/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:35:41,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:35:41,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:35:41,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:35:41,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:35:41,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:35:41,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:35:41,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:35:41,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:35:41,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:35:41,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:35:41,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:35:41,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:35:41,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:35:41,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:35:41,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:35:41,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:35:41,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:35:41,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:35:41,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:35:41,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:35:41,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:35:41,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:35:41,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:35:41,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 06:35:41,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 06:35:41,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 06:35:41,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 06:35:41,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 06:35:41,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 06:35:41,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 06:35:41,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 06:35:41,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 06:35:41,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 06:35:41,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 06:35:41,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 06:35:41,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 06:35:41,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 06:35:41,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:35:41,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:35:41,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:35:41,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 06:35:41,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:35:41,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:35:41,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:35:41,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:35:41,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:35:41,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:35:41,229 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:35:41,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:35:41,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:35:41,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:35:41,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:35:41,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:35:41,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:35:41,230 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:35:41,230 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:35:41,230 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:35:41,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:35:41,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:35:41,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:35:41,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:35:41,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:35:41,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:35:41,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:35:41,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:35:41,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:35:41,232 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:35:41,232 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:35:41,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:35:41,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:35:41,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:35:41,480 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:35:41,480 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:35:41,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-11 06:35:41,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c99079ee/40fceba265f447e3bd64e3fae3a4fd20/FLAG9e7d88cc2 [2022-01-11 06:35:41,990 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:35:41,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-11 06:35:42,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c99079ee/40fceba265f447e3bd64e3fae3a4fd20/FLAG9e7d88cc2 [2022-01-11 06:35:42,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c99079ee/40fceba265f447e3bd64e3fae3a4fd20 [2022-01-11 06:35:42,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:35:42,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:35:42,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:35:42,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:35:42,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:35:42,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69adaf09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42, skipping insertion in model container [2022-01-11 06:35:42,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:35:42,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:35:42,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2022-01-11 06:35:42,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:35:42,386 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:35:42,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2022-01-11 06:35:42,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:35:42,529 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:35:42,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42 WrapperNode [2022-01-11 06:35:42,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:35:42,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:35:42,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:35:42,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:35:42,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,592 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 902 [2022-01-11 06:35:42,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:35:42,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:35:42,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:35:42,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:35:42,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:35:42,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:35:42,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:35:42,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:35:42,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (1/1) ... [2022-01-11 06:35:42,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:35:42,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:35:42,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 06:35:42,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 06:35:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:35:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:35:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:35:42,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:35:42,859 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:35:42,860 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:35:43,628 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:35:43,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:35:43,640 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 06:35:43,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:35:43 BoogieIcfgContainer [2022-01-11 06:35:43,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:35:43,643 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:35:43,643 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:35:43,647 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:35:43,650 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:35:43" (1/1) ... [2022-01-11 06:35:44,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:35:44 BasicIcfg [2022-01-11 06:35:44,333 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:35:44,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:35:44,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:35:44,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:35:44,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:35:42" (1/4) ... [2022-01-11 06:35:44,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e2d85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:35:44, skipping insertion in model container [2022-01-11 06:35:44,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:35:42" (2/4) ... [2022-01-11 06:35:44,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e2d85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:35:44, skipping insertion in model container [2022-01-11 06:35:44,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:35:43" (3/4) ... [2022-01-11 06:35:44,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e2d85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:35:44, skipping insertion in model container [2022-01-11 06:35:44,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:35:44" (4/4) ... [2022-01-11 06:35:44,342 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.cTransformedIcfg [2022-01-11 06:35:44,348 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:35:44,348 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 06:35:44,397 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:35:44,408 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 06:35:44,408 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 06:35:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 249 states, 247 states have (on average 1.7246963562753037) internal successors, (426), 248 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:44,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-11 06:35:44,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:44,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:35:44,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:44,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:44,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2059193301, now seen corresponding path program 1 times [2022-01-11 06:35:44,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:44,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330397421] [2022-01-11 06:35:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:44,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:45,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:35:45,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:45,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330397421] [2022-01-11 06:35:45,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330397421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:45,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:45,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:35:45,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715823969] [2022-01-11 06:35:45,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:45,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:35:45,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:45,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:35:45,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:35:45,215 INFO L87 Difference]: Start difference. First operand has 249 states, 247 states have (on average 1.7246963562753037) internal successors, (426), 248 states have internal predecessors, (426), 0 states have call successors, (0), 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 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:46,149 INFO L93 Difference]: Finished difference Result 502 states and 831 transitions. [2022-01-11 06:35:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:35:46,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-11 06:35:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:46,171 INFO L225 Difference]: With dead ends: 502 [2022-01-11 06:35:46,171 INFO L226 Difference]: Without dead ends: 381 [2022-01-11 06:35:46,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:35:46,184 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 207 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:46,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 801 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 06:35:46,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-01-11 06:35:46,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 379. [2022-01-11 06:35:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 378 states have (on average 1.5052910052910053) internal successors, (569), 378 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:46,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 569 transitions. [2022-01-11 06:35:46,317 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 569 transitions. Word has length 95 [2022-01-11 06:35:46,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:46,319 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 569 transitions. [2022-01-11 06:35:46,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:46,319 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 569 transitions. [2022-01-11 06:35:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-11 06:35:46,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:46,326 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] [2022-01-11 06:35:46,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:35:46,327 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:46,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:46,330 INFO L85 PathProgramCache]: Analyzing trace with hash 588531412, now seen corresponding path program 1 times [2022-01-11 06:35:46,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:46,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510289416] [2022-01-11 06:35:46,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:46,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:35:46,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:46,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510289416] [2022-01-11 06:35:46,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510289416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:46,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:46,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:35:46,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505549565] [2022-01-11 06:35:46,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:46,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:35:46,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:35:46,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:35:46,693 INFO L87 Difference]: Start difference. First operand 379 states and 569 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:46,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:46,879 INFO L93 Difference]: Finished difference Result 625 states and 959 transitions. [2022-01-11 06:35:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:35:46,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-11 06:35:46,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:46,884 INFO L225 Difference]: With dead ends: 625 [2022-01-11 06:35:46,884 INFO L226 Difference]: Without dead ends: 623 [2022-01-11 06:35:46,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:35:46,888 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 515 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:46,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 980 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:35:46,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-01-11 06:35:46,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 381. [2022-01-11 06:35:46,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.5026315789473683) internal successors, (571), 380 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 571 transitions. [2022-01-11 06:35:46,961 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 571 transitions. Word has length 96 [2022-01-11 06:35:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:46,962 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 571 transitions. [2022-01-11 06:35:46,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:46,963 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 571 transitions. [2022-01-11 06:35:46,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-11 06:35:46,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:46,967 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] [2022-01-11 06:35:46,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:35:46,970 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:46,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:46,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1065614888, now seen corresponding path program 1 times [2022-01-11 06:35:46,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:46,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420481388] [2022-01-11 06:35:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:46,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:35:47,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:47,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420481388] [2022-01-11 06:35:47,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420481388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:47,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:47,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 06:35:47,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962378093] [2022-01-11 06:35:47,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:47,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:35:47,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:47,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:35:47,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:35:47,423 INFO L87 Difference]: Start difference. First operand 381 states and 571 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:49,715 INFO L93 Difference]: Finished difference Result 4172 states and 6583 transitions. [2022-01-11 06:35:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-11 06:35:49,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-11 06:35:49,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:49,731 INFO L225 Difference]: With dead ends: 4172 [2022-01-11 06:35:49,731 INFO L226 Difference]: Without dead ends: 3886 [2022-01-11 06:35:49,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-01-11 06:35:49,734 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 3366 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3366 SdHoareTripleChecker+Valid, 5783 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:49,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3366 Valid, 5783 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-11 06:35:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2022-01-11 06:35:50,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 1802. [2022-01-11 06:35:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1801 states have (on average 1.5630205441421432) internal successors, (2815), 1801 states have internal predecessors, (2815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:50,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2815 transitions. [2022-01-11 06:35:50,178 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2815 transitions. Word has length 97 [2022-01-11 06:35:50,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:50,178 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 2815 transitions. [2022-01-11 06:35:50,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:50,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2815 transitions. [2022-01-11 06:35:50,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-11 06:35:50,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:50,181 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] [2022-01-11 06:35:50,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:35:50,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash 142130728, now seen corresponding path program 1 times [2022-01-11 06:35:50,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:50,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003431216] [2022-01-11 06:35:50,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:50,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:35:50,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:50,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003431216] [2022-01-11 06:35:50,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003431216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:50,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:50,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 06:35:50,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032726261] [2022-01-11 06:35:50,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:50,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 06:35:50,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:50,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 06:35:50,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-11 06:35:50,629 INFO L87 Difference]: Start difference. First operand 1802 states and 2815 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-01-11 06:35:52,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:52,940 INFO L93 Difference]: Finished difference Result 5953 states and 9401 transitions. [2022-01-11 06:35:52,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 06:35:52,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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 98 [2022-01-11 06:35:52,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:52,959 INFO L225 Difference]: With dead ends: 5953 [2022-01-11 06:35:52,959 INFO L226 Difference]: Without dead ends: 4216 [2022-01-11 06:35:52,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-11 06:35:52,963 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 1426 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:52,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 1221 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-11 06:35:52,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4216 states. [2022-01-11 06:35:53,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4216 to 3218. [2022-01-11 06:35:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3217 states have (on average 1.5700963630711844) internal successors, (5051), 3217 states have internal predecessors, (5051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 5051 transitions. [2022-01-11 06:35:53,662 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 5051 transitions. Word has length 98 [2022-01-11 06:35:53,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:53,662 INFO L470 AbstractCegarLoop]: Abstraction has 3218 states and 5051 transitions. [2022-01-11 06:35:53,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 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) [2022-01-11 06:35:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 5051 transitions. [2022-01-11 06:35:53,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-11 06:35:53,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:53,665 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] [2022-01-11 06:35:53,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 06:35:53,666 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:53,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:53,666 INFO L85 PathProgramCache]: Analyzing trace with hash 695634921, now seen corresponding path program 1 times [2022-01-11 06:35:53,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:53,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351548776] [2022-01-11 06:35:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:53,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:35:53,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:53,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351548776] [2022-01-11 06:35:53,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351548776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:53,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:53,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:35:53,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729862800] [2022-01-11 06:35:53,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:53,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:35:53,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:53,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:35:53,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:35:53,897 INFO L87 Difference]: Start difference. First operand 3218 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 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) [2022-01-11 06:35:56,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:35:57,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:57,619 INFO L93 Difference]: Finished difference Result 7862 states and 12381 transitions. [2022-01-11 06:35:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:35:57,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 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 98 [2022-01-11 06:35:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:57,640 INFO L225 Difference]: With dead ends: 7862 [2022-01-11 06:35:57,640 INFO L226 Difference]: Without dead ends: 5462 [2022-01-11 06:35:57,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:35:57,645 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 315 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:57,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 745 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-11 06:35:57,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5462 states. [2022-01-11 06:35:58,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5462 to 5436. [2022-01-11 06:35:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 1.5670653173873046) internal successors, (8517), 5435 states have internal predecessors, (8517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 8517 transitions. [2022-01-11 06:35:58,958 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 8517 transitions. Word has length 98 [2022-01-11 06:35:58,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:58,959 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 8517 transitions. [2022-01-11 06:35:58,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 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) [2022-01-11 06:35:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 8517 transitions. [2022-01-11 06:35:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 06:35:58,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:58,962 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] [2022-01-11 06:35:58,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 06:35:58,962 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:58,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2095267094, now seen corresponding path program 1 times [2022-01-11 06:35:58,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:58,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337702745] [2022-01-11 06:35:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:58,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:35:59,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:59,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337702745] [2022-01-11 06:35:59,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337702745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:59,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:59,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:35:59,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364362712] [2022-01-11 06:35:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:59,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:35:59,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:59,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:35:59,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:35:59,100 INFO L87 Difference]: Start difference. First operand 5436 states and 8517 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:36:00,399 INFO L93 Difference]: Finished difference Result 10345 states and 16249 transitions. [2022-01-11 06:36:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:36:00,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 06:36:00,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:36:00,421 INFO L225 Difference]: With dead ends: 10345 [2022-01-11 06:36:00,421 INFO L226 Difference]: Without dead ends: 6071 [2022-01-11 06:36:00,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:36:00,428 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 257 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:36:00,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 692 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:36:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6071 states. [2022-01-11 06:36:01,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6071 to 6069. [2022-01-11 06:36:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6068 states have (on average 1.5533948582729071) internal successors, (9426), 6068 states have internal predecessors, (9426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:01,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 9426 transitions. [2022-01-11 06:36:01,839 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 9426 transitions. Word has length 99 [2022-01-11 06:36:01,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:36:01,840 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 9426 transitions. [2022-01-11 06:36:01,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:01,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 9426 transitions. [2022-01-11 06:36:01,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 06:36:01,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:36:01,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:36:01,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 06:36:01,844 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:36:01,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:36:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash 777431798, now seen corresponding path program 1 times [2022-01-11 06:36:01,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:36:01,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191509571] [2022-01-11 06:36:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:36:01,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:36:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:36:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:36:02,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:36:02,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191509571] [2022-01-11 06:36:02,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191509571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:36:02,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:36:02,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:36:02,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675709939] [2022-01-11 06:36:02,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:36:02,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:36:02,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:36:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:36:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:36:02,241 INFO L87 Difference]: Start difference. First operand 6069 states and 9426 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:07,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:36:09,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:36:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:36:22,159 INFO L93 Difference]: Finished difference Result 49565 states and 77214 transitions. [2022-01-11 06:36:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 06:36:22,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 06:36:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:36:22,296 INFO L225 Difference]: With dead ends: 49565 [2022-01-11 06:36:22,296 INFO L226 Difference]: Without dead ends: 43652 [2022-01-11 06:36:22,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-11 06:36:22,323 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 2496 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-01-11 06:36:22,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2496 Valid, 1228 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 807 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-01-11 06:36:22,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43652 states. [2022-01-11 06:36:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43652 to 22534. [2022-01-11 06:36:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22534 states, 22533 states have (on average 1.5495495495495495) internal successors, (34916), 22533 states have internal predecessors, (34916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22534 states to 22534 states and 34916 transitions. [2022-01-11 06:36:30,403 INFO L78 Accepts]: Start accepts. Automaton has 22534 states and 34916 transitions. Word has length 99 [2022-01-11 06:36:30,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:36:30,404 INFO L470 AbstractCegarLoop]: Abstraction has 22534 states and 34916 transitions. [2022-01-11 06:36:30,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 22534 states and 34916 transitions. [2022-01-11 06:36:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 06:36:30,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:36:30,415 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] [2022-01-11 06:36:30,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 06:36:30,415 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:36:30,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:36:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1764482223, now seen corresponding path program 1 times [2022-01-11 06:36:30,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:36:30,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877999541] [2022-01-11 06:36:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:36:30,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:36:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:36:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:36:30,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:36:30,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877999541] [2022-01-11 06:36:30,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877999541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:36:30,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:36:30,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:36:30,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998232895] [2022-01-11 06:36:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:36:30,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:36:30,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:36:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:36:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:36:30,569 INFO L87 Difference]: Start difference. First operand 22534 states and 34916 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:43,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:36:43,619 INFO L93 Difference]: Finished difference Result 60786 states and 94077 transitions. [2022-01-11 06:36:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:36:43,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 06:36:43,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:36:43,698 INFO L225 Difference]: With dead ends: 60786 [2022-01-11 06:36:43,698 INFO L226 Difference]: Without dead ends: 39416 [2022-01-11 06:36:43,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:36:43,731 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 226 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:36:43,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 672 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:36:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39416 states.