/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.08.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:05:02,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:05:02,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:05:02,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:05:02,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:05:02,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:05:02,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:05:02,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:05:02,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:05:02,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:05:02,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:05:02,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:05:02,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:05:02,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:05:02,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:05:02,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:05:02,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:05:02,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:05:02,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:05:02,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:05:02,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:05:02,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:05:02,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:05:02,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:05:02,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:05:02,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:05:02,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:05:02,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:05:02,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:05:02,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 20:05:02,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:05:02,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:05:02,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:05:02,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 20:05:02,176 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:05:02,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:05:02,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:05:02,177 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:05:02,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:05:02,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:05:02,178 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:05:02,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:05:02,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:05:02,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:05:02,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:05:02,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:05:02,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:05:02,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:05:02,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:05:02,181 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:05:02,181 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:05:02,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:05:02,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:05:02,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:05:02,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:05:02,382 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:05:02,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.08.cil-2.c [2022-01-10 20:05:02,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b40bfa83/3249212d94a24600b586726e564d86fe/FLAGbeac1eedb [2022-01-10 20:05:02,828 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:05:02,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.08.cil-2.c [2022-01-10 20:05:02,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b40bfa83/3249212d94a24600b586726e564d86fe/FLAGbeac1eedb [2022-01-10 20:05:02,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b40bfa83/3249212d94a24600b586726e564d86fe [2022-01-10 20:05:02,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:05:02,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:05:02,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:05:02,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:05:02,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:05:02,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:05:02" (1/1) ... [2022-01-10 20:05:02,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40127bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:02, skipping insertion in model container [2022-01-10 20:05:02,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:05:02" (1/1) ... [2022-01-10 20:05:02,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:05:02,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:05:03,021 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_3.cil+token_ring.08.cil-2.c[911,924] [2022-01-10 20:05:03,058 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_3.cil+token_ring.08.cil-2.c[8416,8429] [2022-01-10 20:05:03,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:05:03,112 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:05:03,120 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_3.cil+token_ring.08.cil-2.c[911,924] [2022-01-10 20:05:03,132 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_3.cil+token_ring.08.cil-2.c[8416,8429] [2022-01-10 20:05:03,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:05:03,195 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:05:03,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03 WrapperNode [2022-01-10 20:05:03,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:05:03,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:05:03,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:05:03,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:05:03,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,280 INFO L137 Inliner]: procedures = 72, calls = 86, calls flagged for inlining = 81, calls inlined = 191, statements flattened = 2774 [2022-01-10 20:05:03,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:05:03,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:05:03,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:05:03,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:05:03,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:05:03,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:05:03,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:05:03,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:05:03,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (1/1) ... [2022-01-10 20:05:03,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:05:03,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:05:03,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 20:05:03,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 20:05:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:05:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:05:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:05:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:05:03,599 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:05:03,601 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:05:04,818 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !(1bv32 == ~q_free~0); [2022-01-10 20:05:04,818 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2022-01-10 20:05:04,819 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:05:04,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:05:04,830 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-01-10 20:05:04,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:05:04 BoogieIcfgContainer [2022-01-10 20:05:04,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:05:04,834 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:05:04,834 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:05:04,836 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:05:04,838 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:05:04" (1/1) ... [2022-01-10 20:05:05,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:05:05 BasicIcfg [2022-01-10 20:05:05,045 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:05:05,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:05:05,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:05:05,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:05:05,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:05:02" (1/4) ... [2022-01-10 20:05:05,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be6f013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:05:05, skipping insertion in model container [2022-01-10 20:05:05,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:03" (2/4) ... [2022-01-10 20:05:05,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be6f013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:05:05, skipping insertion in model container [2022-01-10 20:05:05,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:05:04" (3/4) ... [2022-01-10 20:05:05,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be6f013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:05:05, skipping insertion in model container [2022-01-10 20:05:05,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:05:05" (4/4) ... [2022-01-10 20:05:05,051 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.08.cil-2.cTransformedIcfg [2022-01-10 20:05:05,055 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:05:05,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 20:05:05,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:05:05,092 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 20:05:05,093 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 20:05:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 1150 states, 1145 states have (on average 1.525764192139738) internal successors, (1747), 1149 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:05:05,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:05,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:05,122 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:05,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:05,126 INFO L85 PathProgramCache]: Analyzing trace with hash 832543862, now seen corresponding path program 1 times [2022-01-10 20:05:05,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:05,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598602886] [2022-01-10 20:05:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:05,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:05,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:05,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598602886] [2022-01-10 20:05:05,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598602886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:05,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:05,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:05,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676430615] [2022-01-10 20:05:05,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:05,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:05,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:05,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,453 INFO L87 Difference]: Start difference. First operand has 1150 states, 1145 states have (on average 1.525764192139738) internal successors, (1747), 1149 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:05,618 INFO L93 Difference]: Finished difference Result 2307 states and 3498 transitions. [2022-01-10 20:05:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:05,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 20:05:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:05,638 INFO L225 Difference]: With dead ends: 2307 [2022-01-10 20:05:05,639 INFO L226 Difference]: Without dead ends: 1272 [2022-01-10 20:05:05,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,650 INFO L933 BasicCegarLoop]: 1703 mSDtfsCounter, 185 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:05,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 3374 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-01-10 20:05:05,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1268. [2022-01-10 20:05:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1264 states have (on average 1.490506329113924) internal successors, (1884), 1267 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1884 transitions. [2022-01-10 20:05:05,740 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1884 transitions. Word has length 44 [2022-01-10 20:05:05,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:05,741 INFO L470 AbstractCegarLoop]: Abstraction has 1268 states and 1884 transitions. [2022-01-10 20:05:05,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1884 transitions. [2022-01-10 20:05:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:05:05,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:05,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:05,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:05:05,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:05,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1964746634, now seen corresponding path program 1 times [2022-01-10 20:05:05,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:05,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763965139] [2022-01-10 20:05:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:05,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:05,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:05,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763965139] [2022-01-10 20:05:05,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763965139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:05,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:05,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:05,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549458922] [2022-01-10 20:05:05,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:05,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:05,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,873 INFO L87 Difference]: Start difference. First operand 1268 states and 1884 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:05,935 INFO L93 Difference]: Finished difference Result 1686 states and 2489 transitions. [2022-01-10 20:05:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:05,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 20:05:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:05,943 INFO L225 Difference]: With dead ends: 1686 [2022-01-10 20:05:05,943 INFO L226 Difference]: Without dead ends: 1446 [2022-01-10 20:05:05,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,947 INFO L933 BasicCegarLoop]: 1688 mSDtfsCounter, 1662 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:05,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1662 Valid, 1823 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-01-10 20:05:05,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1438. [2022-01-10 20:05:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1434 states have (on average 1.4776847977684797) internal successors, (2119), 1437 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2119 transitions. [2022-01-10 20:05:05,981 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2119 transitions. Word has length 44 [2022-01-10 20:05:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:05,981 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 2119 transitions. [2022-01-10 20:05:05,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2119 transitions. [2022-01-10 20:05:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 20:05:05,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:05,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:05,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:05:05,986 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:05,987 INFO L85 PathProgramCache]: Analyzing trace with hash 486971642, now seen corresponding path program 1 times [2022-01-10 20:05:05,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:05,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445036715] [2022-01-10 20:05:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:05,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:06,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:06,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445036715] [2022-01-10 20:05:06,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445036715] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:06,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:06,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:06,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789349189] [2022-01-10 20:05:06,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:06,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:06,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:06,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:06,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,053 INFO L87 Difference]: Start difference. First operand 1438 states and 2119 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:06,115 INFO L93 Difference]: Finished difference Result 2160 states and 3153 transitions. [2022-01-10 20:05:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 20:05:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:06,121 INFO L225 Difference]: With dead ends: 2160 [2022-01-10 20:05:06,122 INFO L226 Difference]: Without dead ends: 1764 [2022-01-10 20:05:06,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,128 INFO L933 BasicCegarLoop]: 1682 mSDtfsCounter, 1646 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:06,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1646 Valid, 1820 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-01-10 20:05:06,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1756. [2022-01-10 20:05:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1752 states have (on average 1.45662100456621) internal successors, (2552), 1755 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2552 transitions. [2022-01-10 20:05:06,171 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2552 transitions. Word has length 45 [2022-01-10 20:05:06,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:06,171 INFO L470 AbstractCegarLoop]: Abstraction has 1756 states and 2552 transitions. [2022-01-10 20:05:06,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2552 transitions. [2022-01-10 20:05:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 20:05:06,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:06,173 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 20:05:06,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 20:05:06,173 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:06,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:06,174 INFO L85 PathProgramCache]: Analyzing trace with hash 165027875, now seen corresponding path program 1 times [2022-01-10 20:05:06,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:06,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159195926] [2022-01-10 20:05:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:06,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 20:05:06,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:06,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159195926] [2022-01-10 20:05:06,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159195926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:06,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:06,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:06,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633159803] [2022-01-10 20:05:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:06,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:06,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:06,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,218 INFO L87 Difference]: Start difference. First operand 1756 states and 2552 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:06,288 INFO L93 Difference]: Finished difference Result 3124 states and 4454 transitions. [2022-01-10 20:05:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:06,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 59 [2022-01-10 20:05:06,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:06,296 INFO L225 Difference]: With dead ends: 3124 [2022-01-10 20:05:06,296 INFO L226 Difference]: Without dead ends: 2428 [2022-01-10 20:05:06,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,299 INFO L933 BasicCegarLoop]: 1685 mSDtfsCounter, 1641 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:06,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1641 Valid, 1850 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:06,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-01-10 20:05:06,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2424. [2022-01-10 20:05:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2420 states have (on average 1.4206611570247933) internal successors, (3438), 2423 states have internal predecessors, (3438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3438 transitions. [2022-01-10 20:05:06,380 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3438 transitions. Word has length 59 [2022-01-10 20:05:06,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:06,380 INFO L470 AbstractCegarLoop]: Abstraction has 2424 states and 3438 transitions. [2022-01-10 20:05:06,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3438 transitions. [2022-01-10 20:05:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 20:05:06,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:06,382 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, 1] [2022-01-10 20:05:06,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 20:05:06,382 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:06,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2059015169, now seen corresponding path program 1 times [2022-01-10 20:05:06,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:06,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920329972] [2022-01-10 20:05:06,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:06,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:06,423 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:06,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:06,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920329972] [2022-01-10 20:05:06,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920329972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:06,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:06,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:06,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013267397] [2022-01-10 20:05:06,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:06,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:06,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:06,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:06,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,425 INFO L87 Difference]: Start difference. First operand 2424 states and 3438 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:06,534 INFO L93 Difference]: Finished difference Result 5048 states and 7020 transitions. [2022-01-10 20:05:06,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:06,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-10 20:05:06,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:06,545 INFO L225 Difference]: With dead ends: 5048 [2022-01-10 20:05:06,546 INFO L226 Difference]: Without dead ends: 3728 [2022-01-10 20:05:06,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,549 INFO L933 BasicCegarLoop]: 1830 mSDtfsCounter, 146 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:06,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 3502 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2022-01-10 20:05:06,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 3728. [2022-01-10 20:05:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3728 states, 3724 states have (on average 1.387218045112782) internal successors, (5166), 3727 states have internal predecessors, (5166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 5166 transitions. [2022-01-10 20:05:06,705 INFO L78 Accepts]: Start accepts. Automaton has 3728 states and 5166 transitions. Word has length 61 [2022-01-10 20:05:06,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:06,710 INFO L470 AbstractCegarLoop]: Abstraction has 3728 states and 5166 transitions. [2022-01-10 20:05:06,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3728 states and 5166 transitions. [2022-01-10 20:05:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 20:05:06,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:06,717 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, 1, 1, 1] [2022-01-10 20:05:06,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 20:05:06,717 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash -222059118, now seen corresponding path program 1 times [2022-01-10 20:05:06,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:06,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185160468] [2022-01-10 20:05:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:06,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 20:05:06,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:06,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185160468] [2022-01-10 20:05:06,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185160468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:06,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:06,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:06,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240666323] [2022-01-10 20:05:06,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:06,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:06,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:06,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:06,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,817 INFO L87 Difference]: Start difference. First operand 3728 states and 5166 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:06,999 INFO L93 Difference]: Finished difference Result 8808 states and 12050 transitions. [2022-01-10 20:05:06,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:06,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 103 [2022-01-10 20:05:07,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:07,020 INFO L225 Difference]: With dead ends: 8808 [2022-01-10 20:05:07,021 INFO L226 Difference]: Without dead ends: 6268 [2022-01-10 20:05:07,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,030 INFO L933 BasicCegarLoop]: 1717 mSDtfsCounter, 131 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 3356 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 [2022-01-10 20:05:07,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 3356 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:07,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2022-01-10 20:05:07,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 6264. [2022-01-10 20:05:07,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6264 states, 6260 states have (on average 1.3645367412140574) internal successors, (8542), 6263 states have internal predecessors, (8542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6264 states to 6264 states and 8542 transitions. [2022-01-10 20:05:07,253 INFO L78 Accepts]: Start accepts. Automaton has 6264 states and 8542 transitions. Word has length 103 [2022-01-10 20:05:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:07,253 INFO L470 AbstractCegarLoop]: Abstraction has 6264 states and 8542 transitions. [2022-01-10 20:05:07,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 6264 states and 8542 transitions. [2022-01-10 20:05:07,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 20:05:07,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:07,263 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, 1, 1, 1, 1] [2022-01-10 20:05:07,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 20:05:07,263 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1593617468, now seen corresponding path program 1 times [2022-01-10 20:05:07,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:07,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635267436] [2022-01-10 20:05:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:07,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:07,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:07,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635267436] [2022-01-10 20:05:07,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635267436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:07,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:07,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:07,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587272463] [2022-01-10 20:05:07,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:07,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:07,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:07,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:07,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,343 INFO L87 Difference]: Start difference. First operand 6264 states and 8542 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:07,499 INFO L93 Difference]: Finished difference Result 8832 states and 12046 transitions. [2022-01-10 20:05:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:07,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-10 20:05:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:07,502 INFO L225 Difference]: With dead ends: 8832 [2022-01-10 20:05:07,502 INFO L226 Difference]: Without dead ends: 1003 [2022-01-10 20:05:07,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,510 INFO L933 BasicCegarLoop]: 1792 mSDtfsCounter, 112 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:07,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 3447 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-01-10 20:05:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2022-01-10 20:05:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1001 states have (on average 1.4945054945054945) internal successors, (1496), 1002 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1496 transitions. [2022-01-10 20:05:07,529 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1496 transitions. Word has length 104 [2022-01-10 20:05:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:07,529 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1496 transitions. [2022-01-10 20:05:07,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1496 transitions. [2022-01-10 20:05:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:07,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:07,530 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] [2022-01-10 20:05:07,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 20:05:07,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:07,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:07,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1938314496, now seen corresponding path program 1 times [2022-01-10 20:05:07,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:07,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751684772] [2022-01-10 20:05:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:07,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:07,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:07,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751684772] [2022-01-10 20:05:07,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751684772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:07,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:07,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:07,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544387280] [2022-01-10 20:05:07,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:07,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:07,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,570 INFO L87 Difference]: Start difference. First operand 1003 states and 1496 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:07,619 INFO L93 Difference]: Finished difference Result 2812 states and 4181 transitions. [2022-01-10 20:05:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:07,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:07,624 INFO L225 Difference]: With dead ends: 2812 [2022-01-10 20:05:07,624 INFO L226 Difference]: Without dead ends: 1825 [2022-01-10 20:05:07,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,627 INFO L933 BasicCegarLoop]: 1525 mSDtfsCounter, 1383 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:07,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1383 Valid, 2826 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2022-01-10 20:05:07,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1821. [2022-01-10 20:05:07,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4870808136338647) internal successors, (2705), 1820 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2705 transitions. [2022-01-10 20:05:07,685 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2705 transitions. Word has length 121 [2022-01-10 20:05:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:07,685 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2705 transitions. [2022-01-10 20:05:07,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2705 transitions. [2022-01-10 20:05:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:07,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:07,686 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] [2022-01-10 20:05:07,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 20:05:07,686 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1590480416, now seen corresponding path program 1 times [2022-01-10 20:05:07,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697889113] [2022-01-10 20:05:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:07,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:07,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:07,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697889113] [2022-01-10 20:05:07,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697889113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:07,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:07,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:07,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465617591] [2022-01-10 20:05:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:07,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:07,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:07,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,732 INFO L87 Difference]: Start difference. First operand 1821 states and 2705 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:07,778 INFO L93 Difference]: Finished difference Result 3625 states and 5383 transitions. [2022-01-10 20:05:07,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:07,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:07,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:07,784 INFO L225 Difference]: With dead ends: 3625 [2022-01-10 20:05:07,784 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:07,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,789 INFO L933 BasicCegarLoop]: 1484 mSDtfsCounter, 1473 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:07,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1473 Valid, 1484 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:07,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:07,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4826827927432655) internal successors, (2697), 1820 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2697 transitions. [2022-01-10 20:05:07,833 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2697 transitions. Word has length 121 [2022-01-10 20:05:07,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:07,836 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2697 transitions. [2022-01-10 20:05:07,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2697 transitions. [2022-01-10 20:05:07,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:07,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:07,837 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] [2022-01-10 20:05:07,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 20:05:07,837 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:07,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:07,838 INFO L85 PathProgramCache]: Analyzing trace with hash -360402688, now seen corresponding path program 1 times [2022-01-10 20:05:07,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:07,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773150852] [2022-01-10 20:05:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:07,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:07,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:07,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:07,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773150852] [2022-01-10 20:05:07,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773150852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:07,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:07,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:07,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177585069] [2022-01-10 20:05:07,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:07,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:07,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:07,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:07,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,880 INFO L87 Difference]: Start difference. First operand 1821 states and 2697 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:07,931 INFO L93 Difference]: Finished difference Result 3624 states and 5366 transitions. [2022-01-10 20:05:07,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:07,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:07,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:07,936 INFO L225 Difference]: With dead ends: 3624 [2022-01-10 20:05:07,936 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:07,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,939 INFO L933 BasicCegarLoop]: 1479 mSDtfsCounter, 1467 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:07,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 1479 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:07,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4782847718526664) internal successors, (2689), 1820 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2689 transitions. [2022-01-10 20:05:07,998 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2689 transitions. Word has length 121 [2022-01-10 20:05:07,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:07,998 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2689 transitions. [2022-01-10 20:05:07,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2689 transitions. [2022-01-10 20:05:07,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:07,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:07,999 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] [2022-01-10 20:05:07,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 20:05:08,000 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:08,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:08,000 INFO L85 PathProgramCache]: Analyzing trace with hash 685044256, now seen corresponding path program 1 times [2022-01-10 20:05:08,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:08,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702189904] [2022-01-10 20:05:08,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:08,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:08,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:08,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702189904] [2022-01-10 20:05:08,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702189904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:08,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:08,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:08,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120452220] [2022-01-10 20:05:08,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:08,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:08,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:08,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,038 INFO L87 Difference]: Start difference. First operand 1821 states and 2689 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:08,087 INFO L93 Difference]: Finished difference Result 3623 states and 5349 transitions. [2022-01-10 20:05:08,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:08,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:08,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:08,099 INFO L225 Difference]: With dead ends: 3623 [2022-01-10 20:05:08,099 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:08,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,102 INFO L933 BasicCegarLoop]: 1474 mSDtfsCounter, 1461 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:08,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1461 Valid, 1474 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:08,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.473886750962067) internal successors, (2681), 1820 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2681 transitions. [2022-01-10 20:05:08,169 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2681 transitions. Word has length 121 [2022-01-10 20:05:08,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:08,170 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2681 transitions. [2022-01-10 20:05:08,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2681 transitions. [2022-01-10 20:05:08,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:08,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:08,171 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] [2022-01-10 20:05:08,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 20:05:08,171 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:08,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1827147008, now seen corresponding path program 1 times [2022-01-10 20:05:08,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:08,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350848311] [2022-01-10 20:05:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:08,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:08,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:08,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350848311] [2022-01-10 20:05:08,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350848311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:08,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:08,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:08,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447759812] [2022-01-10 20:05:08,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:08,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:08,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:08,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:08,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,208 INFO L87 Difference]: Start difference. First operand 1821 states and 2681 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:08,261 INFO L93 Difference]: Finished difference Result 3622 states and 5332 transitions. [2022-01-10 20:05:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:08,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:08,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:08,270 INFO L225 Difference]: With dead ends: 3622 [2022-01-10 20:05:08,270 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:08,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,273 INFO L933 BasicCegarLoop]: 1469 mSDtfsCounter, 1455 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:08,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 1469 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:08,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:08,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4694887300714679) internal successors, (2673), 1820 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2673 transitions. [2022-01-10 20:05:08,320 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2673 transitions. Word has length 121 [2022-01-10 20:05:08,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:08,321 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2673 transitions. [2022-01-10 20:05:08,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2673 transitions. [2022-01-10 20:05:08,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:08,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:08,322 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] [2022-01-10 20:05:08,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 20:05:08,322 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:08,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:08,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1586894368, now seen corresponding path program 1 times [2022-01-10 20:05:08,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:08,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142774983] [2022-01-10 20:05:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:08,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:08,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:08,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142774983] [2022-01-10 20:05:08,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142774983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:08,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:08,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:08,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400138927] [2022-01-10 20:05:08,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:08,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:08,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,368 INFO L87 Difference]: Start difference. First operand 1821 states and 2673 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:08,428 INFO L93 Difference]: Finished difference Result 3621 states and 5315 transitions. [2022-01-10 20:05:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:08,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:08,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:08,437 INFO L225 Difference]: With dead ends: 3621 [2022-01-10 20:05:08,437 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:08,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,441 INFO L933 BasicCegarLoop]: 1464 mSDtfsCounter, 1449 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:08,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 1464 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:08,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4650907091808687) internal successors, (2665), 1820 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2665 transitions. [2022-01-10 20:05:08,492 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2665 transitions. Word has length 121 [2022-01-10 20:05:08,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:08,493 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2665 transitions. [2022-01-10 20:05:08,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2665 transitions. [2022-01-10 20:05:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:08,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:08,494 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] [2022-01-10 20:05:08,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 20:05:08,494 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1468897024, now seen corresponding path program 1 times [2022-01-10 20:05:08,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:08,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637816625] [2022-01-10 20:05:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:08,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:08,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:08,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637816625] [2022-01-10 20:05:08,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637816625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:08,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:08,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:08,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464722790] [2022-01-10 20:05:08,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:08,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:08,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:08,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,530 INFO L87 Difference]: Start difference. First operand 1821 states and 2665 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:08,604 INFO L93 Difference]: Finished difference Result 3620 states and 5298 transitions. [2022-01-10 20:05:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:08,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:08,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:08,608 INFO L225 Difference]: With dead ends: 3620 [2022-01-10 20:05:08,608 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:08,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,611 INFO L933 BasicCegarLoop]: 1459 mSDtfsCounter, 1443 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:08,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 1459 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:08,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:08,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4606926882902693) internal successors, (2657), 1820 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2657 transitions. [2022-01-10 20:05:08,681 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2657 transitions. Word has length 121 [2022-01-10 20:05:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:08,681 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2657 transitions. [2022-01-10 20:05:08,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2657 transitions. [2022-01-10 20:05:08,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:08,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:08,682 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] [2022-01-10 20:05:08,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 20:05:08,683 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:08,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1706018272, now seen corresponding path program 1 times [2022-01-10 20:05:08,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:08,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038150182] [2022-01-10 20:05:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:08,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:08,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:08,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038150182] [2022-01-10 20:05:08,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038150182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:08,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:08,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:08,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42886184] [2022-01-10 20:05:08,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:08,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:08,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:08,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:08,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,717 INFO L87 Difference]: Start difference. First operand 1821 states and 2657 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:08,781 INFO L93 Difference]: Finished difference Result 3619 states and 5281 transitions. [2022-01-10 20:05:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:08,784 INFO L225 Difference]: With dead ends: 3619 [2022-01-10 20:05:08,784 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:08,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,789 INFO L933 BasicCegarLoop]: 1454 mSDtfsCounter, 1437 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:08,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 1454 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:08,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:08,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4562946673996702) internal successors, (2649), 1820 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2649 transitions. [2022-01-10 20:05:08,845 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2649 transitions. Word has length 121 [2022-01-10 20:05:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:08,845 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2649 transitions. [2022-01-10 20:05:08,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2649 transitions. [2022-01-10 20:05:08,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:08,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:08,846 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] [2022-01-10 20:05:08,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 20:05:08,846 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:08,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:08,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1159478016, now seen corresponding path program 1 times [2022-01-10 20:05:08,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:08,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003309310] [2022-01-10 20:05:08,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:08,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:08,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:08,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003309310] [2022-01-10 20:05:08,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003309310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:08,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:08,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:08,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530568321] [2022-01-10 20:05:08,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:08,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:08,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:08,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:08,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,884 INFO L87 Difference]: Start difference. First operand 1821 states and 2649 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:08,943 INFO L93 Difference]: Finished difference Result 3618 states and 5264 transitions. [2022-01-10 20:05:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:08,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:08,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:08,947 INFO L225 Difference]: With dead ends: 3618 [2022-01-10 20:05:08,947 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:08,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,950 INFO L933 BasicCegarLoop]: 1449 mSDtfsCounter, 1431 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:08,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1431 Valid, 1449 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:08,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:09,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:09,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.451896646509071) internal successors, (2641), 1820 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2641 transitions. [2022-01-10 20:05:09,037 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2641 transitions. Word has length 121 [2022-01-10 20:05:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:09,037 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2641 transitions. [2022-01-10 20:05:09,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2641 transitions. [2022-01-10 20:05:09,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:09,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:09,038 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] [2022-01-10 20:05:09,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 20:05:09,038 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:09,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 105078304, now seen corresponding path program 1 times [2022-01-10 20:05:09,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:09,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453096010] [2022-01-10 20:05:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:09,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:09,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:09,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453096010] [2022-01-10 20:05:09,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453096010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:09,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:09,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:09,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245734205] [2022-01-10 20:05:09,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:09,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:09,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:09,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,079 INFO L87 Difference]: Start difference. First operand 1821 states and 2641 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:09,162 INFO L93 Difference]: Finished difference Result 3617 states and 5247 transitions. [2022-01-10 20:05:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:09,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:09,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:09,166 INFO L225 Difference]: With dead ends: 3617 [2022-01-10 20:05:09,166 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:09,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,169 INFO L933 BasicCegarLoop]: 1422 mSDtfsCounter, 1322 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:09,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1322 Valid, 1510 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:09,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4365035733919735) internal successors, (2613), 1820 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2613 transitions. [2022-01-10 20:05:09,229 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2613 transitions. Word has length 121 [2022-01-10 20:05:09,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:09,230 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2613 transitions. [2022-01-10 20:05:09,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2613 transitions. [2022-01-10 20:05:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:09,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:09,230 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] [2022-01-10 20:05:09,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 20:05:09,231 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:09,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash 734377855, now seen corresponding path program 1 times [2022-01-10 20:05:09,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:09,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637713689] [2022-01-10 20:05:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:09,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:09,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:09,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637713689] [2022-01-10 20:05:09,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637713689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:09,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:09,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:09,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855065667] [2022-01-10 20:05:09,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:09,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:09,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:09,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,267 INFO L87 Difference]: Start difference. First operand 1821 states and 2613 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:09,346 INFO L93 Difference]: Finished difference Result 3616 states and 5190 transitions. [2022-01-10 20:05:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:09,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:09,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:09,350 INFO L225 Difference]: With dead ends: 3616 [2022-01-10 20:05:09,350 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:09,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,352 INFO L933 BasicCegarLoop]: 1406 mSDtfsCounter, 1306 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:09,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1306 Valid, 1493 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:09,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:09,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4211105002748763) internal successors, (2585), 1820 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2585 transitions. [2022-01-10 20:05:09,410 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2585 transitions. Word has length 121 [2022-01-10 20:05:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:09,410 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2585 transitions. [2022-01-10 20:05:09,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2585 transitions. [2022-01-10 20:05:09,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:09,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:09,411 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] [2022-01-10 20:05:09,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 20:05:09,411 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash -220644770, now seen corresponding path program 1 times [2022-01-10 20:05:09,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:09,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79595527] [2022-01-10 20:05:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:09,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:09,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:09,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79595527] [2022-01-10 20:05:09,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79595527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:09,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:09,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:09,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521921571] [2022-01-10 20:05:09,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:09,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:09,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:09,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:09,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,456 INFO L87 Difference]: Start difference. First operand 1821 states and 2585 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:09,546 INFO L93 Difference]: Finished difference Result 3615 states and 5133 transitions. [2022-01-10 20:05:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:09,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:09,550 INFO L225 Difference]: With dead ends: 3615 [2022-01-10 20:05:09,550 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:09,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,552 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 1290 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:09,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1290 Valid, 1476 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:09,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.405717427157779) internal successors, (2557), 1820 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2557 transitions. [2022-01-10 20:05:09,613 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2557 transitions. Word has length 121 [2022-01-10 20:05:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:09,613 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2557 transitions. [2022-01-10 20:05:09,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2557 transitions. [2022-01-10 20:05:09,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:09,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:09,614 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] [2022-01-10 20:05:09,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 20:05:09,614 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)] === [2022-01-10 20:05:09,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:09,615 INFO L85 PathProgramCache]: Analyzing trace with hash 171266621, now seen corresponding path program 1 times [2022-01-10 20:05:09,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:09,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447950386] [2022-01-10 20:05:09,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:09,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:09,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:09,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447950386] [2022-01-10 20:05:09,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447950386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:09,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:09,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:09,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009502931] [2022-01-10 20:05:09,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:09,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:09,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:09,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,647 INFO L87 Difference]: Start difference. First operand 1821 states and 2557 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:09,727 INFO L93 Difference]: Finished difference Result 3614 states and 5076 transitions. [2022-01-10 20:05:09,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:09,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:09,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:09,731 INFO L225 Difference]: With dead ends: 3614 [2022-01-10 20:05:09,731 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:09,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,735 INFO L933 BasicCegarLoop]: 1374 mSDtfsCounter, 1274 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:09,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1274 Valid, 1459 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:09,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:09,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3903243540406818) internal successors, (2529), 1820 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2529 transitions. [2022-01-10 20:05:09,800 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2529 transitions. Word has length 121 [2022-01-10 20:05:09,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:09,800 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2529 transitions. [2022-01-10 20:05:09,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2529 transitions. [2022-01-10 20:05:09,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:09,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:09,801 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] [2022-01-10 20:05:09,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 20:05:09,801 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)] === [2022-01-10 20:05:09,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash 280757148, now seen corresponding path program 1 times [2022-01-10 20:05:09,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:09,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59485615] [2022-01-10 20:05:09,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:09,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:09,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:09,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59485615] [2022-01-10 20:05:09,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59485615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:09,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:09,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:09,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013676924] [2022-01-10 20:05:09,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:09,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:09,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:09,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:09,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,832 INFO L87 Difference]: Start difference. First operand 1821 states and 2529 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:09,922 INFO L93 Difference]: Finished difference Result 3613 states and 5019 transitions. [2022-01-10 20:05:09,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:09,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:09,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:09,925 INFO L225 Difference]: With dead ends: 3613 [2022-01-10 20:05:09,925 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:09,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,928 INFO L933 BasicCegarLoop]: 1358 mSDtfsCounter, 1258 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:09,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1258 Valid, 1442 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:09,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:09,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3749312809235843) internal successors, (2501), 1820 states have internal predecessors, (2501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2501 transitions. [2022-01-10 20:05:09,993 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2501 transitions. Word has length 121 [2022-01-10 20:05:09,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:09,993 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2501 transitions. [2022-01-10 20:05:09,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2501 transitions. [2022-01-10 20:05:09,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:09,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:09,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:09,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 20:05:09,994 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)] === [2022-01-10 20:05:09,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:09,994 INFO L85 PathProgramCache]: Analyzing trace with hash -99247621, now seen corresponding path program 1 times [2022-01-10 20:05:09,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:09,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583192572] [2022-01-10 20:05:09,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:09,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:10,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:10,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583192572] [2022-01-10 20:05:10,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583192572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:10,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:10,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:10,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367555218] [2022-01-10 20:05:10,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:10,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:10,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:10,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:10,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,036 INFO L87 Difference]: Start difference. First operand 1821 states and 2501 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:10,123 INFO L93 Difference]: Finished difference Result 3612 states and 4962 transitions. [2022-01-10 20:05:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:10,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:10,126 INFO L225 Difference]: With dead ends: 3612 [2022-01-10 20:05:10,127 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:10,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,133 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 1242 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:10,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1242 Valid, 1425 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:10,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.359538207806487) internal successors, (2473), 1820 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2473 transitions. [2022-01-10 20:05:10,202 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2473 transitions. Word has length 121 [2022-01-10 20:05:10,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:10,202 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2473 transitions. [2022-01-10 20:05:10,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2473 transitions. [2022-01-10 20:05:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:10,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:10,204 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] [2022-01-10 20:05:10,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 20:05:10,204 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:10,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:10,204 INFO L85 PathProgramCache]: Analyzing trace with hash -286836262, now seen corresponding path program 1 times [2022-01-10 20:05:10,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:10,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702495329] [2022-01-10 20:05:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:10,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:10,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:10,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702495329] [2022-01-10 20:05:10,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702495329] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:10,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:10,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:10,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901212033] [2022-01-10 20:05:10,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:10,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:10,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:10,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:10,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,232 INFO L87 Difference]: Start difference. First operand 1821 states and 2473 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:10,352 INFO L93 Difference]: Finished difference Result 3611 states and 4905 transitions. [2022-01-10 20:05:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:10,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:10,356 INFO L225 Difference]: With dead ends: 3611 [2022-01-10 20:05:10,356 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:10,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,359 INFO L933 BasicCegarLoop]: 1326 mSDtfsCounter, 1226 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:10,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 1408 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:10,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:10,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3441451346893898) internal successors, (2445), 1820 states have internal predecessors, (2445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2445 transitions. [2022-01-10 20:05:10,435 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2445 transitions. Word has length 121 [2022-01-10 20:05:10,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:10,435 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2445 transitions. [2022-01-10 20:05:10,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2445 transitions. [2022-01-10 20:05:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:10,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:10,436 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] [2022-01-10 20:05:10,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 20:05:10,436 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1602089287, now seen corresponding path program 1 times [2022-01-10 20:05:10,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:10,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007821142] [2022-01-10 20:05:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:10,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:10,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:10,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007821142] [2022-01-10 20:05:10,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007821142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:10,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:10,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:10,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579229771] [2022-01-10 20:05:10,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:10,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:10,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:10,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:10,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,467 INFO L87 Difference]: Start difference. First operand 1821 states and 2445 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:10,558 INFO L93 Difference]: Finished difference Result 3610 states and 4848 transitions. [2022-01-10 20:05:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:10,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:10,561 INFO L225 Difference]: With dead ends: 3610 [2022-01-10 20:05:10,561 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:10,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,564 INFO L933 BasicCegarLoop]: 1310 mSDtfsCounter, 1210 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:10,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 1391 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:10,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:10,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3287520615722925) internal successors, (2417), 1820 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2417 transitions. [2022-01-10 20:05:10,634 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2417 transitions. Word has length 121 [2022-01-10 20:05:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:10,634 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2417 transitions. [2022-01-10 20:05:10,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2417 transitions. [2022-01-10 20:05:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:10,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:10,635 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] [2022-01-10 20:05:10,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 20:05:10,635 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:10,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:10,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1234591000, now seen corresponding path program 1 times [2022-01-10 20:05:10,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:10,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584048320] [2022-01-10 20:05:10,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:10,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:10,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:10,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584048320] [2022-01-10 20:05:10,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584048320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:10,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:10,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:10,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824114825] [2022-01-10 20:05:10,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:10,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:10,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:10,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:10,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,669 INFO L87 Difference]: Start difference. First operand 1821 states and 2417 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:10,777 INFO L93 Difference]: Finished difference Result 3609 states and 4791 transitions. [2022-01-10 20:05:10,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:10,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:10,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:10,780 INFO L225 Difference]: With dead ends: 3609 [2022-01-10 20:05:10,780 INFO L226 Difference]: Without dead ends: 1821 [2022-01-10 20:05:10,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,783 INFO L933 BasicCegarLoop]: 1294 mSDtfsCounter, 1194 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:10,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 1374 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-10 20:05:10,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-10 20:05:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.313358988455195) internal successors, (2389), 1820 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2389 transitions. [2022-01-10 20:05:10,853 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2389 transitions. Word has length 121 [2022-01-10 20:05:10,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:10,853 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2389 transitions. [2022-01-10 20:05:10,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2389 transitions. [2022-01-10 20:05:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:10,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:10,854 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] [2022-01-10 20:05:10,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 20:05:10,854 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:10,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1613352841, now seen corresponding path program 1 times [2022-01-10 20:05:10,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:10,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935801325] [2022-01-10 20:05:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:10,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:10,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:10,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935801325] [2022-01-10 20:05:10,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935801325] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:10,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:10,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:10,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267741516] [2022-01-10 20:05:10,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:10,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:10,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:10,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:10,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:10,912 INFO L87 Difference]: Start difference. First operand 1821 states and 2389 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:11,110 INFO L93 Difference]: Finished difference Result 4292 states and 5689 transitions. [2022-01-10 20:05:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:11,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:11,114 INFO L225 Difference]: With dead ends: 4292 [2022-01-10 20:05:11,114 INFO L226 Difference]: Without dead ends: 2511 [2022-01-10 20:05:11,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:05:11,117 INFO L933 BasicCegarLoop]: 1414 mSDtfsCounter, 3704 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3704 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:11,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3704 Valid, 2830 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:11,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-01-10 20:05:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 1827. [2022-01-10 20:05:11,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1825 states have (on average 1.3013698630136987) internal successors, (2375), 1826 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2375 transitions. [2022-01-10 20:05:11,252 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2375 transitions. Word has length 121 [2022-01-10 20:05:11,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:11,252 INFO L470 AbstractCegarLoop]: Abstraction has 1827 states and 2375 transitions. [2022-01-10 20:05:11,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2375 transitions. [2022-01-10 20:05:11,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:11,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:11,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:11,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 20:05:11,253 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:11,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:11,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1196558904, now seen corresponding path program 1 times [2022-01-10 20:05:11,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:11,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92098967] [2022-01-10 20:05:11,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:11,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:11,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:11,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92098967] [2022-01-10 20:05:11,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92098967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:11,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:11,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:11,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67039192] [2022-01-10 20:05:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:11,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:11,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:11,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:11,288 INFO L87 Difference]: Start difference. First operand 1827 states and 2375 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:11,485 INFO L93 Difference]: Finished difference Result 4520 states and 5924 transitions. [2022-01-10 20:05:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:11,491 INFO L225 Difference]: With dead ends: 4520 [2022-01-10 20:05:11,491 INFO L226 Difference]: Without dead ends: 2747 [2022-01-10 20:05:11,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:05:11,494 INFO L933 BasicCegarLoop]: 1367 mSDtfsCounter, 3430 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3430 SdHoareTripleChecker+Valid, 3300 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:11,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3430 Valid, 3300 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:11,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2022-01-10 20:05:11,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 1833. [2022-01-10 20:05:11,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1831 states have (on average 1.2894593118514472) internal successors, (2361), 1832 states have internal predecessors, (2361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2361 transitions. [2022-01-10 20:05:11,585 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2361 transitions. Word has length 121 [2022-01-10 20:05:11,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:11,586 INFO L470 AbstractCegarLoop]: Abstraction has 1833 states and 2361 transitions. [2022-01-10 20:05:11,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2361 transitions. [2022-01-10 20:05:11,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:11,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:11,586 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] [2022-01-10 20:05:11,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 20:05:11,587 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:11,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:11,587 INFO L85 PathProgramCache]: Analyzing trace with hash 712883577, now seen corresponding path program 1 times [2022-01-10 20:05:11,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:11,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716077898] [2022-01-10 20:05:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:11,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:11,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:11,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716077898] [2022-01-10 20:05:11,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716077898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:11,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:11,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:11,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187469258] [2022-01-10 20:05:11,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:11,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:11,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:11,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:11,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:11,632 INFO L87 Difference]: Start difference. First operand 1833 states and 2361 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:11,864 INFO L93 Difference]: Finished difference Result 4643 states and 6022 transitions. [2022-01-10 20:05:11,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:11,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:11,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:11,869 INFO L225 Difference]: With dead ends: 4643 [2022-01-10 20:05:11,869 INFO L226 Difference]: Without dead ends: 2871 [2022-01-10 20:05:11,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:05:11,872 INFO L933 BasicCegarLoop]: 1338 mSDtfsCounter, 3283 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3283 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:11,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3283 Valid, 3504 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2022-01-10 20:05:11,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1839. [2022-01-10 20:05:11,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1837 states have (on average 1.2776265650517147) internal successors, (2347), 1838 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2347 transitions. [2022-01-10 20:05:11,976 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2347 transitions. Word has length 121 [2022-01-10 20:05:11,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:11,976 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 2347 transitions. [2022-01-10 20:05:11,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2347 transitions. [2022-01-10 20:05:11,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 20:05:11,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:11,977 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] [2022-01-10 20:05:11,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 20:05:11,977 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:11,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:11,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2017277306, now seen corresponding path program 1 times [2022-01-10 20:05:11,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:11,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096938395] [2022-01-10 20:05:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:11,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:12,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:12,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096938395] [2022-01-10 20:05:12,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096938395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:12,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:12,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:12,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171712745] [2022-01-10 20:05:12,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:12,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:12,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:12,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:12,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:12,014 INFO L87 Difference]: Start difference. First operand 1839 states and 2347 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:12,277 INFO L93 Difference]: Finished difference Result 5318 states and 6792 transitions. [2022-01-10 20:05:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:12,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-10 20:05:12,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:12,283 INFO L225 Difference]: With dead ends: 5318 [2022-01-10 20:05:12,283 INFO L226 Difference]: Without dead ends: 3514 [2022-01-10 20:05:12,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:12,285 INFO L933 BasicCegarLoop]: 1262 mSDtfsCounter, 1115 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:12,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 2372 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:12,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2022-01-10 20:05:12,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3390. [2022-01-10 20:05:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 3388 states have (on average 1.2727272727272727) internal successors, (4312), 3389 states have internal predecessors, (4312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:12,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 4312 transitions. [2022-01-10 20:05:12,472 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 4312 transitions. Word has length 121 [2022-01-10 20:05:12,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:12,473 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 4312 transitions. [2022-01-10 20:05:12,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:12,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 4312 transitions. [2022-01-10 20:05:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-10 20:05:12,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:12,475 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] [2022-01-10 20:05:12,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 20:05:12,475 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:12,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:12,475 INFO L85 PathProgramCache]: Analyzing trace with hash 208940497, now seen corresponding path program 1 times [2022-01-10 20:05:12,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:12,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813291533] [2022-01-10 20:05:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:12,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:12,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:12,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:12,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813291533] [2022-01-10 20:05:12,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813291533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:12,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:12,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:12,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064868822] [2022-01-10 20:05:12,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:12,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:12,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:12,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:12,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:12,515 INFO L87 Difference]: Start difference. First operand 3390 states and 4312 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:12,914 INFO L93 Difference]: Finished difference Result 9935 states and 12660 transitions. [2022-01-10 20:05:12,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:12,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-10 20:05:12,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:12,925 INFO L225 Difference]: With dead ends: 9935 [2022-01-10 20:05:12,925 INFO L226 Difference]: Without dead ends: 6586 [2022-01-10 20:05:12,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:12,931 INFO L933 BasicCegarLoop]: 1259 mSDtfsCounter, 1150 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:12,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 2369 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-01-10 20:05:13,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 6342. [2022-01-10 20:05:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6342 states, 6340 states have (on average 1.2706624605678234) internal successors, (8056), 6341 states have internal predecessors, (8056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:13,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6342 states to 6342 states and 8056 transitions. [2022-01-10 20:05:13,298 INFO L78 Accepts]: Start accepts. Automaton has 6342 states and 8056 transitions. Word has length 196 [2022-01-10 20:05:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:13,299 INFO L470 AbstractCegarLoop]: Abstraction has 6342 states and 8056 transitions. [2022-01-10 20:05:13,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:13,299 INFO L276 IsEmpty]: Start isEmpty. Operand 6342 states and 8056 transitions. [2022-01-10 20:05:13,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-10 20:05:13,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:13,302 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] [2022-01-10 20:05:13,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 20:05:13,303 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:13,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:13,303 INFO L85 PathProgramCache]: Analyzing trace with hash 670543218, now seen corresponding path program 1 times [2022-01-10 20:05:13,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:13,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594568404] [2022-01-10 20:05:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:13,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:13,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:13,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594568404] [2022-01-10 20:05:13,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594568404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:13,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:13,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:13,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226110786] [2022-01-10 20:05:13,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:13,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:13,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:13,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:13,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:13,347 INFO L87 Difference]: Start difference. First operand 6342 states and 8056 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:14,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:14,086 INFO L93 Difference]: Finished difference Result 18655 states and 23575 transitions. [2022-01-10 20:05:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:14,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-10 20:05:14,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:14,103 INFO L225 Difference]: With dead ends: 18655 [2022-01-10 20:05:14,104 INFO L226 Difference]: Without dead ends: 12427 [2022-01-10 20:05:14,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:14,112 INFO L933 BasicCegarLoop]: 1495 mSDtfsCounter, 1144 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:14,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 2736 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12427 states. [2022-01-10 20:05:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12427 to 12199. [2022-01-10 20:05:14,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12199 states, 12197 states have (on average 1.257768303681233) internal successors, (15341), 12198 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:14,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12199 states to 12199 states and 15341 transitions. [2022-01-10 20:05:14,835 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 15341 transitions. Word has length 196 [2022-01-10 20:05:14,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:14,836 INFO L470 AbstractCegarLoop]: Abstraction has 12199 states and 15341 transitions. [2022-01-10 20:05:14,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 15341 transitions. [2022-01-10 20:05:14,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-10 20:05:14,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:14,842 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] [2022-01-10 20:05:14,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 20:05:14,842 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1132375025, now seen corresponding path program 1 times [2022-01-10 20:05:14,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:14,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384988450] [2022-01-10 20:05:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:14,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:14,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:14,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384988450] [2022-01-10 20:05:14,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384988450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:14,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:14,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:14,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335899535] [2022-01-10 20:05:14,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:14,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:14,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:14,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:14,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:14,872 INFO L87 Difference]: Start difference. First operand 12199 states and 15341 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:15,512 INFO L93 Difference]: Finished difference Result 24246 states and 30500 transitions. [2022-01-10 20:05:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:15,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 196 [2022-01-10 20:05:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:15,529 INFO L225 Difference]: With dead ends: 24246 [2022-01-10 20:05:15,529 INFO L226 Difference]: Without dead ends: 12092 [2022-01-10 20:05:15,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:15,583 INFO L933 BasicCegarLoop]: 1271 mSDtfsCounter, 1266 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:15,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 1272 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:15,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12092 states. [2022-01-10 20:05:16,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12092 to 12092. [2022-01-10 20:05:16,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12092 states, 12090 states have (on average 1.2583126550868486) internal successors, (15213), 12091 states have internal predecessors, (15213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12092 states to 12092 states and 15213 transitions. [2022-01-10 20:05:16,332 INFO L78 Accepts]: Start accepts. Automaton has 12092 states and 15213 transitions. Word has length 196 [2022-01-10 20:05:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:16,332 INFO L470 AbstractCegarLoop]: Abstraction has 12092 states and 15213 transitions. [2022-01-10 20:05:16,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 12092 states and 15213 transitions. [2022-01-10 20:05:16,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 20:05:16,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:16,338 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] [2022-01-10 20:05:16,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 20:05:16,339 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:16,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:16,339 INFO L85 PathProgramCache]: Analyzing trace with hash 507048425, now seen corresponding path program 1 times [2022-01-10 20:05:16,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:16,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962708795] [2022-01-10 20:05:16,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:16,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:16,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:16,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962708795] [2022-01-10 20:05:16,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962708795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:16,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:16,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:16,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42248033] [2022-01-10 20:05:16,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:16,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:16,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:16,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:16,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:16,392 INFO L87 Difference]: Start difference. First operand 12092 states and 15213 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:17,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:17,758 INFO L93 Difference]: Finished difference Result 34842 states and 43734 transitions. [2022-01-10 20:05:17,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:17,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 197 [2022-01-10 20:05:17,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:17,787 INFO L225 Difference]: With dead ends: 34842 [2022-01-10 20:05:17,787 INFO L226 Difference]: Without dead ends: 22864 [2022-01-10 20:05:17,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:17,802 INFO L933 BasicCegarLoop]: 1886 mSDtfsCounter, 965 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:17,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 3136 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22864 states. [2022-01-10 20:05:19,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22864 to 22860. [2022-01-10 20:05:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22860 states, 22858 states have (on average 1.2518155569166156) internal successors, (28614), 22859 states have internal predecessors, (28614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:19,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22860 states to 22860 states and 28614 transitions. [2022-01-10 20:05:19,137 INFO L78 Accepts]: Start accepts. Automaton has 22860 states and 28614 transitions. Word has length 197 [2022-01-10 20:05:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:19,137 INFO L470 AbstractCegarLoop]: Abstraction has 22860 states and 28614 transitions. [2022-01-10 20:05:19,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:19,137 INFO L276 IsEmpty]: Start isEmpty. Operand 22860 states and 28614 transitions. [2022-01-10 20:05:19,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 20:05:19,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:19,146 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] [2022-01-10 20:05:19,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 20:05:19,146 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:19,147 INFO L85 PathProgramCache]: Analyzing trace with hash 270430600, now seen corresponding path program 1 times [2022-01-10 20:05:19,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:19,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447717180] [2022-01-10 20:05:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:19,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:19,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:19,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447717180] [2022-01-10 20:05:19,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447717180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:19,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:19,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:19,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412443771] [2022-01-10 20:05:19,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:19,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:19,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:19,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:19,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:19,182 INFO L87 Difference]: Start difference. First operand 22860 states and 28614 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:20,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:20,682 INFO L93 Difference]: Finished difference Result 45500 states and 56968 transitions. [2022-01-10 20:05:20,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:20,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 197 [2022-01-10 20:05:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:20,715 INFO L225 Difference]: With dead ends: 45500 [2022-01-10 20:05:20,715 INFO L226 Difference]: Without dead ends: 22754 [2022-01-10 20:05:20,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:20,738 INFO L933 BasicCegarLoop]: 1270 mSDtfsCounter, 1264 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:20,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 1271 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22754 states. [2022-01-10 20:05:22,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22754 to 22754. [2022-01-10 20:05:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22754 states, 22752 states have (on average 1.2521097046413503) internal successors, (28488), 22753 states have internal predecessors, (28488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22754 states to 22754 states and 28488 transitions. [2022-01-10 20:05:22,149 INFO L78 Accepts]: Start accepts. Automaton has 22754 states and 28488 transitions. Word has length 197 [2022-01-10 20:05:22,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:22,149 INFO L470 AbstractCegarLoop]: Abstraction has 22754 states and 28488 transitions. [2022-01-10 20:05:22,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 22754 states and 28488 transitions. [2022-01-10 20:05:22,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-10 20:05:22,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:22,157 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] [2022-01-10 20:05:22,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 20:05:22,158 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:22,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:22,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1442971391, now seen corresponding path program 1 times [2022-01-10 20:05:22,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:22,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170407135] [2022-01-10 20:05:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:22,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:22,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:22,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:22,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170407135] [2022-01-10 20:05:22,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170407135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:22,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:22,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:22,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794804926] [2022-01-10 20:05:22,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:22,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:22,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:22,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:22,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:22,205 INFO L87 Difference]: Start difference. First operand 22754 states and 28488 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:24,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:24,600 INFO L93 Difference]: Finished difference Result 65779 states and 82263 transitions. [2022-01-10 20:05:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2022-01-10 20:05:24,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:24,661 INFO L225 Difference]: With dead ends: 65779 [2022-01-10 20:05:24,661 INFO L226 Difference]: Without dead ends: 43139 [2022-01-10 20:05:24,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:24,682 INFO L933 BasicCegarLoop]: 1855 mSDtfsCounter, 970 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:24,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 3103 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43139 states. [2022-01-10 20:05:27,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43139 to 43135. [2022-01-10 20:05:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43135 states, 43133 states have (on average 1.2484872371502098) internal successors, (53851), 43134 states have internal predecessors, (53851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43135 states to 43135 states and 53851 transitions. [2022-01-10 20:05:27,363 INFO L78 Accepts]: Start accepts. Automaton has 43135 states and 53851 transitions. Word has length 198 [2022-01-10 20:05:27,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:27,363 INFO L470 AbstractCegarLoop]: Abstraction has 43135 states and 53851 transitions. [2022-01-10 20:05:27,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,363 INFO L276 IsEmpty]: Start isEmpty. Operand 43135 states and 53851 transitions. [2022-01-10 20:05:27,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-10 20:05:27,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:27,378 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] [2022-01-10 20:05:27,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 20:05:27,378 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:27,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:27,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1206353566, now seen corresponding path program 1 times [2022-01-10 20:05:27,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:27,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574942254] [2022-01-10 20:05:27,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:27,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:27,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:27,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574942254] [2022-01-10 20:05:27,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574942254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:27,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:27,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:27,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009500074] [2022-01-10 20:05:27,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:27,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:27,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:27,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:27,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:27,593 INFO L87 Difference]: Start difference. First operand 43135 states and 53851 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:30,277 INFO L93 Difference]: Finished difference Result 86051 states and 107445 transitions. [2022-01-10 20:05:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:30,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 198 [2022-01-10 20:05:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:30,334 INFO L225 Difference]: With dead ends: 86051 [2022-01-10 20:05:30,335 INFO L226 Difference]: Without dead ends: 43030 [2022-01-10 20:05:30,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:30,359 INFO L933 BasicCegarLoop]: 1269 mSDtfsCounter, 1262 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:30,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 1270 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:30,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43030 states. [2022-01-10 20:05:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43030 to 43030. [2022-01-10 20:05:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43030 states, 43028 states have (on average 1.2486520405317467) internal successors, (53727), 43029 states have internal predecessors, (53727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43030 states to 43030 states and 53727 transitions. [2022-01-10 20:05:33,304 INFO L78 Accepts]: Start accepts. Automaton has 43030 states and 53727 transitions. Word has length 198 [2022-01-10 20:05:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:33,304 INFO L470 AbstractCegarLoop]: Abstraction has 43030 states and 53727 transitions. [2022-01-10 20:05:33,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:33,304 INFO L276 IsEmpty]: Start isEmpty. Operand 43030 states and 53727 transitions. [2022-01-10 20:05:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-10 20:05:33,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:33,319 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] [2022-01-10 20:05:33,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 20:05:33,320 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:33,320 INFO L85 PathProgramCache]: Analyzing trace with hash -631844648, now seen corresponding path program 1 times [2022-01-10 20:05:33,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:33,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383253036] [2022-01-10 20:05:33,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:33,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:33,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:33,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383253036] [2022-01-10 20:05:33,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383253036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:33,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:33,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:33,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083424871] [2022-01-10 20:05:33,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:33,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:33,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:33,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:33,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:33,385 INFO L87 Difference]: Start difference. First operand 43030 states and 53727 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:38,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:38,608 INFO L93 Difference]: Finished difference Result 126438 states and 157836 transitions. [2022-01-10 20:05:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2022-01-10 20:05:38,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:38,724 INFO L225 Difference]: With dead ends: 126438 [2022-01-10 20:05:38,724 INFO L226 Difference]: Without dead ends: 83522 [2022-01-10 20:05:38,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:38,752 INFO L933 BasicCegarLoop]: 1600 mSDtfsCounter, 1145 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:38,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 2835 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83522 states. [2022-01-10 20:05:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83522 to 81470. [2022-01-10 20:05:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81470 states, 81468 states have (on average 1.24623164923651) internal successors, (101528), 81469 states have internal predecessors, (101528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:44,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81470 states to 81470 states and 101528 transitions. [2022-01-10 20:05:44,243 INFO L78 Accepts]: Start accepts. Automaton has 81470 states and 101528 transitions. Word has length 199 [2022-01-10 20:05:44,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:44,244 INFO L470 AbstractCegarLoop]: Abstraction has 81470 states and 101528 transitions. [2022-01-10 20:05:44,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:44,244 INFO L276 IsEmpty]: Start isEmpty. Operand 81470 states and 101528 transitions. [2022-01-10 20:05:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-10 20:05:44,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:44,268 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] [2022-01-10 20:05:44,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 20:05:44,268 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:44,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:44,269 INFO L85 PathProgramCache]: Analyzing trace with hash 299552057, now seen corresponding path program 1 times [2022-01-10 20:05:44,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:44,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931483168] [2022-01-10 20:05:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:44,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:44,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:44,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931483168] [2022-01-10 20:05:44,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931483168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:44,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:44,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:44,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319704395] [2022-01-10 20:05:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:44,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:44,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:44,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:44,297 INFO L87 Difference]: Start difference. First operand 81470 states and 101528 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:49,622 INFO L93 Difference]: Finished difference Result 162770 states and 202858 transitions. [2022-01-10 20:05:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:49,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 199 [2022-01-10 20:05:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:49,747 INFO L225 Difference]: With dead ends: 162770 [2022-01-10 20:05:49,747 INFO L226 Difference]: Without dead ends: 81366 [2022-01-10 20:05:49,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:49,801 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 1260 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:49,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 1269 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:49,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81366 states. [2022-01-10 20:05:55,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81366 to 81366. [2022-01-10 20:05:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81366 states, 81364 states have (on average 1.2463251560886879) internal successors, (101406), 81365 states have internal predecessors, (101406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81366 states to 81366 states and 101406 transitions. [2022-01-10 20:05:55,447 INFO L78 Accepts]: Start accepts. Automaton has 81366 states and 101406 transitions. Word has length 199 [2022-01-10 20:05:55,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:55,447 INFO L470 AbstractCegarLoop]: Abstraction has 81366 states and 101406 transitions. [2022-01-10 20:05:55,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 81366 states and 101406 transitions. [2022-01-10 20:05:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-01-10 20:05:55,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:55,470 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] [2022-01-10 20:05:55,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 20:05:55,470 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:55,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1634832917, now seen corresponding path program 1 times [2022-01-10 20:05:55,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:55,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440194715] [2022-01-10 20:05:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:55,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:55,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:55,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440194715] [2022-01-10 20:05:55,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440194715] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:55,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:55,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:55,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816062559] [2022-01-10 20:05:55,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:55,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:55,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:55,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:55,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:55,512 INFO L87 Difference]: Start difference. First operand 81366 states and 101406 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:06:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:06:05,605 INFO L93 Difference]: Finished difference Result 238141 states and 296761 transitions. [2022-01-10 20:06:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:06:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2022-01-10 20:06:05,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:06:05,877 INFO L225 Difference]: With dead ends: 238141 [2022-01-10 20:06:05,878 INFO L226 Difference]: Without dead ends: 156889 [2022-01-10 20:06:05,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:06:05,944 INFO L933 BasicCegarLoop]: 1547 mSDtfsCounter, 1145 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:06:05,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 2780 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:06:06,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156889 states.