/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_SUM.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:41:16,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:41:16,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:41:17,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:41:17,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:41:17,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:41:17,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:41:17,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:41:17,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:41:17,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:41:17,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:41:17,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:41:17,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:41:17,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:41:17,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:41:17,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:41:17,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:41:17,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:41:17,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:41:17,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:41:17,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:41:17,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:41:17,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:41:17,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:41:17,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 07:41:17,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:41:17,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:41:17,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:41:17,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:41:17,107 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:41:17,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:41:17,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:41:17,107 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:41:17,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:41:17,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:41:17,108 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:41:17,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:41:17,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:41:17,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:41:17,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:41:17,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:41:17,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:41:17,110 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:41:17,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:41:17,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:41:17,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:41:17,111 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:41:17,111 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:41:17,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:41:17,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:41:17,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:41:17,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:41:17,316 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:41:17,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c [2022-01-11 07:41:17,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa7b0e24/3072f5d958e04ef182812a4a1498fc06/FLAGdba6ef1fa [2022-01-11 07:41:17,758 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:41:17,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c [2022-01-11 07:41:17,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa7b0e24/3072f5d958e04ef182812a4a1498fc06/FLAGdba6ef1fa [2022-01-11 07:41:18,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa7b0e24/3072f5d958e04ef182812a4a1498fc06 [2022-01-11 07:41:18,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:41:18,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:41:18,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:41:18,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:41:18,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:41:18,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3d3624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18, skipping insertion in model container [2022-01-11 07:41:18,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:41:18,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:41:18,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c[914,927] [2022-01-11 07:41:18,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c[7115,7128] [2022-01-11 07:41:18,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:41:18,509 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:41:18,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c[914,927] [2022-01-11 07:41:18,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c[7115,7128] [2022-01-11 07:41:18,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:41:18,584 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:41:18,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18 WrapperNode [2022-01-11 07:41:18,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:41:18,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:41:18,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:41:18,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:41:18,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,721 INFO L137 Inliner]: procedures = 78, calls = 94, calls flagged for inlining = 89, calls inlined = 297, statements flattened = 4447 [2022-01-11 07:41:18,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:41:18,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:41:18,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:41:18,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:41:18,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:41:18,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:41:18,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:41:18,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:41:18,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (1/1) ... [2022-01-11 07:41:18,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:41:18,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:41:18,840 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) [2022-01-11 07:41:18,858 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 [2022-01-11 07:41:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:41:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:41:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:41:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:41:18,984 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:41:18,985 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:41:20,745 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:41:20,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:41:20,756 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2022-01-11 07:41:20,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:41:20 BoogieIcfgContainer [2022-01-11 07:41:20,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:41:20,759 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:41:20,759 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:41:20,760 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:41:20,762 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:41:20" (1/1) ... [2022-01-11 07:41:21,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:41:21 BasicIcfg [2022-01-11 07:41:21,025 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:41:21,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:41:21,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:41:21,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:41:21,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:41:18" (1/4) ... [2022-01-11 07:41:21,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b7e289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:41:21, skipping insertion in model container [2022-01-11 07:41:21,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:41:18" (2/4) ... [2022-01-11 07:41:21,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b7e289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:41:21, skipping insertion in model container [2022-01-11 07:41:21,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:41:20" (3/4) ... [2022-01-11 07:41:21,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b7e289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:41:21, skipping insertion in model container [2022-01-11 07:41:21,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:41:21" (4/4) ... [2022-01-11 07:41:21,030 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.12.cil-1.cTransformedIcfg [2022-01-11 07:41:21,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:41:21,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-11 07:41:21,062 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:41:21,066 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 [2022-01-11 07:41:21,066 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-11 07:41:21,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 1903 states, 1898 states have (on average 1.5047418335089568) internal successors, (2856), 1902 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:21,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 07:41:21,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:21,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:21,095 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash -100624912, now seen corresponding path program 1 times [2022-01-11 07:41:21,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:21,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304928295] [2022-01-11 07:41:21,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:21,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:21,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:21,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304928295] [2022-01-11 07:41:21,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304928295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:21,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:21,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:21,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264012340] [2022-01-11 07:41:21,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:21,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:21,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:21,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:21,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:21,308 INFO L87 Difference]: Start difference. First operand has 1903 states, 1898 states have (on average 1.5047418335089568) internal successors, (2856), 1902 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:21,500 INFO L93 Difference]: Finished difference Result 3632 states and 5427 transitions. [2022-01-11 07:41:21,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:21,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-11 07:41:21,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:21,526 INFO L225 Difference]: With dead ends: 3632 [2022-01-11 07:41:21,526 INFO L226 Difference]: Without dead ends: 1892 [2022-01-11 07:41:21,533 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 [2022-01-11 07:41:21,535 INFO L933 BasicCegarLoop]: 2808 mSDtfsCounter, 141 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:21,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 5472 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2022-01-11 07:41:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1892. [2022-01-11 07:41:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1888 states have (on average 1.4835805084745763) internal successors, (2801), 1891 states have internal predecessors, (2801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 2801 transitions. [2022-01-11 07:41:21,604 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 2801 transitions. Word has length 44 [2022-01-11 07:41:21,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:21,604 INFO L470 AbstractCegarLoop]: Abstraction has 1892 states and 2801 transitions. [2022-01-11 07:41:21,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:21,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 2801 transitions. [2022-01-11 07:41:21,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 07:41:21,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:21,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:21,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:41:21,606 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:21,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:21,607 INFO L85 PathProgramCache]: Analyzing trace with hash -430390673, now seen corresponding path program 1 times [2022-01-11 07:41:21,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:21,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939954663] [2022-01-11 07:41:21,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:21,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:21,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:21,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939954663] [2022-01-11 07:41:21,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939954663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:21,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:21,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:21,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234464413] [2022-01-11 07:41:21,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:21,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:21,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:21,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:21,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:21,676 INFO L87 Difference]: Start difference. First operand 1892 states and 2801 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:21,768 INFO L93 Difference]: Finished difference Result 2072 states and 3060 transitions. [2022-01-11 07:41:21,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:21,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-11 07:41:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:21,774 INFO L225 Difference]: With dead ends: 2072 [2022-01-11 07:41:21,783 INFO L226 Difference]: Without dead ends: 1986 [2022-01-11 07:41:21,785 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 [2022-01-11 07:41:21,786 INFO L933 BasicCegarLoop]: 2797 mSDtfsCounter, 118 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 5564 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:21,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 5564 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:21,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2022-01-11 07:41:21,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1982. [2022-01-11 07:41:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1982 states, 1978 states have (on average 1.4772497472194135) internal successors, (2922), 1981 states have internal predecessors, (2922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:21,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 2922 transitions. [2022-01-11 07:41:21,843 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 2922 transitions. Word has length 44 [2022-01-11 07:41:21,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:21,843 INFO L470 AbstractCegarLoop]: Abstraction has 1982 states and 2922 transitions. [2022-01-11 07:41:21,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:21,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 2922 transitions. [2022-01-11 07:41:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 07:41:21,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:21,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:21,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:41:21,845 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:21,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:21,846 INFO L85 PathProgramCache]: Analyzing trace with hash -69649423, now seen corresponding path program 1 times [2022-01-11 07:41:21,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:21,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376467245] [2022-01-11 07:41:21,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:21,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:21,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:21,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376467245] [2022-01-11 07:41:21,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376467245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:21,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:21,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:21,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708591408] [2022-01-11 07:41:21,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:21,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:21,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:21,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:21,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:21,990 INFO L87 Difference]: Start difference. First operand 1982 states and 2922 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:22,074 INFO L93 Difference]: Finished difference Result 2268 states and 3318 transitions. [2022-01-11 07:41:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-11 07:41:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:22,080 INFO L225 Difference]: With dead ends: 2268 [2022-01-11 07:41:22,080 INFO L226 Difference]: Without dead ends: 2138 [2022-01-11 07:41:22,084 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 [2022-01-11 07:41:22,086 INFO L933 BasicCegarLoop]: 2798 mSDtfsCounter, 2761 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2761 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:22,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2761 Valid, 2915 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:22,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2022-01-11 07:41:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2134. [2022-01-11 07:41:22,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 2130 states have (on average 1.467605633802817) internal successors, (3126), 2133 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3126 transitions. [2022-01-11 07:41:22,136 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3126 transitions. Word has length 44 [2022-01-11 07:41:22,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:22,136 INFO L470 AbstractCegarLoop]: Abstraction has 2134 states and 3126 transitions. [2022-01-11 07:41:22,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3126 transitions. [2022-01-11 07:41:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 07:41:22,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:22,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:22,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:41:22,143 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:22,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:22,144 INFO L85 PathProgramCache]: Analyzing trace with hash 730929652, now seen corresponding path program 1 times [2022-01-11 07:41:22,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:22,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504668506] [2022-01-11 07:41:22,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:22,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:22,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:22,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:22,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504668506] [2022-01-11 07:41:22,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504668506] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:22,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:22,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:22,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179621596] [2022-01-11 07:41:22,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:22,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:22,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:22,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:22,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:22,246 INFO L87 Difference]: Start difference. First operand 2134 states and 3126 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:22,325 INFO L93 Difference]: Finished difference Result 2682 states and 3882 transitions. [2022-01-11 07:41:22,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:22,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-11 07:41:22,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:22,332 INFO L225 Difference]: With dead ends: 2682 [2022-01-11 07:41:22,332 INFO L226 Difference]: Without dead ends: 2347 [2022-01-11 07:41:22,335 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 [2022-01-11 07:41:22,340 INFO L933 BasicCegarLoop]: 2793 mSDtfsCounter, 93 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 5531 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:22,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 5531 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2022-01-11 07:41:22,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 2333. [2022-01-11 07:41:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 2329 states have (on average 1.4572778016316015) internal successors, (3394), 2332 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3394 transitions. [2022-01-11 07:41:22,397 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3394 transitions. Word has length 45 [2022-01-11 07:41:22,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:22,399 INFO L470 AbstractCegarLoop]: Abstraction has 2333 states and 3394 transitions. [2022-01-11 07:41:22,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3394 transitions. [2022-01-11 07:41:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 07:41:22,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:22,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:22,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:41:22,400 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash 760512115, now seen corresponding path program 1 times [2022-01-11 07:41:22,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:22,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651023141] [2022-01-11 07:41:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:22,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:22,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:22,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651023141] [2022-01-11 07:41:22,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651023141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:22,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:22,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:22,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979450727] [2022-01-11 07:41:22,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:22,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:22,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:22,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:22,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:22,454 INFO L87 Difference]: Start difference. First operand 2333 states and 3394 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:22,536 INFO L93 Difference]: Finished difference Result 3221 states and 4606 transitions. [2022-01-11 07:41:22,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:22,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-11 07:41:22,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:22,543 INFO L225 Difference]: With dead ends: 3221 [2022-01-11 07:41:22,544 INFO L226 Difference]: Without dead ends: 2745 [2022-01-11 07:41:22,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:22,546 INFO L933 BasicCegarLoop]: 2793 mSDtfsCounter, 2749 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2749 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:22,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2749 Valid, 2882 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:22,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2022-01-11 07:41:22,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2713. [2022-01-11 07:41:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2713 states, 2709 states have (on average 1.4374307862679956) internal successors, (3894), 2712 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2713 states to 2713 states and 3894 transitions. [2022-01-11 07:41:22,609 INFO L78 Accepts]: Start accepts. Automaton has 2713 states and 3894 transitions. Word has length 45 [2022-01-11 07:41:22,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:22,609 INFO L470 AbstractCegarLoop]: Abstraction has 2713 states and 3894 transitions. [2022-01-11 07:41:22,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2713 states and 3894 transitions. [2022-01-11 07:41:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 07:41:22,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:22,610 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] [2022-01-11 07:41:22,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:41:22,611 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:22,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1591227216, now seen corresponding path program 1 times [2022-01-11 07:41:22,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:22,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367951765] [2022-01-11 07:41:22,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:22,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:22,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:22,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367951765] [2022-01-11 07:41:22,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367951765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:22,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:22,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:22,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340835774] [2022-01-11 07:41:22,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:22,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:22,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:22,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:22,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:22,647 INFO L87 Difference]: Start difference. First operand 2713 states and 3894 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:22,720 INFO L93 Difference]: Finished difference Result 3916 states and 5507 transitions. [2022-01-11 07:41:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 07:41:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:22,729 INFO L225 Difference]: With dead ends: 3916 [2022-01-11 07:41:22,729 INFO L226 Difference]: Without dead ends: 3032 [2022-01-11 07:41:22,730 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 [2022-01-11 07:41:22,732 INFO L933 BasicCegarLoop]: 2797 mSDtfsCounter, 2746 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:22,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2746 Valid, 2886 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:22,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-01-11 07:41:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 3010. [2022-01-11 07:41:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3010 states, 3006 states have (on average 1.423486360612109) internal successors, (4279), 3009 states have internal predecessors, (4279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3010 states to 3010 states and 4279 transitions. [2022-01-11 07:41:22,806 INFO L78 Accepts]: Start accepts. Automaton has 3010 states and 4279 transitions. Word has length 51 [2022-01-11 07:41:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:22,806 INFO L470 AbstractCegarLoop]: Abstraction has 3010 states and 4279 transitions. [2022-01-11 07:41:22,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3010 states and 4279 transitions. [2022-01-11 07:41:22,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 07:41:22,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:22,807 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:22,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:41:22,808 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:22,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:22,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2047762359, now seen corresponding path program 1 times [2022-01-11 07:41:22,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:22,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803455703] [2022-01-11 07:41:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:22,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:41:22,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:22,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803455703] [2022-01-11 07:41:22,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803455703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:22,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:22,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:41:22,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391988037] [2022-01-11 07:41:22,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:22,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:41:22,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:22,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:41:22,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:41:22,896 INFO L87 Difference]: Start difference. First operand 3010 states and 4279 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:23,058 INFO L93 Difference]: Finished difference Result 4636 states and 6483 transitions. [2022-01-11 07:41:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:41:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 07:41:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:23,069 INFO L225 Difference]: With dead ends: 4636 [2022-01-11 07:41:23,069 INFO L226 Difference]: Without dead ends: 3685 [2022-01-11 07:41:23,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:41:23,072 INFO L933 BasicCegarLoop]: 2786 mSDtfsCounter, 395 mSDsluCounter, 8467 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 11253 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 [2022-01-11 07:41:23,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 11253 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3685 states. [2022-01-11 07:41:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3685 to 3034. [2022-01-11 07:41:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3030 states have (on average 1.4141914191419143) internal successors, (4285), 3033 states have internal predecessors, (4285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4285 transitions. [2022-01-11 07:41:23,175 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4285 transitions. Word has length 52 [2022-01-11 07:41:23,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:23,176 INFO L470 AbstractCegarLoop]: Abstraction has 3034 states and 4285 transitions. [2022-01-11 07:41:23,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4285 transitions. [2022-01-11 07:41:23,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 07:41:23,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:23,177 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:23,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:41:23,177 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:23,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash -296904682, now seen corresponding path program 1 times [2022-01-11 07:41:23,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:23,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398036673] [2022-01-11 07:41:23,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:23,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:23,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:41:23,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:23,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398036673] [2022-01-11 07:41:23,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398036673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:23,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:23,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:41:23,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328942729] [2022-01-11 07:41:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:23,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:41:23,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:41:23,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:41:23,233 INFO L87 Difference]: Start difference. First operand 3034 states and 4285 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:23,398 INFO L93 Difference]: Finished difference Result 4789 states and 6634 transitions. [2022-01-11 07:41:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:41:23,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 07:41:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:23,407 INFO L225 Difference]: With dead ends: 4789 [2022-01-11 07:41:23,407 INFO L226 Difference]: Without dead ends: 3624 [2022-01-11 07:41:23,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:41:23,409 INFO L933 BasicCegarLoop]: 2785 mSDtfsCounter, 354 mSDsluCounter, 8484 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 11269 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 [2022-01-11 07:41:23,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 11269 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2022-01-11 07:41:23,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3052. [2022-01-11 07:41:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3052 states, 3048 states have (on average 1.4051837270341208) internal successors, (4283), 3051 states have internal predecessors, (4283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 4283 transitions. [2022-01-11 07:41:23,507 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 4283 transitions. Word has length 52 [2022-01-11 07:41:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:23,507 INFO L470 AbstractCegarLoop]: Abstraction has 3052 states and 4283 transitions. [2022-01-11 07:41:23,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 4283 transitions. [2022-01-11 07:41:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 07:41:23,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:23,509 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:23,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:41:23,509 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:23,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:23,509 INFO L85 PathProgramCache]: Analyzing trace with hash -285588555, now seen corresponding path program 1 times [2022-01-11 07:41:23,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:23,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344501739] [2022-01-11 07:41:23,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:23,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:23,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:23,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344501739] [2022-01-11 07:41:23,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344501739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:23,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:23,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 07:41:23,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348988685] [2022-01-11 07:41:23,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:23,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 07:41:23,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:23,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 07:41:23,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 07:41:23,596 INFO L87 Difference]: Start difference. First operand 3052 states and 4283 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:23,805 INFO L93 Difference]: Finished difference Result 3284 states and 4583 transitions. [2022-01-11 07:41:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 07:41:23,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 07:41:23,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:23,815 INFO L225 Difference]: With dead ends: 3284 [2022-01-11 07:41:23,815 INFO L226 Difference]: Without dead ends: 3282 [2022-01-11 07:41:23,816 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 [2022-01-11 07:41:23,817 INFO L933 BasicCegarLoop]: 2794 mSDtfsCounter, 5631 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5631 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:23,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5631 Valid, 2882 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:23,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2022-01-11 07:41:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 3050. [2022-01-11 07:41:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3050 states, 3047 states have (on average 1.4026911716442403) internal successors, (4274), 3049 states have internal predecessors, (4274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 4274 transitions. [2022-01-11 07:41:23,961 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 4274 transitions. Word has length 52 [2022-01-11 07:41:23,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:23,962 INFO L470 AbstractCegarLoop]: Abstraction has 3050 states and 4274 transitions. [2022-01-11 07:41:23,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 4274 transitions. [2022-01-11 07:41:23,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 07:41:23,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:23,963 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:23,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:41:23,963 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:23,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:23,964 INFO L85 PathProgramCache]: Analyzing trace with hash -263304435, now seen corresponding path program 1 times [2022-01-11 07:41:23,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:23,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685763922] [2022-01-11 07:41:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:23,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:24,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:24,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685763922] [2022-01-11 07:41:24,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685763922] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 07:41:24,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785441475] [2022-01-11 07:41:24,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:24,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 07:41:24,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:41:24,094 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) [2022-01-11 07:41:24,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 07:41:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:24,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-11 07:41:24,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 07:41:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:24,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 07:41:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:24,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785441475] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 07:41:24,756 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 07:41:24,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-11 07:41:24,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388845620] [2022-01-11 07:41:24,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 07:41:24,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 07:41:24,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:24,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 07:41:24,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 07:41:24,757 INFO L87 Difference]: Start difference. First operand 3050 states and 4274 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:25,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:25,187 INFO L93 Difference]: Finished difference Result 5407 states and 7374 transitions. [2022-01-11 07:41:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 07:41:25,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 07:41:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:25,200 INFO L225 Difference]: With dead ends: 5407 [2022-01-11 07:41:25,201 INFO L226 Difference]: Without dead ends: 5405 [2022-01-11 07:41:25,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 07:41:25,202 INFO L933 BasicCegarLoop]: 2945 mSDtfsCounter, 8642 mSDsluCounter, 11989 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8642 SdHoareTripleChecker+Valid, 14934 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:25,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8642 Valid, 14934 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:25,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2022-01-11 07:41:25,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 4025. [2022-01-11 07:41:25,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 4022 states have (on average 1.3811536548980607) internal successors, (5555), 4024 states have internal predecessors, (5555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:25,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 5555 transitions. [2022-01-11 07:41:25,631 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 5555 transitions. Word has length 53 [2022-01-11 07:41:25,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:25,631 INFO L470 AbstractCegarLoop]: Abstraction has 4025 states and 5555 transitions. [2022-01-11 07:41:25,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:25,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 5555 transitions. [2022-01-11 07:41:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 07:41:25,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:25,633 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:25,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 07:41:25,847 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,SelfDestructingSolverStorable9 [2022-01-11 07:41:25,848 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:25,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:25,848 INFO L85 PathProgramCache]: Analyzing trace with hash 190928261, now seen corresponding path program 2 times [2022-01-11 07:41:25,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:25,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321234098] [2022-01-11 07:41:25,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:25,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:25,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:25,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321234098] [2022-01-11 07:41:25,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321234098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:25,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:25,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:25,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385391597] [2022-01-11 07:41:25,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:25,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:25,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:25,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:25,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:25,881 INFO L87 Difference]: Start difference. First operand 4025 states and 5555 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:26,054 INFO L93 Difference]: Finished difference Result 5119 states and 7000 transitions. [2022-01-11 07:41:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:26,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 07:41:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:26,060 INFO L225 Difference]: With dead ends: 5119 [2022-01-11 07:41:26,060 INFO L226 Difference]: Without dead ends: 3379 [2022-01-11 07:41:26,062 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 [2022-01-11 07:41:26,062 INFO L933 BasicCegarLoop]: 2857 mSDtfsCounter, 2741 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2741 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:26,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2741 Valid, 2972 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:26,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2022-01-11 07:41:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3363. [2022-01-11 07:41:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 3360 states have (on average 1.3842261904761906) internal successors, (4651), 3362 states have internal predecessors, (4651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4651 transitions. [2022-01-11 07:41:26,313 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4651 transitions. Word has length 56 [2022-01-11 07:41:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:26,313 INFO L470 AbstractCegarLoop]: Abstraction has 3363 states and 4651 transitions. [2022-01-11 07:41:26,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4651 transitions. [2022-01-11 07:41:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 07:41:26,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:26,315 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:26,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:41:26,315 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:26,315 INFO L85 PathProgramCache]: Analyzing trace with hash -817756223, now seen corresponding path program 1 times [2022-01-11 07:41:26,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:26,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502945615] [2022-01-11 07:41:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:26,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:26,348 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:26,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:26,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502945615] [2022-01-11 07:41:26,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502945615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:26,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:26,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:26,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250432144] [2022-01-11 07:41:26,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:26,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:26,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:26,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:26,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:26,350 INFO L87 Difference]: Start difference. First operand 3363 states and 4651 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:26,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:26,602 INFO L93 Difference]: Finished difference Result 4654 states and 6319 transitions. [2022-01-11 07:41:26,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:26,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 07:41:26,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:26,608 INFO L225 Difference]: With dead ends: 4654 [2022-01-11 07:41:26,608 INFO L226 Difference]: Without dead ends: 3748 [2022-01-11 07:41:26,610 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 [2022-01-11 07:41:26,611 INFO L933 BasicCegarLoop]: 2857 mSDtfsCounter, 66 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 5634 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 [2022-01-11 07:41:26,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 5634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2022-01-11 07:41:26,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3748. [2022-01-11 07:41:26,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 3745 states have (on average 1.3655540720961281) internal successors, (5114), 3747 states have internal predecessors, (5114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5114 transitions. [2022-01-11 07:41:26,809 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5114 transitions. Word has length 60 [2022-01-11 07:41:26,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:26,809 INFO L470 AbstractCegarLoop]: Abstraction has 3748 states and 5114 transitions. [2022-01-11 07:41:26,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5114 transitions. [2022-01-11 07:41:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-11 07:41:26,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:26,814 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:26,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:41:26,815 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:26,815 INFO L85 PathProgramCache]: Analyzing trace with hash -234996676, now seen corresponding path program 1 times [2022-01-11 07:41:26,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:26,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240592252] [2022-01-11 07:41:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:26,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:41:26,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:26,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240592252] [2022-01-11 07:41:26,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240592252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:26,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:26,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:26,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269100859] [2022-01-11 07:41:26,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:26,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:26,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:26,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:26,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:26,850 INFO L87 Difference]: Start difference. First operand 3748 states and 5114 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:27,035 INFO L93 Difference]: Finished difference Result 5611 states and 7466 transitions. [2022-01-11 07:41:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:27,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-11 07:41:27,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:27,041 INFO L225 Difference]: With dead ends: 5611 [2022-01-11 07:41:27,041 INFO L226 Difference]: Without dead ends: 3748 [2022-01-11 07:41:27,043 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 [2022-01-11 07:41:27,044 INFO L933 BasicCegarLoop]: 2790 mSDtfsCounter, 2733 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:27,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2733 Valid, 2874 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:27,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2022-01-11 07:41:27,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3748. [2022-01-11 07:41:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 3745 states have (on average 1.3548731642189586) internal successors, (5074), 3747 states have internal predecessors, (5074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:27,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5074 transitions. [2022-01-11 07:41:27,241 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5074 transitions. Word has length 68 [2022-01-11 07:41:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:27,241 INFO L470 AbstractCegarLoop]: Abstraction has 3748 states and 5074 transitions. [2022-01-11 07:41:27,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:27,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5074 transitions. [2022-01-11 07:41:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 07:41:27,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:27,243 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:27,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:41:27,243 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:27,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:27,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1913826514, now seen corresponding path program 1 times [2022-01-11 07:41:27,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:27,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491490764] [2022-01-11 07:41:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:27,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:41:27,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:27,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491490764] [2022-01-11 07:41:27,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491490764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:27,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:27,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:27,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932921141] [2022-01-11 07:41:27,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:27,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:27,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:27,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:27,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:27,282 INFO L87 Difference]: Start difference. First operand 3748 states and 5074 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:27,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:27,437 INFO L93 Difference]: Finished difference Result 5047 states and 6708 transitions. [2022-01-11 07:41:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:27,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-01-11 07:41:27,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:27,442 INFO L225 Difference]: With dead ends: 5047 [2022-01-11 07:41:27,442 INFO L226 Difference]: Without dead ends: 3422 [2022-01-11 07:41:27,444 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 [2022-01-11 07:41:27,445 INFO L933 BasicCegarLoop]: 2873 mSDtfsCounter, 99 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:27,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 5645 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:27,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2022-01-11 07:41:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 3420. [2022-01-11 07:41:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3420 states, 3417 states have (on average 1.3579163008486976) internal successors, (4640), 3419 states have internal predecessors, (4640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 4640 transitions. [2022-01-11 07:41:27,621 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 4640 transitions. Word has length 69 [2022-01-11 07:41:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:27,621 INFO L470 AbstractCegarLoop]: Abstraction has 3420 states and 4640 transitions. [2022-01-11 07:41:27,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 4640 transitions. [2022-01-11 07:41:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 07:41:27,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:27,623 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:27,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:41:27,623 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:27,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1540798769, now seen corresponding path program 1 times [2022-01-11 07:41:27,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:27,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880195431] [2022-01-11 07:41:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:27,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-11 07:41:27,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:27,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880195431] [2022-01-11 07:41:27,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880195431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:27,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:27,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:27,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671722293] [2022-01-11 07:41:27,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:27,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:27,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:27,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:27,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:27,653 INFO L87 Difference]: Start difference. First operand 3420 states and 4640 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:27,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:27,863 INFO L93 Difference]: Finished difference Result 5064 states and 6744 transitions. [2022-01-11 07:41:27,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:27,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-01-11 07:41:27,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:27,869 INFO L225 Difference]: With dead ends: 5064 [2022-01-11 07:41:27,869 INFO L226 Difference]: Without dead ends: 3696 [2022-01-11 07:41:27,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:27,873 INFO L933 BasicCegarLoop]: 2784 mSDtfsCounter, 2764 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2764 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:27,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2764 Valid, 2872 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2022-01-11 07:41:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3657. [2022-01-11 07:41:28,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 3654 states have (on average 1.3623426382047072) internal successors, (4978), 3656 states have internal predecessors, (4978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 4978 transitions. [2022-01-11 07:41:28,144 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 4978 transitions. Word has length 100 [2022-01-11 07:41:28,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:28,145 INFO L470 AbstractCegarLoop]: Abstraction has 3657 states and 4978 transitions. [2022-01-11 07:41:28,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 4978 transitions. [2022-01-11 07:41:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:41:28,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:28,147 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:28,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:41:28,147 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash -389879963, now seen corresponding path program 1 times [2022-01-11 07:41:28,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:28,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594263788] [2022-01-11 07:41:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:28,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 07:41:28,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:28,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594263788] [2022-01-11 07:41:28,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594263788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:28,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:28,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:28,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504220021] [2022-01-11 07:41:28,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:28,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:28,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:28,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:28,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:28,206 INFO L87 Difference]: Start difference. First operand 3657 states and 4978 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:28,446 INFO L93 Difference]: Finished difference Result 5266 states and 7023 transitions. [2022-01-11 07:41:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-11 07:41:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:28,453 INFO L225 Difference]: With dead ends: 5266 [2022-01-11 07:41:28,453 INFO L226 Difference]: Without dead ends: 3665 [2022-01-11 07:41:28,455 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 [2022-01-11 07:41:28,456 INFO L933 BasicCegarLoop]: 2772 mSDtfsCounter, 69 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 5434 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:28,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 5434 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2022-01-11 07:41:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3665. [2022-01-11 07:41:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3665 states, 3662 states have (on average 1.3544511196067723) internal successors, (4960), 3664 states have internal predecessors, (4960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 4960 transitions. [2022-01-11 07:41:28,649 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 4960 transitions. Word has length 110 [2022-01-11 07:41:28,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:28,649 INFO L470 AbstractCegarLoop]: Abstraction has 3665 states and 4960 transitions. [2022-01-11 07:41:28,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 4960 transitions. [2022-01-11 07:41:28,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:41:28,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:28,651 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:28,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:41:28,651 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:28,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:28,652 INFO L85 PathProgramCache]: Analyzing trace with hash -630420092, now seen corresponding path program 1 times [2022-01-11 07:41:28,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:28,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237862296] [2022-01-11 07:41:28,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:28,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 07:41:28,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:28,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237862296] [2022-01-11 07:41:28,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237862296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:28,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:28,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:28,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311259745] [2022-01-11 07:41:28,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:28,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:28,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:28,688 INFO L87 Difference]: Start difference. First operand 3665 states and 4960 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:28,840 INFO L93 Difference]: Finished difference Result 4428 states and 5918 transitions. [2022-01-11 07:41:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:28,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-11 07:41:28,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:28,844 INFO L225 Difference]: With dead ends: 4428 [2022-01-11 07:41:28,845 INFO L226 Difference]: Without dead ends: 2819 [2022-01-11 07:41:28,846 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 [2022-01-11 07:41:28,846 INFO L933 BasicCegarLoop]: 2775 mSDtfsCounter, 2737 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:28,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2737 Valid, 2796 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:28,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2022-01-11 07:41:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2819. [2022-01-11 07:41:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2816 states have (on average 1.3767755681818181) internal successors, (3877), 2818 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3877 transitions. [2022-01-11 07:41:28,964 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3877 transitions. Word has length 110 [2022-01-11 07:41:28,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:28,964 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3877 transitions. [2022-01-11 07:41:28,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:28,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3877 transitions. [2022-01-11 07:41:28,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-11 07:41:28,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:28,966 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:28,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:41:28,967 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:28,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1758396851, now seen corresponding path program 1 times [2022-01-11 07:41:28,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:28,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282366730] [2022-01-11 07:41:28,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:28,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-11 07:41:29,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:29,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282366730] [2022-01-11 07:41:29,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282366730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:29,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:29,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:29,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825504594] [2022-01-11 07:41:29,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:29,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:29,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:29,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:29,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:29,028 INFO L87 Difference]: Start difference. First operand 2819 states and 3877 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:29,160 INFO L93 Difference]: Finished difference Result 3591 states and 4821 transitions. [2022-01-11 07:41:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:29,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-11 07:41:29,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:29,166 INFO L225 Difference]: With dead ends: 3591 [2022-01-11 07:41:29,166 INFO L226 Difference]: Without dead ends: 2828 [2022-01-11 07:41:29,168 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 [2022-01-11 07:41:29,168 INFO L933 BasicCegarLoop]: 2774 mSDtfsCounter, 60 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 5438 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:29,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 5438 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2022-01-11 07:41:29,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2022-01-11 07:41:29,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2828 states, 2825 states have (on average 1.3706194690265487) internal successors, (3872), 2827 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3872 transitions. [2022-01-11 07:41:29,293 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3872 transitions. Word has length 113 [2022-01-11 07:41:29,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:29,293 INFO L470 AbstractCegarLoop]: Abstraction has 2828 states and 3872 transitions. [2022-01-11 07:41:29,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3872 transitions. [2022-01-11 07:41:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-11 07:41:29,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:29,294 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:29,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:41:29,295 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1309700212, now seen corresponding path program 1 times [2022-01-11 07:41:29,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:29,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186042662] [2022-01-11 07:41:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:29,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-11 07:41:29,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:29,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186042662] [2022-01-11 07:41:29,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186042662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:29,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:29,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:29,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589073328] [2022-01-11 07:41:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:29,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:29,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:29,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:29,336 INFO L87 Difference]: Start difference. First operand 2828 states and 3872 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:29,463 INFO L93 Difference]: Finished difference Result 3223 states and 4335 transitions. [2022-01-11 07:41:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:29,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-11 07:41:29,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:29,465 INFO L225 Difference]: With dead ends: 3223 [2022-01-11 07:41:29,466 INFO L226 Difference]: Without dead ends: 1795 [2022-01-11 07:41:29,466 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 [2022-01-11 07:41:29,467 INFO L933 BasicCegarLoop]: 2771 mSDtfsCounter, 2722 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:29,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2722 Valid, 2789 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:29,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2022-01-11 07:41:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1795. [2022-01-11 07:41:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.483547127718907) internal successors, (2660), 1794 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2660 transitions. [2022-01-11 07:41:29,510 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2660 transitions. Word has length 113 [2022-01-11 07:41:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:29,511 INFO L470 AbstractCegarLoop]: Abstraction has 1795 states and 2660 transitions. [2022-01-11 07:41:29,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2660 transitions. [2022-01-11 07:41:29,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:29,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:29,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:29,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:41:29,513 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:29,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:29,514 INFO L85 PathProgramCache]: Analyzing trace with hash 432881105, now seen corresponding path program 1 times [2022-01-11 07:41:29,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:29,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402188698] [2022-01-11 07:41:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:29,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:29,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:29,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402188698] [2022-01-11 07:41:29,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402188698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:29,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:29,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:29,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441369355] [2022-01-11 07:41:29,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:29,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:29,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:29,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:29,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:29,552 INFO L87 Difference]: Start difference. First operand 1795 states and 2660 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:29,611 INFO L93 Difference]: Finished difference Result 3574 states and 5293 transitions. [2022-01-11 07:41:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:29,614 INFO L225 Difference]: With dead ends: 3574 [2022-01-11 07:41:29,614 INFO L226 Difference]: Without dead ends: 1795 [2022-01-11 07:41:29,615 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 [2022-01-11 07:41:29,616 INFO L933 BasicCegarLoop]: 2658 mSDtfsCounter, 2644 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:29,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2644 Valid, 2659 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2022-01-11 07:41:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1795. [2022-01-11 07:41:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.482989403234802) internal successors, (2659), 1794 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2659 transitions. [2022-01-11 07:41:29,661 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2659 transitions. Word has length 165 [2022-01-11 07:41:29,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:29,662 INFO L470 AbstractCegarLoop]: Abstraction has 1795 states and 2659 transitions. [2022-01-11 07:41:29,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2659 transitions. [2022-01-11 07:41:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:29,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:29,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:29,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:41:29,663 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:29,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1253018830, now seen corresponding path program 1 times [2022-01-11 07:41:29,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:29,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830801808] [2022-01-11 07:41:29,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:29,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:29,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:29,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:29,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830801808] [2022-01-11 07:41:29,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830801808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:29,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:29,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:29,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179822794] [2022-01-11 07:41:29,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:29,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:29,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:29,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:29,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:29,706 INFO L87 Difference]: Start difference. First operand 1795 states and 2659 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:29,824 INFO L93 Difference]: Finished difference Result 5108 states and 7544 transitions. [2022-01-11 07:41:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:29,831 INFO L225 Difference]: With dead ends: 5108 [2022-01-11 07:41:29,831 INFO L226 Difference]: Without dead ends: 3333 [2022-01-11 07:41:29,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:29,834 INFO L933 BasicCegarLoop]: 2653 mSDtfsCounter, 2502 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 5038 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:29,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2502 Valid, 5038 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2022-01-11 07:41:29,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3329. [2022-01-11 07:41:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.476405169822663) internal successors, (4912), 3328 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4912 transitions. [2022-01-11 07:41:29,950 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4912 transitions. Word has length 165 [2022-01-11 07:41:29,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:29,950 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4912 transitions. [2022-01-11 07:41:29,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4912 transitions. [2022-01-11 07:41:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:29,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:29,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:29,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:41:29,952 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash 444698706, now seen corresponding path program 1 times [2022-01-11 07:41:29,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:29,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995001261] [2022-01-11 07:41:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:29,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:29,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:29,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995001261] [2022-01-11 07:41:29,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995001261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:29,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:29,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:29,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669375982] [2022-01-11 07:41:29,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:29,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:29,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:29,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:29,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:29,993 INFO L87 Difference]: Start difference. First operand 3329 states and 4912 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:30,139 INFO L93 Difference]: Finished difference Result 6637 states and 9790 transitions. [2022-01-11 07:41:30,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:30,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:30,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:30,145 INFO L225 Difference]: With dead ends: 6637 [2022-01-11 07:41:30,145 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:30,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:30,150 INFO L933 BasicCegarLoop]: 2647 mSDtfsCounter, 2632 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2632 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:30,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2632 Valid, 2647 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:30,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.47400060114217) internal successors, (4904), 3328 states have internal predecessors, (4904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4904 transitions. [2022-01-11 07:41:30,254 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4904 transitions. Word has length 165 [2022-01-11 07:41:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:30,254 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4904 transitions. [2022-01-11 07:41:30,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4904 transitions. [2022-01-11 07:41:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:30,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:30,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:30,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:41:30,255 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:30,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:30,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1440198862, now seen corresponding path program 1 times [2022-01-11 07:41:30,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:30,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795674386] [2022-01-11 07:41:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:30,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:30,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:30,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795674386] [2022-01-11 07:41:30,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795674386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:30,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:30,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:30,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683956747] [2022-01-11 07:41:30,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:30,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:30,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:30,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:30,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:30,291 INFO L87 Difference]: Start difference. First operand 3329 states and 4904 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:30,404 INFO L93 Difference]: Finished difference Result 6636 states and 9773 transitions. [2022-01-11 07:41:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:30,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:30,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:30,409 INFO L225 Difference]: With dead ends: 6636 [2022-01-11 07:41:30,409 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:30,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:30,412 INFO L933 BasicCegarLoop]: 2642 mSDtfsCounter, 2626 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:30,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2626 Valid, 2642 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:30,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:30,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4715960324616773) internal successors, (4896), 3328 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4896 transitions. [2022-01-11 07:41:30,518 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4896 transitions. Word has length 165 [2022-01-11 07:41:30,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:30,518 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4896 transitions. [2022-01-11 07:41:30,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4896 transitions. [2022-01-11 07:41:30,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:30,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:30,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:30,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:41:30,519 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:30,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:30,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2101228626, now seen corresponding path program 1 times [2022-01-11 07:41:30,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:30,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437544108] [2022-01-11 07:41:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:30,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:30,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:30,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:30,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437544108] [2022-01-11 07:41:30,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437544108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:30,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:30,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:30,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212397866] [2022-01-11 07:41:30,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:30,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:30,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:30,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:30,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:30,558 INFO L87 Difference]: Start difference. First operand 3329 states and 4896 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:30,677 INFO L93 Difference]: Finished difference Result 6635 states and 9756 transitions. [2022-01-11 07:41:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:30,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:30,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:30,682 INFO L225 Difference]: With dead ends: 6635 [2022-01-11 07:41:30,682 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:30,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:30,686 INFO L933 BasicCegarLoop]: 2637 mSDtfsCounter, 2620 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2620 SdHoareTripleChecker+Valid, 2637 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:30,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2620 Valid, 2637 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4691914637811843) internal successors, (4888), 3328 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4888 transitions. [2022-01-11 07:41:30,857 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4888 transitions. Word has length 165 [2022-01-11 07:41:30,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:30,858 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4888 transitions. [2022-01-11 07:41:30,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:30,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4888 transitions. [2022-01-11 07:41:30,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:30,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:30,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:30,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:41:30,859 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:30,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1799826226, now seen corresponding path program 1 times [2022-01-11 07:41:30,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:30,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391093595] [2022-01-11 07:41:30,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:30,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:30,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:30,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:30,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391093595] [2022-01-11 07:41:30,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391093595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:30,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:30,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:30,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823266060] [2022-01-11 07:41:30,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:30,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:30,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:30,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:30,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:30,898 INFO L87 Difference]: Start difference. First operand 3329 states and 4888 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:31,059 INFO L93 Difference]: Finished difference Result 6634 states and 9739 transitions. [2022-01-11 07:41:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:31,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:31,065 INFO L225 Difference]: With dead ends: 6634 [2022-01-11 07:41:31,065 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:31,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:31,070 INFO L933 BasicCegarLoop]: 2632 mSDtfsCounter, 2614 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:31,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2614 Valid, 2632 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:31,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:31,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:31,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4667868951006913) internal successors, (4880), 3328 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4880 transitions. [2022-01-11 07:41:31,216 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4880 transitions. Word has length 165 [2022-01-11 07:41:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:31,216 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4880 transitions. [2022-01-11 07:41:31,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4880 transitions. [2022-01-11 07:41:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:31,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:31,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:31,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:41:31,217 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:31,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash -288106414, now seen corresponding path program 1 times [2022-01-11 07:41:31,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:31,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109025321] [2022-01-11 07:41:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:31,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:31,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:31,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109025321] [2022-01-11 07:41:31,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109025321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:31,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:31,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:31,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501914686] [2022-01-11 07:41:31,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:31,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:31,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:31,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:31,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:31,261 INFO L87 Difference]: Start difference. First operand 3329 states and 4880 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:31,388 INFO L93 Difference]: Finished difference Result 6632 states and 9720 transitions. [2022-01-11 07:41:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:31,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:31,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:31,394 INFO L225 Difference]: With dead ends: 6632 [2022-01-11 07:41:31,394 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:31,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:31,398 INFO L933 BasicCegarLoop]: 2627 mSDtfsCounter, 2607 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:31,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2607 Valid, 2627 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:31,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:31,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4643823264201983) internal successors, (4872), 3328 states have internal predecessors, (4872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4872 transitions. [2022-01-11 07:41:31,518 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4872 transitions. Word has length 165 [2022-01-11 07:41:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:31,518 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4872 transitions. [2022-01-11 07:41:31,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4872 transitions. [2022-01-11 07:41:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:31,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:31,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:31,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:41:31,520 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:31,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:31,520 INFO L85 PathProgramCache]: Analyzing trace with hash -504803982, now seen corresponding path program 1 times [2022-01-11 07:41:31,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:31,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765732791] [2022-01-11 07:41:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:31,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:31,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:31,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765732791] [2022-01-11 07:41:31,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765732791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:31,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:31,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:31,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913698996] [2022-01-11 07:41:31,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:31,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:31,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:31,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:31,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:31,562 INFO L87 Difference]: Start difference. First operand 3329 states and 4872 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:31,719 INFO L93 Difference]: Finished difference Result 6631 states and 9703 transitions. [2022-01-11 07:41:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:31,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:31,725 INFO L225 Difference]: With dead ends: 6631 [2022-01-11 07:41:31,725 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:31,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:31,728 INFO L933 BasicCegarLoop]: 2622 mSDtfsCounter, 2601 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:31,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2601 Valid, 2622 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:31,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4619777577397055) internal successors, (4864), 3328 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4864 transitions. [2022-01-11 07:41:31,854 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4864 transitions. Word has length 165 [2022-01-11 07:41:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:31,854 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4864 transitions. [2022-01-11 07:41:31,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4864 transitions. [2022-01-11 07:41:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:31,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:31,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:31,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:41:31,855 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:31,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash -373246894, now seen corresponding path program 1 times [2022-01-11 07:41:31,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:31,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018803498] [2022-01-11 07:41:31,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:31,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:31,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:31,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018803498] [2022-01-11 07:41:31,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018803498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:31,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:31,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:31,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601156354] [2022-01-11 07:41:31,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:31,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:31,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:31,889 INFO L87 Difference]: Start difference. First operand 3329 states and 4864 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:32,017 INFO L93 Difference]: Finished difference Result 6630 states and 9686 transitions. [2022-01-11 07:41:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:32,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:32,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:32,022 INFO L225 Difference]: With dead ends: 6630 [2022-01-11 07:41:32,023 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:32,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:32,026 INFO L933 BasicCegarLoop]: 2617 mSDtfsCounter, 2595 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:32,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2595 Valid, 2617 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:32,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:32,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4595731890592125) internal successors, (4856), 3328 states have internal predecessors, (4856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4856 transitions. [2022-01-11 07:41:32,151 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4856 transitions. Word has length 165 [2022-01-11 07:41:32,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:32,151 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4856 transitions. [2022-01-11 07:41:32,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4856 transitions. [2022-01-11 07:41:32,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:32,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:32,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:32,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:41:32,152 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:32,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:32,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1477381774, now seen corresponding path program 1 times [2022-01-11 07:41:32,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:32,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901594994] [2022-01-11 07:41:32,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:32,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:32,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:32,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901594994] [2022-01-11 07:41:32,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901594994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:32,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:32,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:32,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809198098] [2022-01-11 07:41:32,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:32,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:32,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:32,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:32,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:32,185 INFO L87 Difference]: Start difference. First operand 3329 states and 4856 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:32,320 INFO L93 Difference]: Finished difference Result 6628 states and 9667 transitions. [2022-01-11 07:41:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:32,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:32,327 INFO L225 Difference]: With dead ends: 6628 [2022-01-11 07:41:32,327 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:32,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:32,332 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 2588 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2588 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:32,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2588 Valid, 2612 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4571686203787195) internal successors, (4848), 3328 states have internal predecessors, (4848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4848 transitions. [2022-01-11 07:41:32,493 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4848 transitions. Word has length 165 [2022-01-11 07:41:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:32,493 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4848 transitions. [2022-01-11 07:41:32,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4848 transitions. [2022-01-11 07:41:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:32,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:32,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:32,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:41:32,495 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:32,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1229846162, now seen corresponding path program 1 times [2022-01-11 07:41:32,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:32,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558466182] [2022-01-11 07:41:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:32,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:32,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:32,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558466182] [2022-01-11 07:41:32,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558466182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:32,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:32,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:32,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724277928] [2022-01-11 07:41:32,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:32,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:32,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:32,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:32,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:32,528 INFO L87 Difference]: Start difference. First operand 3329 states and 4848 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:32,665 INFO L93 Difference]: Finished difference Result 6627 states and 9650 transitions. [2022-01-11 07:41:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:32,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:32,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:32,670 INFO L225 Difference]: With dead ends: 6627 [2022-01-11 07:41:32,670 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:32,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:32,673 INFO L933 BasicCegarLoop]: 2607 mSDtfsCounter, 2582 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:32,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2582 Valid, 2607 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4547640516982265) internal successors, (4840), 3328 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4840 transitions. [2022-01-11 07:41:32,806 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4840 transitions. Word has length 165 [2022-01-11 07:41:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:32,806 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4840 transitions. [2022-01-11 07:41:32,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4840 transitions. [2022-01-11 07:41:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:32,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:32,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:32,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 07:41:32,809 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:32,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:32,809 INFO L85 PathProgramCache]: Analyzing trace with hash -206844558, now seen corresponding path program 1 times [2022-01-11 07:41:32,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:32,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807454425] [2022-01-11 07:41:32,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:32,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:32,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:32,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807454425] [2022-01-11 07:41:32,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807454425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:32,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:32,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:32,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934109147] [2022-01-11 07:41:32,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:32,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:32,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:32,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:32,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:32,851 INFO L87 Difference]: Start difference. First operand 3329 states and 4840 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:32,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:32,994 INFO L93 Difference]: Finished difference Result 6626 states and 9633 transitions. [2022-01-11 07:41:32,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:32,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:32,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:33,000 INFO L225 Difference]: With dead ends: 6626 [2022-01-11 07:41:33,000 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:33,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:33,004 INFO L933 BasicCegarLoop]: 2602 mSDtfsCounter, 2576 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:33,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2576 Valid, 2602 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:33,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4523594830177338) internal successors, (4832), 3328 states have internal predecessors, (4832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4832 transitions. [2022-01-11 07:41:33,184 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4832 transitions. Word has length 165 [2022-01-11 07:41:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:33,184 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4832 transitions. [2022-01-11 07:41:33,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4832 transitions. [2022-01-11 07:41:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:33,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:33,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:33,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 07:41:33,186 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:33,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1825020562, now seen corresponding path program 1 times [2022-01-11 07:41:33,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:33,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017778103] [2022-01-11 07:41:33,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:33,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:33,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:33,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017778103] [2022-01-11 07:41:33,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017778103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:33,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:33,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:33,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887982621] [2022-01-11 07:41:33,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:33,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:33,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:33,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:33,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:33,222 INFO L87 Difference]: Start difference. First operand 3329 states and 4832 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:33,394 INFO L93 Difference]: Finished difference Result 6625 states and 9616 transitions. [2022-01-11 07:41:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:33,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:33,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:33,400 INFO L225 Difference]: With dead ends: 6625 [2022-01-11 07:41:33,400 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:33,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:33,407 INFO L933 BasicCegarLoop]: 2567 mSDtfsCounter, 2423 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:33,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2423 Valid, 2695 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:33,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4415389239555154) internal successors, (4796), 3328 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4796 transitions. [2022-01-11 07:41:33,559 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4796 transitions. Word has length 165 [2022-01-11 07:41:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:33,559 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4796 transitions. [2022-01-11 07:41:33,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4796 transitions. [2022-01-11 07:41:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:33,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:33,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:33,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 07:41:33,561 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:33,561 INFO L85 PathProgramCache]: Analyzing trace with hash -731544591, now seen corresponding path program 1 times [2022-01-11 07:41:33,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:33,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196020724] [2022-01-11 07:41:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:33,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:33,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:33,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196020724] [2022-01-11 07:41:33,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196020724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:33,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:33,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:33,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588723388] [2022-01-11 07:41:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:33,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:33,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:33,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:33,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:33,594 INFO L87 Difference]: Start difference. First operand 3329 states and 4796 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:33,769 INFO L93 Difference]: Finished difference Result 6624 states and 9543 transitions. [2022-01-11 07:41:33,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:33,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:33,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:33,776 INFO L225 Difference]: With dead ends: 6624 [2022-01-11 07:41:33,776 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:33,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:33,780 INFO L933 BasicCegarLoop]: 2547 mSDtfsCounter, 2403 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:33,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 2674 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:33,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4307183648932973) internal successors, (4760), 3328 states have internal predecessors, (4760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4760 transitions. [2022-01-11 07:41:33,995 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4760 transitions. Word has length 165 [2022-01-11 07:41:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:33,995 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4760 transitions. [2022-01-11 07:41:33,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:33,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4760 transitions. [2022-01-11 07:41:33,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:33,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:33,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:33,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 07:41:33,997 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:33,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:33,997 INFO L85 PathProgramCache]: Analyzing trace with hash -438075696, now seen corresponding path program 1 times [2022-01-11 07:41:33,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:33,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168802365] [2022-01-11 07:41:33,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:33,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:34,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:34,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168802365] [2022-01-11 07:41:34,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168802365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:34,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:34,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:34,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073588025] [2022-01-11 07:41:34,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:34,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:34,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:34,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:34,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:34,033 INFO L87 Difference]: Start difference. First operand 3329 states and 4760 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:34,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:34,270 INFO L93 Difference]: Finished difference Result 6623 states and 9470 transitions. [2022-01-11 07:41:34,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:34,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:34,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:34,275 INFO L225 Difference]: With dead ends: 6623 [2022-01-11 07:41:34,275 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:34,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:34,279 INFO L933 BasicCegarLoop]: 2527 mSDtfsCounter, 2383 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:34,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2383 Valid, 2653 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:34,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.419897805831079) internal successors, (4724), 3328 states have internal predecessors, (4724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4724 transitions. [2022-01-11 07:41:34,463 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4724 transitions. Word has length 165 [2022-01-11 07:41:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:34,463 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4724 transitions. [2022-01-11 07:41:34,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4724 transitions. [2022-01-11 07:41:34,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:34,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:34,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:34,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 07:41:34,465 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:34,465 INFO L85 PathProgramCache]: Analyzing trace with hash -226220369, now seen corresponding path program 1 times [2022-01-11 07:41:34,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:34,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401275609] [2022-01-11 07:41:34,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:34,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:34,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:34,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401275609] [2022-01-11 07:41:34,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401275609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:34,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:34,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:34,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755982695] [2022-01-11 07:41:34,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:34,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:34,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:34,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:34,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:34,498 INFO L87 Difference]: Start difference. First operand 3329 states and 4724 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:34,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:34,679 INFO L93 Difference]: Finished difference Result 6622 states and 9397 transitions. [2022-01-11 07:41:34,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:34,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:34,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:34,683 INFO L225 Difference]: With dead ends: 6622 [2022-01-11 07:41:34,683 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:34,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:34,690 INFO L933 BasicCegarLoop]: 2507 mSDtfsCounter, 2363 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:34,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2363 Valid, 2632 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:34,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:34,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:34,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4090772467688608) internal successors, (4688), 3328 states have internal predecessors, (4688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4688 transitions. [2022-01-11 07:41:34,849 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4688 transitions. Word has length 165 [2022-01-11 07:41:34,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:34,849 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4688 transitions. [2022-01-11 07:41:34,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:34,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4688 transitions. [2022-01-11 07:41:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:34,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:34,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:34,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 07:41:34,851 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -721924082, now seen corresponding path program 1 times [2022-01-11 07:41:34,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:34,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965568529] [2022-01-11 07:41:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:34,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:34,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:34,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965568529] [2022-01-11 07:41:34,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965568529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:34,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:34,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:34,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37544136] [2022-01-11 07:41:34,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:34,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:34,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:34,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:34,892 INFO L87 Difference]: Start difference. First operand 3329 states and 4688 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:35,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:35,106 INFO L93 Difference]: Finished difference Result 6621 states and 9324 transitions. [2022-01-11 07:41:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:35,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:35,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:35,110 INFO L225 Difference]: With dead ends: 6621 [2022-01-11 07:41:35,110 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:35,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:35,113 INFO L933 BasicCegarLoop]: 2487 mSDtfsCounter, 2343 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2343 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:35,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2343 Valid, 2611 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:41:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:35,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3982566877066427) internal successors, (4652), 3328 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:35,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4652 transitions. [2022-01-11 07:41:35,275 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4652 transitions. Word has length 165 [2022-01-11 07:41:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:35,275 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4652 transitions. [2022-01-11 07:41:35,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:35,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4652 transitions. [2022-01-11 07:41:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:35,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:35,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:35,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-11 07:41:35,277 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:35,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2088728173, now seen corresponding path program 1 times [2022-01-11 07:41:35,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:35,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538078193] [2022-01-11 07:41:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:35,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:35,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:35,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538078193] [2022-01-11 07:41:35,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538078193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:35,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:35,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:35,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867401772] [2022-01-11 07:41:35,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:35,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:35,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:35,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:35,343 INFO L87 Difference]: Start difference. First operand 3329 states and 4652 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:35,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:35,534 INFO L93 Difference]: Finished difference Result 6620 states and 9251 transitions. [2022-01-11 07:41:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:35,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:35,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:35,538 INFO L225 Difference]: With dead ends: 6620 [2022-01-11 07:41:35,538 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:35,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:35,541 INFO L933 BasicCegarLoop]: 2467 mSDtfsCounter, 2323 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:35,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2323 Valid, 2590 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:35,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:35,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3874361286444243) internal successors, (4616), 3328 states have internal predecessors, (4616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4616 transitions. [2022-01-11 07:41:35,707 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4616 transitions. Word has length 165 [2022-01-11 07:41:35,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:35,707 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4616 transitions. [2022-01-11 07:41:35,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4616 transitions. [2022-01-11 07:41:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:35,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:35,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:35,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-11 07:41:35,708 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:35,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:35,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1661046348, now seen corresponding path program 1 times [2022-01-11 07:41:35,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:35,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503310191] [2022-01-11 07:41:35,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:35,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:35,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:35,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503310191] [2022-01-11 07:41:35,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503310191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:35,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:35,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:35,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366407436] [2022-01-11 07:41:35,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:35,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:35,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:35,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:35,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:35,743 INFO L87 Difference]: Start difference. First operand 3329 states and 4616 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:35,985 INFO L93 Difference]: Finished difference Result 6619 states and 9178 transitions. [2022-01-11 07:41:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:35,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:35,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:35,989 INFO L225 Difference]: With dead ends: 6619 [2022-01-11 07:41:35,989 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:35,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:35,991 INFO L933 BasicCegarLoop]: 2447 mSDtfsCounter, 2303 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:35,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2303 Valid, 2569 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:35,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3766155695822062) internal successors, (4580), 3328 states have internal predecessors, (4580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:36,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4580 transitions. [2022-01-11 07:41:36,162 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4580 transitions. Word has length 165 [2022-01-11 07:41:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:36,162 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4580 transitions. [2022-01-11 07:41:36,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4580 transitions. [2022-01-11 07:41:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:36,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:36,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:36,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-11 07:41:36,163 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:36,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:36,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1634923307, now seen corresponding path program 1 times [2022-01-11 07:41:36,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:36,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443455248] [2022-01-11 07:41:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:36,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:36,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:36,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:36,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443455248] [2022-01-11 07:41:36,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443455248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:36,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:36,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:36,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583739281] [2022-01-11 07:41:36,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:36,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:36,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:36,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:36,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:36,200 INFO L87 Difference]: Start difference. First operand 3329 states and 4580 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:36,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:36,398 INFO L93 Difference]: Finished difference Result 6618 states and 9105 transitions. [2022-01-11 07:41:36,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:36,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:36,402 INFO L225 Difference]: With dead ends: 6618 [2022-01-11 07:41:36,402 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:36,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:36,406 INFO L933 BasicCegarLoop]: 2427 mSDtfsCounter, 2283 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:36,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 2548 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:36,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.365795010519988) internal successors, (4544), 3328 states have internal predecessors, (4544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4544 transitions. [2022-01-11 07:41:36,581 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4544 transitions. Word has length 165 [2022-01-11 07:41:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:36,581 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4544 transitions. [2022-01-11 07:41:36,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4544 transitions. [2022-01-11 07:41:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:36,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:36,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:36,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-11 07:41:36,582 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:36,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash -432359030, now seen corresponding path program 1 times [2022-01-11 07:41:36,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:36,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030110534] [2022-01-11 07:41:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:36,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:36,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:36,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030110534] [2022-01-11 07:41:36,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030110534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:36,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:36,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:36,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809030049] [2022-01-11 07:41:36,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:36,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:36,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:36,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:36,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:36,615 INFO L87 Difference]: Start difference. First operand 3329 states and 4544 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:36,821 INFO L93 Difference]: Finished difference Result 6617 states and 9032 transitions. [2022-01-11 07:41:36,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:36,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:36,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:36,825 INFO L225 Difference]: With dead ends: 6617 [2022-01-11 07:41:36,825 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:36,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:36,829 INFO L933 BasicCegarLoop]: 2407 mSDtfsCounter, 2263 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:36,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2263 Valid, 2527 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:36,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:37,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3549744514577697) internal successors, (4508), 3328 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4508 transitions. [2022-01-11 07:41:37,034 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4508 transitions. Word has length 165 [2022-01-11 07:41:37,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:37,034 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4508 transitions. [2022-01-11 07:41:37,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4508 transitions. [2022-01-11 07:41:37,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:37,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:37,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:37,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-11 07:41:37,035 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1917182743, now seen corresponding path program 1 times [2022-01-11 07:41:37,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:37,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696439235] [2022-01-11 07:41:37,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:37,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:37,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:37,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696439235] [2022-01-11 07:41:37,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696439235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:37,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:37,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:37,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114075278] [2022-01-11 07:41:37,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:37,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:37,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:37,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:37,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:37,068 INFO L87 Difference]: Start difference. First operand 3329 states and 4508 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:37,273 INFO L93 Difference]: Finished difference Result 6616 states and 8959 transitions. [2022-01-11 07:41:37,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:37,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:37,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:37,278 INFO L225 Difference]: With dead ends: 6616 [2022-01-11 07:41:37,278 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:37,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:37,281 INFO L933 BasicCegarLoop]: 2387 mSDtfsCounter, 2243 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:37,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2243 Valid, 2506 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:37,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3441538923955516) internal successors, (4472), 3328 states have internal predecessors, (4472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4472 transitions. [2022-01-11 07:41:37,466 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4472 transitions. Word has length 165 [2022-01-11 07:41:37,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:37,466 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4472 transitions. [2022-01-11 07:41:37,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4472 transitions. [2022-01-11 07:41:37,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:37,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:37,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:37,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-11 07:41:37,467 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:37,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:37,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1038134840, now seen corresponding path program 1 times [2022-01-11 07:41:37,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:37,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893596621] [2022-01-11 07:41:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:37,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:37,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:37,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893596621] [2022-01-11 07:41:37,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893596621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:37,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:37,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:37,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104153993] [2022-01-11 07:41:37,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:37,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:37,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:37,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:37,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:37,502 INFO L87 Difference]: Start difference. First operand 3329 states and 4472 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:37,712 INFO L93 Difference]: Finished difference Result 6615 states and 8886 transitions. [2022-01-11 07:41:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:37,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:37,716 INFO L225 Difference]: With dead ends: 6615 [2022-01-11 07:41:37,716 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:37,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:37,719 INFO L933 BasicCegarLoop]: 2367 mSDtfsCounter, 2223 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:37,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2223 Valid, 2485 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:37,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:37,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3333333333333333) internal successors, (4436), 3328 states have internal predecessors, (4436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4436 transitions. [2022-01-11 07:41:37,991 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4436 transitions. Word has length 165 [2022-01-11 07:41:37,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:37,991 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4436 transitions. [2022-01-11 07:41:37,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4436 transitions. [2022-01-11 07:41:37,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:37,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:37,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:37,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-11 07:41:37,992 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:37,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:37,993 INFO L85 PathProgramCache]: Analyzing trace with hash -890211417, now seen corresponding path program 1 times [2022-01-11 07:41:37,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:37,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865979310] [2022-01-11 07:41:37,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:37,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:38,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:38,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865979310] [2022-01-11 07:41:38,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865979310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:38,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:38,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:38,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665547518] [2022-01-11 07:41:38,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:38,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:38,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:38,028 INFO L87 Difference]: Start difference. First operand 3329 states and 4436 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:38,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:38,256 INFO L93 Difference]: Finished difference Result 6613 states and 8811 transitions. [2022-01-11 07:41:38,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:38,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:38,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:38,260 INFO L225 Difference]: With dead ends: 6613 [2022-01-11 07:41:38,260 INFO L226 Difference]: Without dead ends: 3329 [2022-01-11 07:41:38,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:38,263 INFO L933 BasicCegarLoop]: 2347 mSDtfsCounter, 2202 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2202 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:38,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2202 Valid, 2464 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-11 07:41:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-11 07:41:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3225127742711151) internal successors, (4400), 3328 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4400 transitions. [2022-01-11 07:41:38,451 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4400 transitions. Word has length 165 [2022-01-11 07:41:38,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:38,453 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4400 transitions. [2022-01-11 07:41:38,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4400 transitions. [2022-01-11 07:41:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:38,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:38,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:38,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-11 07:41:38,454 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:38,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash 595006470, now seen corresponding path program 1 times [2022-01-11 07:41:38,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:38,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767351112] [2022-01-11 07:41:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:38,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:38,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:38,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767351112] [2022-01-11 07:41:38,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767351112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:38,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:38,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:41:38,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325036479] [2022-01-11 07:41:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:38,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:41:38,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:41:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:41:38,506 INFO L87 Difference]: Start difference. First operand 3329 states and 4400 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:38,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:38,966 INFO L93 Difference]: Finished difference Result 7584 states and 10109 transitions. [2022-01-11 07:41:38,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:41:38,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:38,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:38,971 INFO L225 Difference]: With dead ends: 7584 [2022-01-11 07:41:38,971 INFO L226 Difference]: Without dead ends: 4307 [2022-01-11 07:41:38,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:41:38,976 INFO L933 BasicCegarLoop]: 2529 mSDtfsCounter, 6800 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6800 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:38,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6800 Valid, 4543 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:41:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2022-01-11 07:41:39,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 3335. [2022-01-11 07:41:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3335 states, 3333 states have (on average 1.3135313531353134) internal successors, (4378), 3334 states have internal predecessors, (4378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 4378 transitions. [2022-01-11 07:41:39,226 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 4378 transitions. Word has length 165 [2022-01-11 07:41:39,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:39,226 INFO L470 AbstractCegarLoop]: Abstraction has 3335 states and 4378 transitions. [2022-01-11 07:41:39,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:39,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 4378 transitions. [2022-01-11 07:41:39,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:39,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:39,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:39,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-11 07:41:39,227 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:39,227 INFO L85 PathProgramCache]: Analyzing trace with hash -588011065, now seen corresponding path program 1 times [2022-01-11 07:41:39,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:39,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452744342] [2022-01-11 07:41:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:39,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:39,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:39,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452744342] [2022-01-11 07:41:39,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452744342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:39,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:39,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:41:39,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176567258] [2022-01-11 07:41:39,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:39,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:41:39,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:39,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:41:39,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:41:39,265 INFO L87 Difference]: Start difference. First operand 3335 states and 4378 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:39,698 INFO L93 Difference]: Finished difference Result 7924 states and 10464 transitions. [2022-01-11 07:41:39,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:41:39,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:39,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:39,704 INFO L225 Difference]: With dead ends: 7924 [2022-01-11 07:41:39,704 INFO L226 Difference]: Without dead ends: 4655 [2022-01-11 07:41:39,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:41:39,708 INFO L933 BasicCegarLoop]: 2478 mSDtfsCounter, 6446 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6446 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:39,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6446 Valid, 5221 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:41:39,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2022-01-11 07:41:39,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 3341. [2022-01-11 07:41:39,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3341 states, 3339 states have (on average 1.3045822102425877) internal successors, (4356), 3340 states have internal predecessors, (4356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3341 states to 3341 states and 4356 transitions. [2022-01-11 07:41:39,953 INFO L78 Accepts]: Start accepts. Automaton has 3341 states and 4356 transitions. Word has length 165 [2022-01-11 07:41:39,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:39,954 INFO L470 AbstractCegarLoop]: Abstraction has 3341 states and 4356 transitions. [2022-01-11 07:41:39,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:39,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3341 states and 4356 transitions. [2022-01-11 07:41:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:39,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:39,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:39,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-11 07:41:39,955 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:39,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:39,955 INFO L85 PathProgramCache]: Analyzing trace with hash 542775560, now seen corresponding path program 1 times [2022-01-11 07:41:39,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:39,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884898149] [2022-01-11 07:41:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:39,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:39,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:39,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884898149] [2022-01-11 07:41:39,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884898149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:39,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:39,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:41:39,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105629719] [2022-01-11 07:41:39,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:39,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:41:39,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:39,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:41:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:41:39,999 INFO L87 Difference]: Start difference. First operand 3341 states and 4356 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:40,525 INFO L93 Difference]: Finished difference Result 8103 states and 10610 transitions. [2022-01-11 07:41:40,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:41:40,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:40,530 INFO L225 Difference]: With dead ends: 8103 [2022-01-11 07:41:40,530 INFO L226 Difference]: Without dead ends: 4835 [2022-01-11 07:41:40,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:41:40,533 INFO L933 BasicCegarLoop]: 2445 mSDtfsCounter, 6255 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6255 SdHoareTripleChecker+Valid, 5517 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:40,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6255 Valid, 5517 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:41:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4835 states. [2022-01-11 07:41:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4835 to 3347. [2022-01-11 07:41:40,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 3345 states have (on average 1.2956651718983558) internal successors, (4334), 3346 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 4334 transitions. [2022-01-11 07:41:40,802 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 4334 transitions. Word has length 165 [2022-01-11 07:41:40,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:40,803 INFO L470 AbstractCegarLoop]: Abstraction has 3347 states and 4334 transitions. [2022-01-11 07:41:40,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 4334 transitions. [2022-01-11 07:41:40,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:40,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:40,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:40,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-11 07:41:40,804 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:40,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:40,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1343311113, now seen corresponding path program 1 times [2022-01-11 07:41:40,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:40,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342341099] [2022-01-11 07:41:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:40,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:40,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:40,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:40,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342341099] [2022-01-11 07:41:40,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342341099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:40,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:40,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:40,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334924459] [2022-01-11 07:41:40,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:40,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:40,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:40,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:40,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:40,841 INFO L87 Difference]: Start difference. First operand 3347 states and 4334 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:41,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:41,404 INFO L93 Difference]: Finished difference Result 9535 states and 12339 transitions. [2022-01-11 07:41:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:41,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:41,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:41,411 INFO L225 Difference]: With dead ends: 9535 [2022-01-11 07:41:41,411 INFO L226 Difference]: Without dead ends: 6312 [2022-01-11 07:41:41,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:41,413 INFO L933 BasicCegarLoop]: 2303 mSDtfsCounter, 2042 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:41,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2042 Valid, 4384 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:41,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6312 states. [2022-01-11 07:41:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6312 to 6304. [2022-01-11 07:41:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6304 states, 6302 states have (on average 1.2897492859409712) internal successors, (8128), 6303 states have internal predecessors, (8128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:41,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 8128 transitions. [2022-01-11 07:41:41,918 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 8128 transitions. Word has length 165 [2022-01-11 07:41:41,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:41,918 INFO L470 AbstractCegarLoop]: Abstraction has 6304 states and 8128 transitions. [2022-01-11 07:41:41,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:41,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 8128 transitions. [2022-01-11 07:41:41,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:41,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:41,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:41,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-11 07:41:41,919 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:41,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash 956117832, now seen corresponding path program 1 times [2022-01-11 07:41:41,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:41,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208226989] [2022-01-11 07:41:41,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:41,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:41,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:41,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208226989] [2022-01-11 07:41:41,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208226989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:41,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:41,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:41,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58067066] [2022-01-11 07:41:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:41,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:41,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:41,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:41,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:41,976 INFO L87 Difference]: Start difference. First operand 6304 states and 8128 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:42,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:42,550 INFO L93 Difference]: Finished difference Result 12583 states and 16218 transitions. [2022-01-11 07:41:42,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:42,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:42,557 INFO L225 Difference]: With dead ends: 12583 [2022-01-11 07:41:42,557 INFO L226 Difference]: Without dead ends: 6304 [2022-01-11 07:41:42,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:42,561 INFO L933 BasicCegarLoop]: 2309 mSDtfsCounter, 2185 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:42,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 2309 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:42,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2022-01-11 07:41:43,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 6304. [2022-01-11 07:41:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6304 states, 6302 states have (on average 1.2875277689622342) internal successors, (8114), 6303 states have internal predecessors, (8114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 8114 transitions. [2022-01-11 07:41:43,066 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 8114 transitions. Word has length 165 [2022-01-11 07:41:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:43,067 INFO L470 AbstractCegarLoop]: Abstraction has 6304 states and 8114 transitions. [2022-01-11 07:41:43,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:43,067 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 8114 transitions. [2022-01-11 07:41:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:43,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:43,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:43,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-11 07:41:43,068 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1388549209, now seen corresponding path program 1 times [2022-01-11 07:41:43,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:43,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792071153] [2022-01-11 07:41:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:43,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:43,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:43,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792071153] [2022-01-11 07:41:43,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792071153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:43,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:43,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:43,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366920516] [2022-01-11 07:41:43,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:43,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:43,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:43,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:43,113 INFO L87 Difference]: Start difference. First operand 6304 states and 8114 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:43,668 INFO L93 Difference]: Finished difference Result 12579 states and 16186 transitions. [2022-01-11 07:41:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:43,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:43,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:43,675 INFO L225 Difference]: With dead ends: 12579 [2022-01-11 07:41:43,675 INFO L226 Difference]: Without dead ends: 6304 [2022-01-11 07:41:43,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:43,680 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 2176 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:43,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2176 Valid, 2304 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:43,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2022-01-11 07:41:44,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 6304. [2022-01-11 07:41:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6304 states, 6302 states have (on average 1.2853062519834972) internal successors, (8100), 6303 states have internal predecessors, (8100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 8100 transitions. [2022-01-11 07:41:44,204 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 8100 transitions. Word has length 165 [2022-01-11 07:41:44,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:44,205 INFO L470 AbstractCegarLoop]: Abstraction has 6304 states and 8100 transitions. [2022-01-11 07:41:44,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 8100 transitions. [2022-01-11 07:41:44,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:44,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:44,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:44,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-11 07:41:44,206 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:44,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:44,206 INFO L85 PathProgramCache]: Analyzing trace with hash 896314246, now seen corresponding path program 1 times [2022-01-11 07:41:44,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:44,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726220259] [2022-01-11 07:41:44,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:44,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:44,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:44,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726220259] [2022-01-11 07:41:44,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726220259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:44,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:44,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:44,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723740871] [2022-01-11 07:41:44,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:44,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:44,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:44,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:44,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:44,248 INFO L87 Difference]: Start difference. First operand 6304 states and 8100 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:44,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:44,833 INFO L93 Difference]: Finished difference Result 12564 states and 16143 transitions. [2022-01-11 07:41:44,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:44,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:44,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:44,841 INFO L225 Difference]: With dead ends: 12564 [2022-01-11 07:41:44,841 INFO L226 Difference]: Without dead ends: 6304 [2022-01-11 07:41:44,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:44,846 INFO L933 BasicCegarLoop]: 2271 mSDtfsCounter, 2025 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:44,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2025 Valid, 2384 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:44,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2022-01-11 07:41:45,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 6304. [2022-01-11 07:41:45,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6304 states, 6302 states have (on average 1.278800380831482) internal successors, (8059), 6303 states have internal predecessors, (8059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 8059 transitions. [2022-01-11 07:41:45,373 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 8059 transitions. Word has length 165 [2022-01-11 07:41:45,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:45,374 INFO L470 AbstractCegarLoop]: Abstraction has 6304 states and 8059 transitions. [2022-01-11 07:41:45,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 8059 transitions. [2022-01-11 07:41:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:41:45,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:45,374 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:45,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-11 07:41:45,375 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:45,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2045343353, now seen corresponding path program 1 times [2022-01-11 07:41:45,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:45,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683320269] [2022-01-11 07:41:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:45,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:45,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:45,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683320269] [2022-01-11 07:41:45,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683320269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:45,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:45,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:41:45,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291883462] [2022-01-11 07:41:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:45,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:45,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:45,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:45,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:45,417 INFO L87 Difference]: Start difference. First operand 6304 states and 8059 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:46,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:46,538 INFO L93 Difference]: Finished difference Result 18597 states and 23781 transitions. [2022-01-11 07:41:46,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:46,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-11 07:41:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:46,554 INFO L225 Difference]: With dead ends: 18597 [2022-01-11 07:41:46,555 INFO L226 Difference]: Without dead ends: 12340 [2022-01-11 07:41:46,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:46,563 INFO L933 BasicCegarLoop]: 2271 mSDtfsCounter, 2076 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 4329 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:46,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2076 Valid, 4329 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12340 states. [2022-01-11 07:41:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12340 to 11982. [2022-01-11 07:41:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11982 states, 11980 states have (on average 1.2748747913188647) internal successors, (15273), 11981 states have internal predecessors, (15273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11982 states to 11982 states and 15273 transitions. [2022-01-11 07:41:47,680 INFO L78 Accepts]: Start accepts. Automaton has 11982 states and 15273 transitions. Word has length 165 [2022-01-11 07:41:47,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:47,680 INFO L470 AbstractCegarLoop]: Abstraction has 11982 states and 15273 transitions. [2022-01-11 07:41:47,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 11982 states and 15273 transitions. [2022-01-11 07:41:47,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:41:47,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:47,685 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:47,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-11 07:41:47,686 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:47,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:47,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1086122004, now seen corresponding path program 1 times [2022-01-11 07:41:47,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:47,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157147108] [2022-01-11 07:41:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:47,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:47,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:47,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157147108] [2022-01-11 07:41:47,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157147108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:47,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:47,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:47,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098974243] [2022-01-11 07:41:47,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:47,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:47,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:47,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:47,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:47,740 INFO L87 Difference]: Start difference. First operand 11982 states and 15273 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:49,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:49,960 INFO L93 Difference]: Finished difference Result 35546 states and 45357 transitions. [2022-01-11 07:41:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:41:49,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-11 07:41:49,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:49,989 INFO L225 Difference]: With dead ends: 35546 [2022-01-11 07:41:49,989 INFO L226 Difference]: Without dead ends: 23617 [2022-01-11 07:41:49,998 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 [2022-01-11 07:41:49,998 INFO L933 BasicCegarLoop]: 2268 mSDtfsCounter, 2123 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 4326 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:49,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2123 Valid, 4326 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:41:50,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23617 states. [2022-01-11 07:41:52,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23617 to 22913. [2022-01-11 07:41:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22913 states, 22911 states have (on average 1.2727074331107329) internal successors, (29159), 22912 states have internal predecessors, (29159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22913 states to 22913 states and 29159 transitions. [2022-01-11 07:41:52,065 INFO L78 Accepts]: Start accepts. Automaton has 22913 states and 29159 transitions. Word has length 268 [2022-01-11 07:41:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:52,066 INFO L470 AbstractCegarLoop]: Abstraction has 22913 states and 29159 transitions. [2022-01-11 07:41:52,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:52,066 INFO L276 IsEmpty]: Start isEmpty. Operand 22913 states and 29159 transitions. [2022-01-11 07:41:52,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:41:52,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:52,074 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:52,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-11 07:41:52,075 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:52,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:52,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1733991477, now seen corresponding path program 1 times [2022-01-11 07:41:52,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:52,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106370816] [2022-01-11 07:41:52,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:52,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:52,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:52,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106370816] [2022-01-11 07:41:52,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106370816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:52,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:52,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:41:52,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507740304] [2022-01-11 07:41:52,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:52,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:41:52,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:52,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:41:52,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:41:52,217 INFO L87 Difference]: Start difference. First operand 22913 states and 29159 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:41:56,124 INFO L93 Difference]: Finished difference Result 62536 states and 79939 transitions. [2022-01-11 07:41:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:41:56,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-11 07:41:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:41:56,176 INFO L225 Difference]: With dead ends: 62536 [2022-01-11 07:41:56,176 INFO L226 Difference]: Without dead ends: 39729 [2022-01-11 07:41:56,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:41:56,191 INFO L933 BasicCegarLoop]: 2302 mSDtfsCounter, 5322 mSDsluCounter, 4848 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5322 SdHoareTripleChecker+Valid, 7150 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:41:56,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5322 Valid, 7150 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:41:56,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39729 states. [2022-01-11 07:41:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39729 to 22961. [2022-01-11 07:41:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22961 states, 22959 states have (on average 1.2637309987368788) internal successors, (29014), 22960 states have internal predecessors, (29014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:58,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22961 states to 22961 states and 29014 transitions. [2022-01-11 07:41:58,883 INFO L78 Accepts]: Start accepts. Automaton has 22961 states and 29014 transitions. Word has length 268 [2022-01-11 07:41:58,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:41:58,883 INFO L470 AbstractCegarLoop]: Abstraction has 22961 states and 29014 transitions. [2022-01-11 07:41:58,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:41:58,884 INFO L276 IsEmpty]: Start isEmpty. Operand 22961 states and 29014 transitions. [2022-01-11 07:41:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:41:58,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:41:58,891 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:41:58,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-11 07:41:58,891 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:41:58,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:41:58,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1751612339, now seen corresponding path program 1 times [2022-01-11 07:41:58,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:41:58,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254399138] [2022-01-11 07:41:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:41:58,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:41:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:41:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:41:58,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:41:58,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254399138] [2022-01-11 07:41:58,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254399138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:41:58,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:41:58,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:41:58,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318723439] [2022-01-11 07:41:58,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:41:58,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:41:58,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:41:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:41:58,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:41:58,991 INFO L87 Difference]: Start difference. First operand 22961 states and 29014 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:42:03,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:42:03,454 INFO L93 Difference]: Finished difference Result 68023 states and 85561 transitions. [2022-01-11 07:42:03,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:42:03,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-11 07:42:03,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:42:03,512 INFO L225 Difference]: With dead ends: 68023 [2022-01-11 07:42:03,512 INFO L226 Difference]: Without dead ends: 45223 [2022-01-11 07:42:03,539 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 [2022-01-11 07:42:03,540 INFO L933 BasicCegarLoop]: 2704 mSDtfsCounter, 2090 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 4939 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:42:03,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2090 Valid, 4939 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:42:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45223 states. [2022-01-11 07:42:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45223 to 44551. [2022-01-11 07:42:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44551 states, 44549 states have (on average 1.2534737031134258) internal successors, (55841), 44550 states have internal predecessors, (55841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:42:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44551 states to 44551 states and 55841 transitions. [2022-01-11 07:42:08,549 INFO L78 Accepts]: Start accepts. Automaton has 44551 states and 55841 transitions. Word has length 268 [2022-01-11 07:42:08,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:42:08,549 INFO L470 AbstractCegarLoop]: Abstraction has 44551 states and 55841 transitions. [2022-01-11 07:42:08,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:42:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 44551 states and 55841 transitions. [2022-01-11 07:42:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:42:08,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:42:08,563 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:42:08,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-11 07:42:08,563 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:42:08,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:42:08,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1292179024, now seen corresponding path program 1 times [2022-01-11 07:42:08,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:42:08,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075467886] [2022-01-11 07:42:08,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:42:08,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:42:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:42:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:42:08,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:42:08,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075467886] [2022-01-11 07:42:08,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075467886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:42:08,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:42:08,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:42:08,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115802272] [2022-01-11 07:42:08,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:42:08,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:42:08,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:42:08,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:42:08,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:42:08,595 INFO L87 Difference]: Start difference. First operand 44551 states and 55841 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:42:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:42:13,455 INFO L93 Difference]: Finished difference Result 88891 states and 111429 transitions. [2022-01-11 07:42:13,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:42:13,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 268 [2022-01-11 07:42:13,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:42:13,531 INFO L225 Difference]: With dead ends: 88891 [2022-01-11 07:42:13,531 INFO L226 Difference]: Without dead ends: 44397 [2022-01-11 07:42:13,585 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 [2022-01-11 07:42:13,586 INFO L933 BasicCegarLoop]: 2269 mSDtfsCounter, 2264 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:42:13,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2264 Valid, 2270 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:42:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44397 states. [2022-01-11 07:42:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44397 to 44397. [2022-01-11 07:42:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44397 states, 44395 states have (on average 1.2536772159026917) internal successors, (55657), 44396 states have internal predecessors, (55657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:42:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44397 states to 44397 states and 55657 transitions. [2022-01-11 07:42:18,240 INFO L78 Accepts]: Start accepts. Automaton has 44397 states and 55657 transitions. Word has length 268 [2022-01-11 07:42:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:42:18,240 INFO L470 AbstractCegarLoop]: Abstraction has 44397 states and 55657 transitions. [2022-01-11 07:42:18,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:42:18,240 INFO L276 IsEmpty]: Start isEmpty. Operand 44397 states and 55657 transitions. [2022-01-11 07:42:18,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-11 07:42:18,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:42:18,254 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:42:18,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-11 07:42:18,256 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:42:18,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:42:18,257 INFO L85 PathProgramCache]: Analyzing trace with hash 202775198, now seen corresponding path program 1 times [2022-01-11 07:42:18,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:42:18,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713910402] [2022-01-11 07:42:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:42:18,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:42:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:42:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:42:18,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:42:18,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713910402] [2022-01-11 07:42:18,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713910402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:42:18,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:42:18,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:42:18,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172796673] [2022-01-11 07:42:18,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:42:18,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:42:18,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:42:18,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:42:18,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:42:18,344 INFO L87 Difference]: Start difference. First operand 44397 states and 55657 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)