/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:15:33,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:15:33,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:15:34,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:15:34,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:15:34,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:15:34,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:15:34,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:15:34,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:15:34,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:15:34,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:15:34,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:15:34,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:15:34,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:15:34,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:15:34,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:15:34,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:15:34,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:15:34,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:15:34,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:15:34,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:15:34,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:15:34,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:15:34,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:15:34,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:15:34,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:15:34,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:15:34,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:15:34,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:15:34,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:15:34,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:15:34,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:15:34,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:15:34,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:15:34,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:15:34,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:15:34,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:15:34,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:15:34,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:15:34,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:15:34,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:15:34,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:15:34,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:15:34,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:15:34,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:15:34,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:15:34,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:15:34,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:15:34,107 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:15:34,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:15:34,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:15:34,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:15:34,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:15:34,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:15:34,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:15:34,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:15:34,109 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:15:34,109 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:15:34,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:15:34,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:15:34,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:15:34,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:15:34,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:15:34,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:15:34,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:15:34,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:15:34,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:15:34,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:15:34,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:15:34,111 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:15:34,111 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:15:34,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:15:34,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:15:34,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:15:34,113 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:15:34,113 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:15:34,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:15:34,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:15:34,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:15:34,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:15:34,379 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:15:34,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c [2022-01-10 12:15:34,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409dd041c/ff9a3b1a61704df7bcbb3f67112d817f/FLAGe1e05790a [2022-01-10 12:15:34,933 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:15:34,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c [2022-01-10 12:15:34,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409dd041c/ff9a3b1a61704df7bcbb3f67112d817f/FLAGe1e05790a [2022-01-10 12:15:35,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409dd041c/ff9a3b1a61704df7bcbb3f67112d817f [2022-01-10 12:15:35,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:15:35,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:15:35,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:15:35,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:15:35,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:15:35,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:15:35" (1/1) ... [2022-01-10 12:15:35,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72080181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:35, skipping insertion in model container [2022-01-10 12:15:35,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:15:35" (1/1) ... [2022-01-10 12:15:35,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:15:35,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:15:35,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c[6522,6535] [2022-01-10 12:15:36,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:36,153 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:15:36,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:15:36,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c[6522,6535] [2022-01-10 12:15:36,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:36,266 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:15:36,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c[6522,6535] [2022-01-10 12:15:36,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:36,397 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:15:36,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36 WrapperNode [2022-01-10 12:15:36,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:15:36,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:15:36,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:15:36,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:15:36,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,538 INFO L137 Inliner]: procedures = 131, calls = 217, calls flagged for inlining = 126, calls inlined = 155, statements flattened = 2438 [2022-01-10 12:15:36,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:15:36,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:15:36,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:15:36,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:15:36,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:15:36,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:15:36,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:15:36,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:15:36,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (1/1) ... [2022-01-10 12:15:36,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:15:36,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:15:36,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:15:36,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:15:36,755 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:15:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:15:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:15:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:15:36,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:15:37,001 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:15:37,002 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:15:38,239 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:15:38,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:15:38,256 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:15:38,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:15:38 BoogieIcfgContainer [2022-01-10 12:15:38,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:15:38,260 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:15:38,260 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:15:38,262 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:15:38,264 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:15:38" (1/1) ... [2022-01-10 12:15:38,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:15:38 BasicIcfg [2022-01-10 12:15:38,619 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:15:38,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:15:38,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:15:38,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:15:38,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:15:35" (1/4) ... [2022-01-10 12:15:38,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3883f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:15:38, skipping insertion in model container [2022-01-10 12:15:38,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:36" (2/4) ... [2022-01-10 12:15:38,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3883f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:15:38, skipping insertion in model container [2022-01-10 12:15:38,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:15:38" (3/4) ... [2022-01-10 12:15:38,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3883f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:15:38, skipping insertion in model container [2022-01-10 12:15:38,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:15:38" (4/4) ... [2022-01-10 12:15:38,626 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec3_product28.cil.cTransformedIcfg [2022-01-10 12:15:38,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:15:38,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 12:15:38,681 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:15:38,689 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:15:38,690 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 12:15:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 561 states, 556 states have (on average 1.7032374100719425) internal successors, (947), 560 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 12:15:38,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:38,736 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] [2022-01-10 12:15:38,736 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:38,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:38,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1219421855, now seen corresponding path program 1 times [2022-01-10 12:15:38,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:38,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156706093] [2022-01-10 12:15:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:38,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:39,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:39,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:39,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156706093] [2022-01-10 12:15:39,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156706093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:39,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:39,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:15:39,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073826756] [2022-01-10 12:15:39,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:39,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:15:39,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:15:39,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:15:39,137 INFO L87 Difference]: Start difference. First operand has 561 states, 556 states have (on average 1.7032374100719425) internal successors, (947), 560 states have internal predecessors, (947), 0 states have call successors, (0), 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 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:39,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:39,198 INFO L93 Difference]: Finished difference Result 864 states and 1440 transitions. [2022-01-10 12:15:39,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:15:39,209 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 12:15:39,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:39,223 INFO L225 Difference]: With dead ends: 864 [2022-01-10 12:15:39,223 INFO L226 Difference]: Without dead ends: 505 [2022-01-10 12:15:39,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:15:39,235 INFO L933 BasicCegarLoop]: 937 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:39,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:15:39,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-01-10 12:15:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2022-01-10 12:15:39,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 501 states have (on average 1.7085828343313374) internal successors, (856), 504 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 856 transitions. [2022-01-10 12:15:39,319 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 856 transitions. Word has length 64 [2022-01-10 12:15:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:39,320 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 856 transitions. [2022-01-10 12:15:39,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:39,321 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 856 transitions. [2022-01-10 12:15:39,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 12:15:39,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:39,329 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] [2022-01-10 12:15:39,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:15:39,330 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:39,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:39,333 INFO L85 PathProgramCache]: Analyzing trace with hash -936060716, now seen corresponding path program 1 times [2022-01-10 12:15:39,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:39,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222911239] [2022-01-10 12:15:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:39,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:39,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:39,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222911239] [2022-01-10 12:15:39,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222911239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:39,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:39,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:15:39,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613710987] [2022-01-10 12:15:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:39,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:15:39,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:15:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:39,648 INFO L87 Difference]: Start difference. First operand 505 states and 856 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:39,757 INFO L93 Difference]: Finished difference Result 991 states and 1684 transitions. [2022-01-10 12:15:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:15:39,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-10 12:15:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:39,761 INFO L225 Difference]: With dead ends: 991 [2022-01-10 12:15:39,761 INFO L226 Difference]: Without dead ends: 505 [2022-01-10 12:15:39,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:39,764 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 831 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:39,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 851 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:15:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-01-10 12:15:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2022-01-10 12:15:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 501 states have (on average 1.7045908183632734) internal successors, (854), 504 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 854 transitions. [2022-01-10 12:15:39,808 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 854 transitions. Word has length 65 [2022-01-10 12:15:39,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:39,808 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 854 transitions. [2022-01-10 12:15:39,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:39,809 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 854 transitions. [2022-01-10 12:15:39,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 12:15:39,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:39,810 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] [2022-01-10 12:15:39,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:15:39,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:39,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:39,811 INFO L85 PathProgramCache]: Analyzing trace with hash -533608556, now seen corresponding path program 1 times [2022-01-10 12:15:39,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:39,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944258669] [2022-01-10 12:15:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:39,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:39,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:39,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:39,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944258669] [2022-01-10 12:15:39,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944258669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:39,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:39,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:15:39,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142047845] [2022-01-10 12:15:39,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:39,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:39,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:39,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:39,974 INFO L87 Difference]: Start difference. First operand 505 states and 854 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:40,265 INFO L93 Difference]: Finished difference Result 2393 states and 4066 transitions. [2022-01-10 12:15:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:15:40,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-10 12:15:40,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:40,278 INFO L225 Difference]: With dead ends: 2393 [2022-01-10 12:15:40,279 INFO L226 Difference]: Without dead ends: 1912 [2022-01-10 12:15:40,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:15:40,288 INFO L933 BasicCegarLoop]: 1631 mSDtfsCounter, 4053 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4053 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:40,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4053 Valid, 4065 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:40,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-01-10 12:15:40,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 505. [2022-01-10 12:15:40,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 501 states have (on average 1.7025948103792414) internal successors, (853), 504 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 853 transitions. [2022-01-10 12:15:40,331 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 853 transitions. Word has length 67 [2022-01-10 12:15:40,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:40,332 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 853 transitions. [2022-01-10 12:15:40,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 853 transitions. [2022-01-10 12:15:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 12:15:40,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:40,335 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] [2022-01-10 12:15:40,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:15:40,336 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:40,337 INFO L85 PathProgramCache]: Analyzing trace with hash 287391238, now seen corresponding path program 1 times [2022-01-10 12:15:40,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:40,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415574389] [2022-01-10 12:15:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:40,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:40,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:40,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415574389] [2022-01-10 12:15:40,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415574389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:40,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:40,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:15:40,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591386901] [2022-01-10 12:15:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:40,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:15:40,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:40,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:15:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:40,466 INFO L87 Difference]: Start difference. First operand 505 states and 853 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:40,517 INFO L93 Difference]: Finished difference Result 995 states and 1684 transitions. [2022-01-10 12:15:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:15:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-10 12:15:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:40,520 INFO L225 Difference]: With dead ends: 995 [2022-01-10 12:15:40,520 INFO L226 Difference]: Without dead ends: 519 [2022-01-10 12:15:40,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:15:40,522 INFO L933 BasicCegarLoop]: 867 mSDtfsCounter, 832 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:40,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 889 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:15:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-10 12:15:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 505. [2022-01-10 12:15:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 501 states have (on average 1.7005988023952097) internal successors, (852), 504 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 852 transitions. [2022-01-10 12:15:40,554 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 852 transitions. Word has length 68 [2022-01-10 12:15:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:40,554 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 852 transitions. [2022-01-10 12:15:40,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 852 transitions. [2022-01-10 12:15:40,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 12:15:40,556 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:40,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:40,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:15:40,557 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:40,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1840156789, now seen corresponding path program 1 times [2022-01-10 12:15:40,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:40,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771713396] [2022-01-10 12:15:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:40,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:40,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:40,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771713396] [2022-01-10 12:15:40,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771713396] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:40,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:40,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:15:40,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069612327] [2022-01-10 12:15:40,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:40,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:40,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:40,704 INFO L87 Difference]: Start difference. First operand 505 states and 852 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:40,900 INFO L93 Difference]: Finished difference Result 1449 states and 2456 transitions. [2022-01-10 12:15:40,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:15:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-01-10 12:15:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:40,905 INFO L225 Difference]: With dead ends: 1449 [2022-01-10 12:15:40,905 INFO L226 Difference]: Without dead ends: 978 [2022-01-10 12:15:40,906 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 12:15:40,909 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 3976 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:40,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3976 Valid, 1736 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:40,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-01-10 12:15:40,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 505. [2022-01-10 12:15:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 501 states have (on average 1.6966067864271457) internal successors, (850), 504 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 850 transitions. [2022-01-10 12:15:40,959 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 850 transitions. Word has length 69 [2022-01-10 12:15:40,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:40,960 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 850 transitions. [2022-01-10 12:15:40,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 850 transitions. [2022-01-10 12:15:40,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 12:15:40,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:40,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:40,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:15:40,962 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:40,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:40,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1502199314, now seen corresponding path program 1 times [2022-01-10 12:15:40,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:40,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658309598] [2022-01-10 12:15:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:40,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:41,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:41,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658309598] [2022-01-10 12:15:41,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658309598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:41,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:41,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:15:41,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632284415] [2022-01-10 12:15:41,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:41,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:15:41,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:41,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:15:41,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:15:41,134 INFO L87 Difference]: Start difference. First operand 505 states and 850 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:41,638 INFO L93 Difference]: Finished difference Result 3176 states and 5278 transitions. [2022-01-10 12:15:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:15:41,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-01-10 12:15:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:41,652 INFO L225 Difference]: With dead ends: 3176 [2022-01-10 12:15:41,652 INFO L226 Difference]: Without dead ends: 2944 [2022-01-10 12:15:41,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:15:41,656 INFO L933 BasicCegarLoop]: 1324 mSDtfsCounter, 5516 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5516 SdHoareTripleChecker+Valid, 6374 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:41,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5516 Valid, 6374 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:15:41,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2022-01-10 12:15:41,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 901. [2022-01-10 12:15:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 897 states have (on average 1.7001114827201784) internal successors, (1525), 900 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1525 transitions. [2022-01-10 12:15:41,744 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1525 transitions. Word has length 71 [2022-01-10 12:15:41,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:41,746 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1525 transitions. [2022-01-10 12:15:41,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:41,746 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1525 transitions. [2022-01-10 12:15:41,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 12:15:41,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:41,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:41,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:15:41,750 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:41,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:41,751 INFO L85 PathProgramCache]: Analyzing trace with hash 240620310, now seen corresponding path program 1 times [2022-01-10 12:15:41,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:41,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044673502] [2022-01-10 12:15:41,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:41,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:41,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:41,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:41,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044673502] [2022-01-10 12:15:41,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044673502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:41,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:41,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:15:41,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685705835] [2022-01-10 12:15:41,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:41,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:15:41,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:41,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:15:41,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:15:41,861 INFO L87 Difference]: Start difference. First operand 901 states and 1525 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:42,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:42,500 INFO L93 Difference]: Finished difference Result 5447 states and 9121 transitions. [2022-01-10 12:15:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:15:42,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 12:15:42,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:42,521 INFO L225 Difference]: With dead ends: 5447 [2022-01-10 12:15:42,521 INFO L226 Difference]: Without dead ends: 5080 [2022-01-10 12:15:42,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:15:42,525 INFO L933 BasicCegarLoop]: 1658 mSDtfsCounter, 4663 mSDsluCounter, 4544 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4663 SdHoareTripleChecker+Valid, 6202 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:42,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4663 Valid, 6202 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:15:42,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5080 states. [2022-01-10 12:15:42,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5080 to 1670. [2022-01-10 12:15:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1666 states have (on average 1.7076830732292918) internal successors, (2845), 1669 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2845 transitions. [2022-01-10 12:15:42,693 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2845 transitions. Word has length 72 [2022-01-10 12:15:42,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:42,694 INFO L470 AbstractCegarLoop]: Abstraction has 1670 states and 2845 transitions. [2022-01-10 12:15:42,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2845 transitions. [2022-01-10 12:15:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 12:15:42,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:42,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:42,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:15:42,697 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:42,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:42,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1168005184, now seen corresponding path program 1 times [2022-01-10 12:15:42,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:42,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958534446] [2022-01-10 12:15:42,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:42,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:42,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:42,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:42,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958534446] [2022-01-10 12:15:42,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958534446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:42,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:42,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:15:42,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439353532] [2022-01-10 12:15:42,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:42,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:42,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:42,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:42,783 INFO L87 Difference]: Start difference. First operand 1670 states and 2845 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:43,204 INFO L93 Difference]: Finished difference Result 4822 states and 8275 transitions. [2022-01-10 12:15:43,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:15:43,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 12:15:43,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:43,219 INFO L225 Difference]: With dead ends: 4822 [2022-01-10 12:15:43,219 INFO L226 Difference]: Without dead ends: 3202 [2022-01-10 12:15:43,225 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 12:15:43,226 INFO L933 BasicCegarLoop]: 1603 mSDtfsCounter, 2487 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2487 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:43,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2487 Valid, 2406 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2022-01-10 12:15:43,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 1670. [2022-01-10 12:15:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1666 states have (on average 1.706482593037215) internal successors, (2843), 1669 states have internal predecessors, (2843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2843 transitions. [2022-01-10 12:15:43,400 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2843 transitions. Word has length 72 [2022-01-10 12:15:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:43,401 INFO L470 AbstractCegarLoop]: Abstraction has 1670 states and 2843 transitions. [2022-01-10 12:15:43,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2843 transitions. [2022-01-10 12:15:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 12:15:43,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:43,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:43,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:15:43,405 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:43,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1984453762, now seen corresponding path program 1 times [2022-01-10 12:15:43,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:43,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452613799] [2022-01-10 12:15:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:43,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:43,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:43,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452613799] [2022-01-10 12:15:43,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452613799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:43,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:43,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:15:43,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750738235] [2022-01-10 12:15:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:43,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:15:43,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:15:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:15:43,545 INFO L87 Difference]: Start difference. First operand 1670 states and 2843 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:44,585 INFO L93 Difference]: Finished difference Result 9934 states and 16747 transitions. [2022-01-10 12:15:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:15:44,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-10 12:15:44,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:44,639 INFO L225 Difference]: With dead ends: 9934 [2022-01-10 12:15:44,639 INFO L226 Difference]: Without dead ends: 9300 [2022-01-10 12:15:44,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:15:44,646 INFO L933 BasicCegarLoop]: 1664 mSDtfsCounter, 4601 mSDsluCounter, 4582 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4601 SdHoareTripleChecker+Valid, 6246 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:44,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4601 Valid, 6246 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:44,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9300 states. [2022-01-10 12:15:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9300 to 3169. [2022-01-10 12:15:45,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 3165 states have (on average 1.7178515007898894) internal successors, (5437), 3168 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 5437 transitions. [2022-01-10 12:15:45,058 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 5437 transitions. Word has length 73 [2022-01-10 12:15:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:45,059 INFO L470 AbstractCegarLoop]: Abstraction has 3169 states and 5437 transitions. [2022-01-10 12:15:45,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 5437 transitions. [2022-01-10 12:15:45,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 12:15:45,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:45,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:15:45,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:15:45,065 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:45,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:45,066 INFO L85 PathProgramCache]: Analyzing trace with hash -25650079, now seen corresponding path program 1 times [2022-01-10 12:15:45,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:45,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434149057] [2022-01-10 12:15:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:45,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:45,266 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 12:15:45,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:45,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434149057] [2022-01-10 12:15:45,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434149057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:45,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:45,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:15:45,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461951527] [2022-01-10 12:15:45,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:45,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:15:45,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:45,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:15:45,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:15:45,269 INFO L87 Difference]: Start difference. First operand 3169 states and 5437 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:46,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:46,686 INFO L93 Difference]: Finished difference Result 10773 states and 18027 transitions. [2022-01-10 12:15:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:15:46,687 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-10 12:15:46,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:46,711 INFO L225 Difference]: With dead ends: 10773 [2022-01-10 12:15:46,711 INFO L226 Difference]: Without dead ends: 9708 [2022-01-10 12:15:46,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-10 12:15:46,718 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 4961 mSDsluCounter, 6726 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4961 SdHoareTripleChecker+Valid, 7783 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:46,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4961 Valid, 7783 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:15:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9708 states. [2022-01-10 12:15:47,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9708 to 6172. [2022-01-10 12:15:47,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 6168 states have (on average 1.7245460440985734) internal successors, (10637), 6171 states have internal predecessors, (10637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:47,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 10637 transitions. [2022-01-10 12:15:47,429 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 10637 transitions. Word has length 73 [2022-01-10 12:15:47,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:47,430 INFO L470 AbstractCegarLoop]: Abstraction has 6172 states and 10637 transitions. [2022-01-10 12:15:47,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:47,431 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 10637 transitions. [2022-01-10 12:15:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 12:15:47,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:47,444 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] [2022-01-10 12:15:47,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:15:47,444 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:47,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:47,445 INFO L85 PathProgramCache]: Analyzing trace with hash 525461911, now seen corresponding path program 1 times [2022-01-10 12:15:47,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:47,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908541857] [2022-01-10 12:15:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:47,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:47,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:47,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908541857] [2022-01-10 12:15:47,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908541857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:47,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:47,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:15:47,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732300814] [2022-01-10 12:15:47,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:47,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:15:47,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:47,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:15:47,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:15:47,619 INFO L87 Difference]: Start difference. First operand 6172 states and 10637 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:49,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:49,444 INFO L93 Difference]: Finished difference Result 19773 states and 33188 transitions. [2022-01-10 12:15:49,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:15:49,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-10 12:15:49,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:49,539 INFO L225 Difference]: With dead ends: 19773 [2022-01-10 12:15:49,540 INFO L226 Difference]: Without dead ends: 17727 [2022-01-10 12:15:49,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-10 12:15:49,553 INFO L933 BasicCegarLoop]: 917 mSDtfsCounter, 6198 mSDsluCounter, 5237 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6198 SdHoareTripleChecker+Valid, 6154 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:49,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6198 Valid, 6154 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:15:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17727 states. [2022-01-10 12:15:50,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17727 to 12195. [2022-01-10 12:15:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12195 states, 12191 states have (on average 1.7277499794930686) internal successors, (21063), 12194 states have internal predecessors, (21063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12195 states to 12195 states and 21063 transitions. [2022-01-10 12:15:50,882 INFO L78 Accepts]: Start accepts. Automaton has 12195 states and 21063 transitions. Word has length 74 [2022-01-10 12:15:50,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:50,882 INFO L470 AbstractCegarLoop]: Abstraction has 12195 states and 21063 transitions. [2022-01-10 12:15:50,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:50,883 INFO L276 IsEmpty]: Start isEmpty. Operand 12195 states and 21063 transitions. [2022-01-10 12:15:50,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 12:15:50,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:50,916 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] [2022-01-10 12:15:50,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:15:50,916 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:50,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1551747432, now seen corresponding path program 1 times [2022-01-10 12:15:50,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:50,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046071093] [2022-01-10 12:15:50,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:50,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:51,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:51,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:51,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046071093] [2022-01-10 12:15:51,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046071093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:51,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:51,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:15:51,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448426077] [2022-01-10 12:15:51,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:51,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:15:51,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:51,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:15:51,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:15:51,186 INFO L87 Difference]: Start difference. First operand 12195 states and 21063 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:54,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:15:54,963 INFO L93 Difference]: Finished difference Result 30621 states and 50057 transitions. [2022-01-10 12:15:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:15:54,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-10 12:15:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:15:55,056 INFO L225 Difference]: With dead ends: 30621 [2022-01-10 12:15:55,057 INFO L226 Difference]: Without dead ends: 28056 [2022-01-10 12:15:55,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:15:55,077 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 2460 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 3429 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:15:55,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2460 Valid, 3429 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:15:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28056 states. [2022-01-10 12:15:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28056 to 18633. [2022-01-10 12:15:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18633 states, 18629 states have (on average 1.6947769606527456) internal successors, (31572), 18632 states have internal predecessors, (31572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18633 states to 18633 states and 31572 transitions. [2022-01-10 12:15:57,460 INFO L78 Accepts]: Start accepts. Automaton has 18633 states and 31572 transitions. Word has length 74 [2022-01-10 12:15:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:15:57,461 INFO L470 AbstractCegarLoop]: Abstraction has 18633 states and 31572 transitions. [2022-01-10 12:15:57,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:15:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 18633 states and 31572 transitions. [2022-01-10 12:15:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 12:15:57,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:15:57,488 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] [2022-01-10 12:15:57,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:15:57,489 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:15:57,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:15:57,490 INFO L85 PathProgramCache]: Analyzing trace with hash 72084783, now seen corresponding path program 1 times [2022-01-10 12:15:57,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:15:57,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26814805] [2022-01-10 12:15:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:15:57,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:15:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:15:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:15:57,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:15:57,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26814805] [2022-01-10 12:15:57,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26814805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:15:57,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:15:57,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:15:57,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648144387] [2022-01-10 12:15:57,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:15:57,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:15:57,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:15:57,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:15:57,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:15:57,643 INFO L87 Difference]: Start difference. First operand 18633 states and 31572 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:00,653 INFO L93 Difference]: Finished difference Result 26800 states and 44314 transitions. [2022-01-10 12:16:00,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 12:16:00,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-10 12:16:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:00,689 INFO L225 Difference]: With dead ends: 26800 [2022-01-10 12:16:00,690 INFO L226 Difference]: Without dead ends: 19993 [2022-01-10 12:16:00,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-01-10 12:16:00,705 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 2325 mSDsluCounter, 3677 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:00,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2325 Valid, 4597 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:16:00,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19993 states. [2022-01-10 12:16:02,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19993 to 17033. [2022-01-10 12:16:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17033 states, 17029 states have (on average 1.6886487756180633) internal successors, (28756), 17032 states have internal predecessors, (28756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17033 states to 17033 states and 28756 transitions. [2022-01-10 12:16:02,658 INFO L78 Accepts]: Start accepts. Automaton has 17033 states and 28756 transitions. Word has length 75 [2022-01-10 12:16:02,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:02,658 INFO L470 AbstractCegarLoop]: Abstraction has 17033 states and 28756 transitions. [2022-01-10 12:16:02,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 17033 states and 28756 transitions. [2022-01-10 12:16:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 12:16:02,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:02,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:16:02,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:16:02,678 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:16:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:02,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1183689686, now seen corresponding path program 1 times [2022-01-10 12:16:02,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:02,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850497682] [2022-01-10 12:16:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:02,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:02,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:02,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:02,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850497682] [2022-01-10 12:16:02,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850497682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:02,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:02,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:16:02,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391367147] [2022-01-10 12:16:02,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:02,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:16:02,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:02,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:16:02,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:16:02,861 INFO L87 Difference]: Start difference. First operand 17033 states and 28756 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:13,146 INFO L93 Difference]: Finished difference Result 78348 states and 125055 transitions. [2022-01-10 12:16:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-10 12:16:13,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-10 12:16:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:13,286 INFO L225 Difference]: With dead ends: 78348 [2022-01-10 12:16:13,286 INFO L226 Difference]: Without dead ends: 73877 [2022-01-10 12:16:13,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2022-01-10 12:16:13,320 INFO L933 BasicCegarLoop]: 2027 mSDtfsCounter, 3558 mSDsluCounter, 8271 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 10298 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:13,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3558 Valid, 10298 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:16:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73877 states. [2022-01-10 12:16:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73877 to 22062. [2022-01-10 12:16:17,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22062 states, 22058 states have (on average 1.668555626076707) internal successors, (36805), 22061 states have internal predecessors, (36805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22062 states to 22062 states and 36805 transitions. [2022-01-10 12:16:17,372 INFO L78 Accepts]: Start accepts. Automaton has 22062 states and 36805 transitions. Word has length 76 [2022-01-10 12:16:17,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:17,372 INFO L470 AbstractCegarLoop]: Abstraction has 22062 states and 36805 transitions. [2022-01-10 12:16:17,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 22062 states and 36805 transitions. [2022-01-10 12:16:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 12:16:17,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:17,611 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] [2022-01-10 12:16:17,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:16:17,611 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:16:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1631011529, now seen corresponding path program 1 times [2022-01-10 12:16:17,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:17,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016594119] [2022-01-10 12:16:17,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:17,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:17,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:17,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016594119] [2022-01-10 12:16:17,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016594119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:17,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:17,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:16:17,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10333252] [2022-01-10 12:16:17,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:17,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:16:17,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:17,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:16:17,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:16:17,738 INFO L87 Difference]: Start difference. First operand 22062 states and 36805 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:26,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:26,768 INFO L93 Difference]: Finished difference Result 62322 states and 102563 transitions. [2022-01-10 12:16:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:16:26,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-01-10 12:16:26,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:26,881 INFO L225 Difference]: With dead ends: 62322 [2022-01-10 12:16:26,881 INFO L226 Difference]: Without dead ends: 58686 [2022-01-10 12:16:26,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:16:26,904 INFO L933 BasicCegarLoop]: 1341 mSDtfsCounter, 4435 mSDsluCounter, 3983 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4435 SdHoareTripleChecker+Valid, 5324 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:26,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4435 Valid, 5324 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:16:26,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58686 states. [2022-01-10 12:16:31,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58686 to 22565. [2022-01-10 12:16:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22565 states, 22561 states have (on average 1.6643322547759407) internal successors, (37549), 22564 states have internal predecessors, (37549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22565 states to 22565 states and 37549 transitions. [2022-01-10 12:16:31,967 INFO L78 Accepts]: Start accepts. Automaton has 22565 states and 37549 transitions. Word has length 77 [2022-01-10 12:16:31,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:31,968 INFO L470 AbstractCegarLoop]: Abstraction has 22565 states and 37549 transitions. [2022-01-10 12:16:31,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand 22565 states and 37549 transitions. [2022-01-10 12:16:31,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 12:16:31,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:31,990 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] [2022-01-10 12:16:31,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:16:31,990 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 12:16:31,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:31,991 INFO L85 PathProgramCache]: Analyzing trace with hash 149969234, now seen corresponding path program 1 times [2022-01-10 12:16:31,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:31,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169222017] [2022-01-10 12:16:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:31,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:32,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:32,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169222017] [2022-01-10 12:16:32,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169222017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:32,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:32,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:16:32,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274255652] [2022-01-10 12:16:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:32,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:16:32,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:32,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:16:32,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:16:32,096 INFO L87 Difference]: Start difference. First operand 22565 states and 37549 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:36,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:36,984 INFO L93 Difference]: Finished difference Result 42260 states and 68965 transitions. [2022-01-10 12:16:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:16:36,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-01-10 12:16:36,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:37,048 INFO L225 Difference]: With dead ends: 42260 [2022-01-10 12:16:37,048 INFO L226 Difference]: Without dead ends: 31969 [2022-01-10 12:16:37,061 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 12:16:37,062 INFO L933 BasicCegarLoop]: 873 mSDtfsCounter, 2100 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:37,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2100 Valid, 2045 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:16:37,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31969 states.