions. [2022-01-10 12:41:00,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:41:00,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-10 12:41:00,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:00,320 INFO L225 Difference]: With dead ends: 1321 [2022-01-10 12:41:00,320 INFO L226 Difference]: Without dead ends: 861 [2022-01-10 12:41:00,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:41:00,321 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 220 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:00,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 904 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:00,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-01-10 12:41:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 472. [2022-01-10 12:41:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3481953290870488) internal successors, (635), 471 states have internal predecessors, (635), 0 states have call successors, (0), 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 12:41:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 635 transitions. [2022-01-10 12:41:00,373 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 635 transitions. Word has length 104 [2022-01-10 12:41:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:00,373 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 635 transitions. [2022-01-10 12:41:00,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 12:41:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 635 transitions. [2022-01-10 12:41:00,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 12:41:00,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:00,374 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] [2022-01-10 12:41:00,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 12:41:00,374 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:00,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:00,374 INFO L85 PathProgramCache]: Analyzing trace with hash -41699399, now seen corresponding path program 1 times [2022-01-10 12:41:00,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:00,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028218131] [2022-01-10 12:41:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:00,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 12:41:00,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:00,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028218131] [2022-01-10 12:41:00,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028218131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:00,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:00,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:41:00,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376391665] [2022-01-10 12:41:00,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:00,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:41:00,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:00,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:41:00,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:41:00,411 INFO L87 Difference]: Start difference. First operand 472 states and 635 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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 12:41:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:00,503 INFO L93 Difference]: Finished difference Result 1305 states and 1764 transitions. [2022-01-10 12:41:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:41:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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 107 [2022-01-10 12:41:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:00,505 INFO L225 Difference]: With dead ends: 1305 [2022-01-10 12:41:00,505 INFO L226 Difference]: Without dead ends: 859 [2022-01-10 12:41:00,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:41:00,506 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 219 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 904 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 12:41:00,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 904 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:00,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-01-10 12:41:00,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 472. [2022-01-10 12:41:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.346072186836518) internal successors, (634), 471 states have internal predecessors, (634), 0 states have call successors, (0), 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 12:41:00,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 634 transitions. [2022-01-10 12:41:00,548 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 634 transitions. Word has length 107 [2022-01-10 12:41:00,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:00,548 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 634 transitions. [2022-01-10 12:41:00,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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 12:41:00,548 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 634 transitions. [2022-01-10 12:41:00,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 12:41:00,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:00,549 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] [2022-01-10 12:41:00,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 12:41:00,549 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:00,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:00,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1640341709, now seen corresponding path program 1 times [2022-01-10 12:41:00,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:00,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564404697] [2022-01-10 12:41:00,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:00,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:00,586 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 12:41:00,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:00,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564404697] [2022-01-10 12:41:00,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564404697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:00,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:00,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:41:00,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310122960] [2022-01-10 12:41:00,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:00,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:41:00,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:00,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:41:00,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:41:00,587 INFO L87 Difference]: Start difference. First operand 472 states and 634 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:41:00,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:00,688 INFO L93 Difference]: Finished difference Result 1287 states and 1742 transitions. [2022-01-10 12:41:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:41:00,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 12:41:00,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:00,690 INFO L225 Difference]: With dead ends: 1287 [2022-01-10 12:41:00,690 INFO L226 Difference]: Without dead ends: 857 [2022-01-10 12:41:00,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:41:00,691 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 218 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:00,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 904 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-01-10 12:41:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 472. [2022-01-10 12:41:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3439490445859872) internal successors, (633), 471 states have internal predecessors, (633), 0 states have call successors, (0), 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 12:41:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 633 transitions. [2022-01-10 12:41:00,733 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 633 transitions. Word has length 110 [2022-01-10 12:41:00,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:00,733 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 633 transitions. [2022-01-10 12:41:00,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:41:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 633 transitions. [2022-01-10 12:41:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 12:41:00,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:00,734 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] [2022-01-10 12:41:00,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 12:41:00,735 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:00,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1627402434, now seen corresponding path program 1 times [2022-01-10 12:41:00,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:00,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304482218] [2022-01-10 12:41:00,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:00,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:00,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:00,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304482218] [2022-01-10 12:41:00,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304482218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:00,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:00,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:41:00,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869810002] [2022-01-10 12:41:00,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:00,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:41:00,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:00,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:41:00,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:41:00,768 INFO L87 Difference]: Start difference. First operand 472 states and 633 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:41:00,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:00,819 INFO L93 Difference]: Finished difference Result 858 states and 1157 transitions. [2022-01-10 12:41:00,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:41:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 12:41:00,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:00,821 INFO L225 Difference]: With dead ends: 858 [2022-01-10 12:41:00,821 INFO L226 Difference]: Without dead ends: 442 [2022-01-10 12:41:00,821 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 12:41:00,821 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 233 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:00,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 313 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:00,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-01-10 12:41:00,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-01-10 12:41:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3401360544217686) internal successors, (591), 441 states have internal predecessors, (591), 0 states have call successors, (0), 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 12:41:00,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 591 transitions. [2022-01-10 12:41:00,862 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 591 transitions. Word has length 113 [2022-01-10 12:41:00,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:00,862 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 591 transitions. [2022-01-10 12:41:00,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:41:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 591 transitions. [2022-01-10 12:41:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:41:00,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:00,864 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] [2022-01-10 12:41:00,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 12:41:00,864 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:00,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash -714662677, now seen corresponding path program 1 times [2022-01-10 12:41:00,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:00,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147905894] [2022-01-10 12:41:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:00,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:00,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:00,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147905894] [2022-01-10 12:41:00,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147905894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:00,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:00,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:41:00,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057970987] [2022-01-10 12:41:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:00,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:41:00,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:00,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:41:00,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:41:00,917 INFO L87 Difference]: Start difference. First operand 442 states and 591 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:41:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:00,989 INFO L93 Difference]: Finished difference Result 839 states and 1131 transitions. [2022-01-10 12:41:00,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:41:00,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-01-10 12:41:00,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:00,991 INFO L225 Difference]: With dead ends: 839 [2022-01-10 12:41:00,991 INFO L226 Difference]: Without dead ends: 442 [2022-01-10 12:41:00,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:41:00,992 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 323 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:00,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 331 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-01-10 12:41:01,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-01-10 12:41:01,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3378684807256236) internal successors, (590), 441 states have internal predecessors, (590), 0 states have call successors, (0), 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 12:41:01,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 590 transitions. [2022-01-10 12:41:01,047 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 590 transitions. Word has length 115 [2022-01-10 12:41:01,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:01,048 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 590 transitions. [2022-01-10 12:41:01,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:41:01,048 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 590 transitions. [2022-01-10 12:41:01,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:41:01,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:01,049 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] [2022-01-10 12:41:01,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 12:41:01,049 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash -492369166, now seen corresponding path program 1 times [2022-01-10 12:41:01,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:01,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380198887] [2022-01-10 12:41:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:01,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:01,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:01,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380198887] [2022-01-10 12:41:01,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380198887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:01,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:01,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:41:01,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820226037] [2022-01-10 12:41:01,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:01,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:41:01,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:01,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:41:01,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:41:01,092 INFO L87 Difference]: Start difference. First operand 442 states and 590 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 12:41:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:01,146 INFO L93 Difference]: Finished difference Result 827 states and 1113 transitions. [2022-01-10 12:41:01,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:41:01,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-10 12:41:01,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:01,147 INFO L225 Difference]: With dead ends: 827 [2022-01-10 12:41:01,147 INFO L226 Difference]: Without dead ends: 442 [2022-01-10 12:41:01,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:41:01,148 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 1 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:01,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 823 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-01-10 12:41:01,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-01-10 12:41:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.3356009070294785) internal successors, (589), 441 states have internal predecessors, (589), 0 states have call successors, (0), 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 12:41:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 589 transitions. [2022-01-10 12:41:01,189 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 589 transitions. Word has length 116 [2022-01-10 12:41:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:01,189 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 589 transitions. [2022-01-10 12:41:01,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 12:41:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 589 transitions. [2022-01-10 12:41:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:41:01,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:01,190 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] [2022-01-10 12:41:01,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 12:41:01,190 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:01,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:01,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1656754174, now seen corresponding path program 1 times [2022-01-10 12:41:01,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:01,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740865177] [2022-01-10 12:41:01,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:01,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:01,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:01,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740865177] [2022-01-10 12:41:01,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740865177] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:41:01,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084190056] [2022-01-10 12:41:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:01,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:41:01,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:41:01,282 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 12:41:01,283 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 12:41:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:01,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 12:41:01,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:41:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:01,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:41:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:01,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084190056] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:41:01,888 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:41:01,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2022-01-10 12:41:01,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389408699] [2022-01-10 12:41:01,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:41:01,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 12:41:01,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 12:41:01,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:41:01,889 INFO L87 Difference]: Start difference. First operand 442 states and 589 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 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 12:41:02,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:02,348 INFO L93 Difference]: Finished difference Result 2048 states and 2759 transitions. [2022-01-10 12:41:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 12:41:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 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 119 [2022-01-10 12:41:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:02,353 INFO L225 Difference]: With dead ends: 2048 [2022-01-10 12:41:02,353 INFO L226 Difference]: Without dead ends: 1668 [2022-01-10 12:41:02,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2022-01-10 12:41:02,354 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 1349 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:02,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 3652 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:41:02,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2022-01-10 12:41:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 741. [2022-01-10 12:41:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.3256756756756756) internal successors, (981), 740 states have internal predecessors, (981), 0 states have call successors, (0), 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 12:41:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 981 transitions. [2022-01-10 12:41:02,460 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 981 transitions. Word has length 119 [2022-01-10 12:41:02,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:02,460 INFO L470 AbstractCegarLoop]: Abstraction has 741 states and 981 transitions. [2022-01-10 12:41:02,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 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 12:41:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 981 transitions. [2022-01-10 12:41:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:41:02,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:02,461 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] [2022-01-10 12:41:02,482 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 12:41:02,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-01-10 12:41:02,676 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:02,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:02,676 INFO L85 PathProgramCache]: Analyzing trace with hash 287091832, now seen corresponding path program 1 times [2022-01-10 12:41:02,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:02,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750430075] [2022-01-10 12:41:02,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:02,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:02,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750430075] [2022-01-10 12:41:02,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750430075] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:41:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143360031] [2022-01-10 12:41:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:02,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:41:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:41:02,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:41:02,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 12:41:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:03,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 12:41:03,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:41:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:03,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:41:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:03,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143360031] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:41:03,615 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:41:03,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-01-10 12:41:03,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252068072] [2022-01-10 12:41:03,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:41:03,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 12:41:03,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:03,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 12:41:03,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-01-10 12:41:03,616 INFO L87 Difference]: Start difference. First operand 741 states and 981 transitions. Second operand has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 0 states have call successors, (0), 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 12:41:04,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:04,111 INFO L93 Difference]: Finished difference Result 2339 states and 3127 transitions. [2022-01-10 12:41:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 12:41:04,112 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 0 states have call successors, (0), 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 119 [2022-01-10 12:41:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:04,116 INFO L225 Difference]: With dead ends: 2339 [2022-01-10 12:41:04,117 INFO L226 Difference]: Without dead ends: 1959 [2022-01-10 12:41:04,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2022-01-10 12:41:04,118 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1551 mSDsluCounter, 3963 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 4470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:04,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 4470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:41:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2022-01-10 12:41:04,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1327. [2022-01-10 12:41:04,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1326 states have (on average 1.3205128205128205) internal successors, (1751), 1326 states have internal predecessors, (1751), 0 states have call successors, (0), 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 12:41:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1751 transitions. [2022-01-10 12:41:04,251 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1751 transitions. Word has length 119 [2022-01-10 12:41:04,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:04,251 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 1751 transitions. [2022-01-10 12:41:04,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 0 states have call successors, (0), 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 12:41:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1751 transitions. [2022-01-10 12:41:04,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:41:04,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:04,253 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] [2022-01-10 12:41:04,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-10 12:41:04,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-01-10 12:41:04,472 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:04,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2116526161, now seen corresponding path program 1 times [2022-01-10 12:41:04,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:04,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392706447] [2022-01-10 12:41:04,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:04,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:04,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:04,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392706447] [2022-01-10 12:41:04,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392706447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:04,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:04,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:41:04,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196984692] [2022-01-10 12:41:04,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:04,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:41:04,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:41:04,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:41:04,513 INFO L87 Difference]: Start difference. First operand 1327 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 12:41:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:04,639 INFO L93 Difference]: Finished difference Result 2023 states and 2680 transitions. [2022-01-10 12:41:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:41:04,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-10 12:41:04,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:04,641 INFO L225 Difference]: With dead ends: 2023 [2022-01-10 12:41:04,641 INFO L226 Difference]: Without dead ends: 699 [2022-01-10 12:41:04,642 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 12:41:04,643 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 132 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:04,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 469 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-01-10 12:41:04,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 691. [2022-01-10 12:41:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.3318840579710145) internal successors, (919), 690 states have internal predecessors, (919), 0 states have call successors, (0), 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 12:41:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 919 transitions. [2022-01-10 12:41:04,739 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 919 transitions. Word has length 120 [2022-01-10 12:41:04,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:04,739 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 919 transitions. [2022-01-10 12:41:04,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 12:41:04,739 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 919 transitions. [2022-01-10 12:41:04,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 12:41:04,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:04,740 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] [2022-01-10 12:41:04,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 12:41:04,740 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:04,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:04,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1920275178, now seen corresponding path program 1 times [2022-01-10 12:41:04,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:04,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44305404] [2022-01-10 12:41:04,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:04,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:04,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:04,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44305404] [2022-01-10 12:41:04,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44305404] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:41:04,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506181233] [2022-01-10 12:41:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:04,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:41:04,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:41:04,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:41:04,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 12:41:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:05,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 12:41:05,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:41:05,230 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:05,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:41:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:05,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506181233] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:41:05,412 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:41:05,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2022-01-10 12:41:05,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718472864] [2022-01-10 12:41:05,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:41:05,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 12:41:05,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:05,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 12:41:05,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:41:05,427 INFO L87 Difference]: Start difference. First operand 691 states and 919 transitions. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 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 12:41:05,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:05,814 INFO L93 Difference]: Finished difference Result 1743 states and 2349 transitions. [2022-01-10 12:41:05,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 12:41:05,815 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 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 126 [2022-01-10 12:41:05,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:05,817 INFO L225 Difference]: With dead ends: 1743 [2022-01-10 12:41:05,818 INFO L226 Difference]: Without dead ends: 1363 [2022-01-10 12:41:05,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2022-01-10 12:41:05,819 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1748 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:05,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1748 Valid, 2396 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:41:05,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-01-10 12:41:05,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 705. [2022-01-10 12:41:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.3252840909090908) internal successors, (933), 704 states have internal predecessors, (933), 0 states have call successors, (0), 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 12:41:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 933 transitions. [2022-01-10 12:41:05,896 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 933 transitions. Word has length 126 [2022-01-10 12:41:05,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:05,896 INFO L470 AbstractCegarLoop]: Abstraction has 705 states and 933 transitions. [2022-01-10 12:41:05,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 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 12:41:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 933 transitions. [2022-01-10 12:41:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 12:41:05,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:05,897 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] [2022-01-10 12:41:05,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 12:41:06,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:41:06,112 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash -695250452, now seen corresponding path program 1 times [2022-01-10 12:41:06,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:06,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127596668] [2022-01-10 12:41:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:06,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:06,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:06,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127596668] [2022-01-10 12:41:06,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127596668] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:41:06,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78910376] [2022-01-10 12:41:06,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:06,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:41:06,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:41:06,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:41:06,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 12:41:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:06,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 12:41:06,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 12:41:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:06,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 12:41:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 12:41:06,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78910376] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 12:41:06,818 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 12:41:06,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-01-10 12:41:06,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961792046] [2022-01-10 12:41:06,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 12:41:06,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:41:06,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:06,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:41:06,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:41:06,819 INFO L87 Difference]: Start difference. First operand 705 states and 933 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 12:41:07,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:07,041 INFO L93 Difference]: Finished difference Result 1476 states and 1943 transitions. [2022-01-10 12:41:07,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:41:07,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 127 [2022-01-10 12:41:07,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:07,043 INFO L225 Difference]: With dead ends: 1476 [2022-01-10 12:41:07,043 INFO L226 Difference]: Without dead ends: 781 [2022-01-10 12:41:07,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:41:07,044 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 144 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:07,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1100 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:41:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-01-10 12:41:07,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 781. [2022-01-10 12:41:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 780 states have (on average 1.2987179487179488) internal successors, (1013), 780 states have internal predecessors, (1013), 0 states have call successors, (0), 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 12:41:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1013 transitions. [2022-01-10 12:41:07,135 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1013 transitions. Word has length 127 [2022-01-10 12:41:07,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:07,136 INFO L470 AbstractCegarLoop]: Abstraction has 781 states and 1013 transitions. [2022-01-10 12:41:07,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 12:41:07,136 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1013 transitions. [2022-01-10 12:41:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-10 12:41:07,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:07,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:41:07,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 12:41:07,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:41:07,355 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash -598188994, now seen corresponding path program 2 times [2022-01-10 12:41:07,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:07,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953342826] [2022-01-10 12:41:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:07,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 12:41:07,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:07,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953342826] [2022-01-10 12:41:07,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953342826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:07,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:07,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:41:07,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922042033] [2022-01-10 12:41:07,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:07,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:41:07,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:07,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:41:07,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:41:07,584 INFO L87 Difference]: Start difference. First operand 781 states and 1013 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 12:41:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:07,954 INFO L93 Difference]: Finished difference Result 2210 states and 2977 transitions. [2022-01-10 12:41:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:41:07,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 201 [2022-01-10 12:41:07,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:07,961 INFO L225 Difference]: With dead ends: 2210 [2022-01-10 12:41:07,962 INFO L226 Difference]: Without dead ends: 1830 [2022-01-10 12:41:07,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:41:07,962 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 584 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:07,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 3153 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:41:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2022-01-10 12:41:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 827. [2022-01-10 12:41:08,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 826 states have (on average 1.3087167070217918) internal successors, (1081), 826 states have internal predecessors, (1081), 0 states have call successors, (0), 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 12:41:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1081 transitions. [2022-01-10 12:41:08,062 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1081 transitions. Word has length 201 [2022-01-10 12:41:08,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:08,062 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 1081 transitions. [2022-01-10 12:41:08,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 12:41:08,062 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1081 transitions. [2022-01-10 12:41:08,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-10 12:41:08,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:08,063 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:41:08,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 12:41:08,063 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1928456094, now seen corresponding path program 1 times [2022-01-10 12:41:08,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:08,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513453055] [2022-01-10 12:41:08,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:08,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:08,428 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 12:41:08,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:08,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513453055] [2022-01-10 12:41:08,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513453055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:08,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:08,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:41:08,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435547744] [2022-01-10 12:41:08,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:08,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 12:41:08,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:08,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 12:41:08,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 12:41:08,430 INFO L87 Difference]: Start difference. First operand 827 states and 1081 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 12:41:09,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:09,601 INFO L93 Difference]: Finished difference Result 1918 states and 2562 transitions. [2022-01-10 12:41:09,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:41:09,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 201 [2022-01-10 12:41:09,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:09,604 INFO L225 Difference]: With dead ends: 1918 [2022-01-10 12:41:09,604 INFO L226 Difference]: Without dead ends: 1391 [2022-01-10 12:41:09,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-01-10 12:41:09,605 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 3412 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:09,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3412 Valid, 1896 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:41:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2022-01-10 12:41:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 767. [2022-01-10 12:41:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 766 states have (on average 1.2963446475195823) internal successors, (993), 766 states have internal predecessors, (993), 0 states have call successors, (0), 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 12:41:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 993 transitions. [2022-01-10 12:41:09,715 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 993 transitions. Word has length 201 [2022-01-10 12:41:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:09,715 INFO L470 AbstractCegarLoop]: Abstraction has 767 states and 993 transitions. [2022-01-10 12:41:09,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 12:41:09,716 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 993 transitions. [2022-01-10 12:41:09,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-10 12:41:09,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:09,716 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:41:09,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 12:41:09,718 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:09,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:09,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1080094020, now seen corresponding path program 1 times [2022-01-10 12:41:09,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:09,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407493951] [2022-01-10 12:41:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:09,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 12:41:10,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:10,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407493951] [2022-01-10 12:41:10,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407493951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:10,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:10,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:41:10,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535822914] [2022-01-10 12:41:10,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:10,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 12:41:10,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:10,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 12:41:10,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-10 12:41:10,032 INFO L87 Difference]: Start difference. First operand 767 states and 993 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 12:41:11,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:11,221 INFO L93 Difference]: Finished difference Result 2470 states and 3282 transitions. [2022-01-10 12:41:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 12:41:11,222 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 201 [2022-01-10 12:41:11,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:11,225 INFO L225 Difference]: With dead ends: 2470 [2022-01-10 12:41:11,225 INFO L226 Difference]: Without dead ends: 2022 [2022-01-10 12:41:11,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:41:11,226 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 3360 mSDsluCounter, 3030 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:11,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3360 Valid, 3312 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:41:11,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-01-10 12:41:11,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 769. [2022-01-10 12:41:11,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 768 states have (on average 1.2955729166666667) internal successors, (995), 768 states have internal predecessors, (995), 0 states have call successors, (0), 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 12:41:11,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 995 transitions. [2022-01-10 12:41:11,351 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 995 transitions. Word has length 201 [2022-01-10 12:41:11,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:11,351 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 995 transitions. [2022-01-10 12:41:11,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 12:41:11,351 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 995 transitions. [2022-01-10 12:41:11,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-10 12:41:11,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:11,352 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:41:11,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 12:41:11,352 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:11,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:11,353 INFO L85 PathProgramCache]: Analyzing trace with hash -831823012, now seen corresponding path program 1 times [2022-01-10 12:41:11,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:11,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886571947] [2022-01-10 12:41:11,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:11,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-10 12:41:11,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:11,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886571947] [2022-01-10 12:41:11,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886571947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:41:11,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:41:11,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:41:11,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168216629] [2022-01-10 12:41:11,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:41:11,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:41:11,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:41:11,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:41:11,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:41:11,436 INFO L87 Difference]: Start difference. First operand 769 states and 995 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 12:41:11,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:41:11,588 INFO L93 Difference]: Finished difference Result 1388 states and 1801 transitions. [2022-01-10 12:41:11,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:41:11,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 202 [2022-01-10 12:41:11,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:41:11,590 INFO L225 Difference]: With dead ends: 1388 [2022-01-10 12:41:11,590 INFO L226 Difference]: Without dead ends: 721 [2022-01-10 12:41:11,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:41:11,591 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 188 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:41:11,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 291 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:41:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-01-10 12:41:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 720. [2022-01-10 12:41:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 1.2336578581363005) internal successors, (887), 719 states have internal predecessors, (887), 0 states have call successors, (0), 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 12:41:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 887 transitions. [2022-01-10 12:41:11,707 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 887 transitions. Word has length 202 [2022-01-10 12:41:11,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:41:11,709 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 887 transitions. [2022-01-10 12:41:11,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 12:41:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 887 transitions. [2022-01-10 12:41:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 12:41:11,710 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:41:11,710 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:41:11,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 12:41:11,710 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2022-01-10 12:41:11,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:41:11,710 INFO L85 PathProgramCache]: Analyzing trace with hash 655919850, now seen corresponding path program 1 times [2022-01-10 12:41:11,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:41:11,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631853460] [2022-01-10 12:41:11,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:11,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:41:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-01-10 12:41:15,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:41:15,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631853460] [2022-01-10 12:41:15,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631853460] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 12:41:15,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656831081] [2022-01-10 12:41:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:41:15,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 12:41:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:41:15,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 12:41:15,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-10 12:41:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:41:15,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-10 12:41:15,542 INFO L286 TraceCheckSpWp]: Computing forward predicates...