/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:35:38,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:35:38,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:35:39,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:35:39,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:35:39,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:35:39,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:35:39,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:35:39,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:35:39,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:35:39,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:35:39,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:35:39,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:35:39,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:35:39,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:35:39,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:35:39,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:35:39,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:35:39,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:35:39,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:35:39,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:35:39,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:35:39,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:35:39,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:35:39,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:35:39,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:35:39,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:35:39,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:35:39,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:35:39,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:35:39,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:35:39,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:35:39,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:35:39,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:35:39,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:35:39,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:35:39,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:35:39,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:35:39,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:35:39,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:35:39,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:35:39,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:35:39,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:35:39,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:35:39,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:35:39,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:35:39,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:35:39,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:35:39,114 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:35:39,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:35:39,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:35:39,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:35:39,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:35:39,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:35:39,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:35:39,115 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:35:39,115 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:35:39,115 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:35:39,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:35:39,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:35:39,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:35:39,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:35:39,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:35:39,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:39,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:35:39,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:35:39,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:35:39,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:35:39,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:35:39,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:35:39,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:35:39,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:35:39,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:35:39,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:35:39,117 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:35:39,117 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:35:39,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:35:39,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:35:39,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:35:39,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:35:39,381 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:35:39,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2022-01-11 05:35:39,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63536d7f/5918c88ebc9f4ff7810f854d2df67aa5/FLAG9106faac9 [2022-01-11 05:35:39,975 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:35:39,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2022-01-11 05:35:39,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63536d7f/5918c88ebc9f4ff7810f854d2df67aa5/FLAG9106faac9 [2022-01-11 05:35:40,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63536d7f/5918c88ebc9f4ff7810f854d2df67aa5 [2022-01-11 05:35:40,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:35:40,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:35:40,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:40,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:35:40,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:35:40,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:40" (1/1) ... [2022-01-11 05:35:40,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f238fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:40, skipping insertion in model container [2022-01-11 05:35:40,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:40" (1/1) ... [2022-01-11 05:35:40,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:35:40,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:40,959 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/elevator_spec3_product27.cil.c[73003,73016] [2022-01-11 05:35:40,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:40,973 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:35:40,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:41,101 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/elevator_spec3_product27.cil.c[73003,73016] [2022-01-11 05:35:41,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:41,111 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:35:41,230 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/elevator_spec3_product27.cil.c[73003,73016] [2022-01-11 05:35:41,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:41,259 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:35:41,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41 WrapperNode [2022-01-11 05:35:41,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:41,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:41,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:35:41,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:35:41,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,572 INFO L137 Inliner]: procedures = 95, calls = 348, calls flagged for inlining = 201, calls inlined = 808, statements flattened = 24315 [2022-01-11 05:35:41,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:41,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:35:41,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:35:41,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:35:41,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:35:42,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:35:42,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:35:42,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:35:42,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:42,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:35:42,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:35:42,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:35:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:35:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:35:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:35:42,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:35:42,455 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:35:42,456 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:35:51,094 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:35:51,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:35:51,148 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:35:51,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:51 BoogieIcfgContainer [2022-01-11 05:35:51,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:35:51,160 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:35:51,160 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:35:51,162 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:35:51,165 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:51" (1/1) ... [2022-01-11 05:35:53,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:53 BasicIcfg [2022-01-11 05:35:53,006 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:35:53,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:35:53,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:35:53,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:35:53,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:35:40" (1/4) ... [2022-01-11 05:35:53,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29146a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:53, skipping insertion in model container [2022-01-11 05:35:53,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (2/4) ... [2022-01-11 05:35:53,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29146a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:53, skipping insertion in model container [2022-01-11 05:35:53,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:51" (3/4) ... [2022-01-11 05:35:53,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29146a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:35:53, skipping insertion in model container [2022-01-11 05:35:53,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:53" (4/4) ... [2022-01-11 05:35:53,015 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product27.cil.cTransformedIcfg [2022-01-11 05:35:53,019 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:35:53,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:35:53,093 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:35:53,098 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:35:53,098 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:35:53,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 6713 states, 6702 states have (on average 1.8628767532079975) internal successors, (12485), 6712 states have internal predecessors, (12485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:53,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:53,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:53,241 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] [2022-01-11 05:35:53,241 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:53,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash -173111874, now seen corresponding path program 1 times [2022-01-11 05:35:53,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:53,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875067040] [2022-01-11 05:35:53,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:53,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:53,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:53,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875067040] [2022-01-11 05:35:53,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875067040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:53,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:53,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:53,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231192014] [2022-01-11 05:35:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:53,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:53,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:53,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:53,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:53,852 INFO L87 Difference]: Start difference. First operand has 6713 states, 6702 states have (on average 1.8628767532079975) internal successors, (12485), 6712 states have internal predecessors, (12485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:55,781 INFO L93 Difference]: Finished difference Result 17320 states and 32213 transitions. [2022-01-11 05:35:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 05:35:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:55,853 INFO L225 Difference]: With dead ends: 17320 [2022-01-11 05:35:55,853 INFO L226 Difference]: Without dead ends: 11786 [2022-01-11 05:35:55,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:55,876 INFO L933 BasicCegarLoop]: 21270 mSDtfsCounter, 12292 mSDsluCounter, 8999 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12292 SdHoareTripleChecker+Valid, 30269 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:55,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12292 Valid, 30269 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-11 05:35:55,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11786 states. [2022-01-11 05:35:56,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11786 to 11730. [2022-01-11 05:35:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11730 states, 11720 states have (on average 1.8616894197952218) internal successors, (21819), 11729 states have internal predecessors, (21819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11730 states to 11730 states and 21819 transitions. [2022-01-11 05:35:56,422 INFO L78 Accepts]: Start accepts. Automaton has 11730 states and 21819 transitions. Word has length 52 [2022-01-11 05:35:56,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:56,423 INFO L470 AbstractCegarLoop]: Abstraction has 11730 states and 21819 transitions. [2022-01-11 05:35:56,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 11730 states and 21819 transitions. [2022-01-11 05:35:56,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:56,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:56,426 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] [2022-01-11 05:35:56,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:35:56,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:56,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:56,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1569698461, now seen corresponding path program 1 times [2022-01-11 05:35:56,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:56,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743359115] [2022-01-11 05:35:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:56,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:56,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:56,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:56,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743359115] [2022-01-11 05:35:56,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743359115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:56,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:56,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:56,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518098115] [2022-01-11 05:35:56,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:56,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:56,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:56,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:56,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:56,509 INFO L87 Difference]: Start difference. First operand 11730 states and 21819 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:57,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:57,144 INFO L93 Difference]: Finished difference Result 23733 states and 44135 transitions. [2022-01-11 05:35:57,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:57,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 05:35:57,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:57,240 INFO L225 Difference]: With dead ends: 23733 [2022-01-11 05:35:57,240 INFO L226 Difference]: Without dead ends: 17698 [2022-01-11 05:35:57,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:57,261 INFO L933 BasicCegarLoop]: 17316 mSDtfsCounter, 12317 mSDsluCounter, 9815 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12317 SdHoareTripleChecker+Valid, 27131 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:57,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12317 Valid, 27131 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:35:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17698 states. [2022-01-11 05:35:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17698 to 17662. [2022-01-11 05:35:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17662 states, 17652 states have (on average 1.8614321323362792) internal successors, (32858), 17661 states have internal predecessors, (32858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17662 states to 17662 states and 32858 transitions. [2022-01-11 05:35:57,841 INFO L78 Accepts]: Start accepts. Automaton has 17662 states and 32858 transitions. Word has length 52 [2022-01-11 05:35:57,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:57,842 INFO L470 AbstractCegarLoop]: Abstraction has 17662 states and 32858 transitions. [2022-01-11 05:35:57,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:57,846 INFO L276 IsEmpty]: Start isEmpty. Operand 17662 states and 32858 transitions. [2022-01-11 05:35:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:57,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:57,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:57,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:35:57,855 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:57,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:57,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1837765154, now seen corresponding path program 1 times [2022-01-11 05:35:57,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:57,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325542805] [2022-01-11 05:35:57,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:57,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:57,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325542805] [2022-01-11 05:35:57,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325542805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:57,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:57,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:57,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197376892] [2022-01-11 05:35:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:57,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:57,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:57,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:57,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:57,966 INFO L87 Difference]: Start difference. First operand 17662 states and 32858 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:58,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:58,768 INFO L93 Difference]: Finished difference Result 50409 states and 93846 transitions. [2022-01-11 05:35:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:58,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 05:35:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:58,875 INFO L225 Difference]: With dead ends: 50409 [2022-01-11 05:35:58,875 INFO L226 Difference]: Without dead ends: 34105 [2022-01-11 05:35:58,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:58,916 INFO L933 BasicCegarLoop]: 12620 mSDtfsCounter, 11505 mSDsluCounter, 12342 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11505 SdHoareTripleChecker+Valid, 24962 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:58,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11505 Valid, 24962 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34105 states. [2022-01-11 05:35:59,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34105 to 33772. [2022-01-11 05:35:59,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33772 states, 33762 states have (on average 1.8631005272199515) internal successors, (62902), 33771 states have internal predecessors, (62902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33772 states to 33772 states and 62902 transitions. [2022-01-11 05:36:00,032 INFO L78 Accepts]: Start accepts. Automaton has 33772 states and 62902 transitions. Word has length 52 [2022-01-11 05:36:00,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:00,034 INFO L470 AbstractCegarLoop]: Abstraction has 33772 states and 62902 transitions. [2022-01-11 05:36:00,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:00,034 INFO L276 IsEmpty]: Start isEmpty. Operand 33772 states and 62902 transitions. [2022-01-11 05:36:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:36:00,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:00,037 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] [2022-01-11 05:36:00,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:36:00,037 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:00,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:00,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1051394729, now seen corresponding path program 1 times [2022-01-11 05:36:00,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:00,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026976820] [2022-01-11 05:36:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:00,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:00,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:00,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026976820] [2022-01-11 05:36:00,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026976820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:00,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:00,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:36:00,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025912324] [2022-01-11 05:36:00,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:00,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:36:00,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:00,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:36:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:36:00,146 INFO L87 Difference]: Start difference. First operand 33772 states and 62902 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:02,229 INFO L93 Difference]: Finished difference Result 134779 states and 251016 transitions. [2022-01-11 05:36:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:36:02,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 05:36:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:02,642 INFO L225 Difference]: With dead ends: 134779 [2022-01-11 05:36:02,643 INFO L226 Difference]: Without dead ends: 101034 [2022-01-11 05:36:02,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:02,743 INFO L933 BasicCegarLoop]: 24697 mSDtfsCounter, 36898 mSDsluCounter, 37075 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36898 SdHoareTripleChecker+Valid, 61772 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:02,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36898 Valid, 61772 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:36:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101034 states. [2022-01-11 05:36:04,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101034 to 33792. [2022-01-11 05:36:04,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33792 states, 33782 states have (on average 1.8625895447279617) internal successors, (62922), 33791 states have internal predecessors, (62922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33792 states to 33792 states and 62922 transitions. [2022-01-11 05:36:04,675 INFO L78 Accepts]: Start accepts. Automaton has 33792 states and 62922 transitions. Word has length 52 [2022-01-11 05:36:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:04,675 INFO L470 AbstractCegarLoop]: Abstraction has 33792 states and 62922 transitions. [2022-01-11 05:36:04,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:04,677 INFO L276 IsEmpty]: Start isEmpty. Operand 33792 states and 62922 transitions. [2022-01-11 05:36:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:36:04,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:04,681 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] [2022-01-11 05:36:04,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:36:04,681 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:04,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:04,682 INFO L85 PathProgramCache]: Analyzing trace with hash 481167256, now seen corresponding path program 1 times [2022-01-11 05:36:04,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:04,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972197930] [2022-01-11 05:36:04,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:04,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:04,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:04,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972197930] [2022-01-11 05:36:04,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972197930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:04,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:04,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:04,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054220391] [2022-01-11 05:36:04,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:04,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:04,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:04,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:04,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:04,758 INFO L87 Difference]: Start difference. First operand 33792 states and 62922 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:05,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:05,648 INFO L93 Difference]: Finished difference Result 67433 states and 125560 transitions. [2022-01-11 05:36:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:05,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 05:36:05,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:05,716 INFO L225 Difference]: With dead ends: 67433 [2022-01-11 05:36:05,717 INFO L226 Difference]: Without dead ends: 33656 [2022-01-11 05:36:05,756 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 [2022-01-11 05:36:05,757 INFO L933 BasicCegarLoop]: 12310 mSDtfsCounter, 12302 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12302 SdHoareTripleChecker+Valid, 12318 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:05,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12302 Valid, 12318 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:05,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2022-01-11 05:36:06,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33656. [2022-01-11 05:36:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33656 states, 33646 states have (on average 1.8620341199548238) internal successors, (62650), 33655 states have internal predecessors, (62650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33656 states to 33656 states and 62650 transitions. [2022-01-11 05:36:06,971 INFO L78 Accepts]: Start accepts. Automaton has 33656 states and 62650 transitions. Word has length 53 [2022-01-11 05:36:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:06,972 INFO L470 AbstractCegarLoop]: Abstraction has 33656 states and 62650 transitions. [2022-01-11 05:36:06,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 33656 states and 62650 transitions. [2022-01-11 05:36:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:36:06,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:06,975 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] [2022-01-11 05:36:06,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:36:06,975 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:06,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:06,976 INFO L85 PathProgramCache]: Analyzing trace with hash -273039424, now seen corresponding path program 1 times [2022-01-11 05:36:06,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:06,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647593896] [2022-01-11 05:36:06,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:06,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:07,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:07,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:07,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647593896] [2022-01-11 05:36:07,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647593896] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:07,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:07,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:36:07,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406702961] [2022-01-11 05:36:07,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:07,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:36:07,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:07,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:36:07,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:07,095 INFO L87 Difference]: Start difference. First operand 33656 states and 62650 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:08,220 INFO L93 Difference]: Finished difference Result 67290 states and 125271 transitions. [2022-01-11 05:36:08,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-11 05:36:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:08,277 INFO L225 Difference]: With dead ends: 67290 [2022-01-11 05:36:08,278 INFO L226 Difference]: Without dead ends: 33656 [2022-01-11 05:36:08,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:36:08,308 INFO L933 BasicCegarLoop]: 12296 mSDtfsCounter, 36884 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36884 SdHoareTripleChecker+Valid, 12334 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:08,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36884 Valid, 12334 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:08,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2022-01-11 05:36:09,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33656. [2022-01-11 05:36:09,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33656 states, 33646 states have (on average 1.8619152350948107) internal successors, (62646), 33655 states have internal predecessors, (62646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33656 states to 33656 states and 62646 transitions. [2022-01-11 05:36:09,392 INFO L78 Accepts]: Start accepts. Automaton has 33656 states and 62646 transitions. Word has length 55 [2022-01-11 05:36:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:09,393 INFO L470 AbstractCegarLoop]: Abstraction has 33656 states and 62646 transitions. [2022-01-11 05:36:09,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 33656 states and 62646 transitions. [2022-01-11 05:36:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:36:09,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:09,396 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] [2022-01-11 05:36:09,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:36:09,396 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:09,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:09,396 INFO L85 PathProgramCache]: Analyzing trace with hash 700110588, now seen corresponding path program 1 times [2022-01-11 05:36:09,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:09,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313605854] [2022-01-11 05:36:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:09,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:09,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:09,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313605854] [2022-01-11 05:36:09,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313605854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:09,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:09,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:09,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112904178] [2022-01-11 05:36:09,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:09,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:09,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:09,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:09,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:09,475 INFO L87 Difference]: Start difference. First operand 33656 states and 62646 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:10,389 INFO L93 Difference]: Finished difference Result 67284 states and 125253 transitions. [2022-01-11 05:36:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:36:10,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 05:36:10,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:10,444 INFO L225 Difference]: With dead ends: 67284 [2022-01-11 05:36:10,445 INFO L226 Difference]: Without dead ends: 33656 [2022-01-11 05:36:10,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:36:10,472 INFO L933 BasicCegarLoop]: 12278 mSDtfsCounter, 24572 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24572 SdHoareTripleChecker+Valid, 12321 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:10,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24572 Valid, 12321 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:36:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2022-01-11 05:36:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33656. [2022-01-11 05:36:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33656 states, 33646 states have (on average 1.8617963502347976) internal successors, (62642), 33655 states have internal predecessors, (62642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:11,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33656 states to 33656 states and 62642 transitions. [2022-01-11 05:36:11,484 INFO L78 Accepts]: Start accepts. Automaton has 33656 states and 62642 transitions. Word has length 56 [2022-01-11 05:36:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:11,484 INFO L470 AbstractCegarLoop]: Abstraction has 33656 states and 62642 transitions. [2022-01-11 05:36:11,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 33656 states and 62642 transitions. [2022-01-11 05:36:11,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:36:11,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:11,488 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] [2022-01-11 05:36:11,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:36:11,488 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:11,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:11,488 INFO L85 PathProgramCache]: Analyzing trace with hash 930420651, now seen corresponding path program 1 times [2022-01-11 05:36:11,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:11,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845497662] [2022-01-11 05:36:11,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:11,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:11,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:11,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845497662] [2022-01-11 05:36:11,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845497662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:11,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:11,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:36:11,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943439167] [2022-01-11 05:36:11,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:11,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:36:11,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:36:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:36:11,599 INFO L87 Difference]: Start difference. First operand 33656 states and 62642 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:12,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:12,651 INFO L93 Difference]: Finished difference Result 67284 states and 125246 transitions. [2022-01-11 05:36:12,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:36:12,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-11 05:36:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:12,708 INFO L225 Difference]: With dead ends: 67284 [2022-01-11 05:36:12,708 INFO L226 Difference]: Without dead ends: 33656 [2022-01-11 05:36:12,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:36:12,728 INFO L933 BasicCegarLoop]: 12278 mSDtfsCounter, 24566 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24566 SdHoareTripleChecker+Valid, 12331 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:12,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24566 Valid, 12331 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:12,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2022-01-11 05:36:13,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33656. [2022-01-11 05:36:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33656 states, 33646 states have (on average 1.8616774653747845) internal successors, (62638), 33655 states have internal predecessors, (62638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33656 states to 33656 states and 62638 transitions. [2022-01-11 05:36:13,776 INFO L78 Accepts]: Start accepts. Automaton has 33656 states and 62638 transitions. Word has length 57 [2022-01-11 05:36:13,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:13,776 INFO L470 AbstractCegarLoop]: Abstraction has 33656 states and 62638 transitions. [2022-01-11 05:36:13,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 33656 states and 62638 transitions. [2022-01-11 05:36:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:36:13,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:13,779 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] [2022-01-11 05:36:13,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:36:13,779 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:13,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash -768286481, now seen corresponding path program 1 times [2022-01-11 05:36:13,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:13,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517516555] [2022-01-11 05:36:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:13,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:13,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:13,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:13,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517516555] [2022-01-11 05:36:13,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517516555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:13,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:13,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:36:13,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389992053] [2022-01-11 05:36:13,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:13,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:36:13,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:13,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:36:13,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:36:13,871 INFO L87 Difference]: Start difference. First operand 33656 states and 62638 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:14,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:14,855 INFO L93 Difference]: Finished difference Result 67284 states and 125239 transitions. [2022-01-11 05:36:14,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:36:14,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-11 05:36:14,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:14,910 INFO L225 Difference]: With dead ends: 67284 [2022-01-11 05:36:14,910 INFO L226 Difference]: Without dead ends: 33656 [2022-01-11 05:36:14,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:36:14,936 INFO L933 BasicCegarLoop]: 12278 mSDtfsCounter, 36848 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36848 SdHoareTripleChecker+Valid, 12321 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:14,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36848 Valid, 12321 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:14,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2022-01-11 05:36:15,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33656. [2022-01-11 05:36:15,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33656 states, 33646 states have (on average 1.8615585805147714) internal successors, (62634), 33655 states have internal predecessors, (62634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33656 states to 33656 states and 62634 transitions. [2022-01-11 05:36:15,925 INFO L78 Accepts]: Start accepts. Automaton has 33656 states and 62634 transitions. Word has length 58 [2022-01-11 05:36:15,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:15,925 INFO L470 AbstractCegarLoop]: Abstraction has 33656 states and 62634 transitions. [2022-01-11 05:36:15,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 33656 states and 62634 transitions. [2022-01-11 05:36:15,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:36:15,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:15,927 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] [2022-01-11 05:36:15,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:36:15,928 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:15,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:15,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2136984514, now seen corresponding path program 1 times [2022-01-11 05:36:15,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:15,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182172422] [2022-01-11 05:36:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:15,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:16,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:16,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182172422] [2022-01-11 05:36:16,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182172422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:16,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:16,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:36:16,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006142891] [2022-01-11 05:36:16,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:16,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:36:16,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:36:16,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:16,008 INFO L87 Difference]: Start difference. First operand 33656 states and 62634 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:17,127 INFO L93 Difference]: Finished difference Result 67284 states and 125232 transitions. [2022-01-11 05:36:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:36:17,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:36:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:17,171 INFO L225 Difference]: With dead ends: 67284 [2022-01-11 05:36:17,172 INFO L226 Difference]: Without dead ends: 33656 [2022-01-11 05:36:17,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:36:17,192 INFO L933 BasicCegarLoop]: 12278 mSDtfsCounter, 36852 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36852 SdHoareTripleChecker+Valid, 12311 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:17,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36852 Valid, 12311 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:17,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2022-01-11 05:36:17,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33656. [2022-01-11 05:36:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33656 states, 33646 states have (on average 1.8614396956547583) internal successors, (62630), 33655 states have internal predecessors, (62630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33656 states to 33656 states and 62630 transitions. [2022-01-11 05:36:18,060 INFO L78 Accepts]: Start accepts. Automaton has 33656 states and 62630 transitions. Word has length 59 [2022-01-11 05:36:18,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:18,060 INFO L470 AbstractCegarLoop]: Abstraction has 33656 states and 62630 transitions. [2022-01-11 05:36:18,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 33656 states and 62630 transitions. [2022-01-11 05:36:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:36:18,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:18,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:18,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:36:18,063 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:18,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1865335070, now seen corresponding path program 1 times [2022-01-11 05:36:18,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:18,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292221910] [2022-01-11 05:36:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:18,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:18,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:18,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292221910] [2022-01-11 05:36:18,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292221910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:18,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:18,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:18,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408145647] [2022-01-11 05:36:18,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:18,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:18,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:18,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:18,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:18,135 INFO L87 Difference]: Start difference. First operand 33656 states and 62630 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:24,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:24,435 INFO L93 Difference]: Finished difference Result 219120 states and 407572 transitions. [2022-01-11 05:36:24,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:24,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 05:36:24,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:24,827 INFO L225 Difference]: With dead ends: 219120 [2022-01-11 05:36:24,827 INFO L226 Difference]: Without dead ends: 186631 [2022-01-11 05:36:24,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:36:24,894 INFO L933 BasicCegarLoop]: 25831 mSDtfsCounter, 82142 mSDsluCounter, 68871 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82142 SdHoareTripleChecker+Valid, 94702 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:24,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82142 Valid, 94702 Invalid, 1717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [355 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-11 05:36:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186631 states. [2022-01-11 05:36:27,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186631 to 62990. [2022-01-11 05:36:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62990 states, 62980 states have (on average 1.8607970784375993) internal successors, (117193), 62989 states have internal predecessors, (117193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62990 states to 62990 states and 117193 transitions. [2022-01-11 05:36:28,115 INFO L78 Accepts]: Start accepts. Automaton has 62990 states and 117193 transitions. Word has length 60 [2022-01-11 05:36:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:28,115 INFO L470 AbstractCegarLoop]: Abstraction has 62990 states and 117193 transitions. [2022-01-11 05:36:28,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 62990 states and 117193 transitions. [2022-01-11 05:36:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:36:28,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:28,129 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] [2022-01-11 05:36:28,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:36:28,129 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:28,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:28,130 INFO L85 PathProgramCache]: Analyzing trace with hash -597503793, now seen corresponding path program 1 times [2022-01-11 05:36:28,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:28,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289156315] [2022-01-11 05:36:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:28,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:28,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:28,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289156315] [2022-01-11 05:36:28,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289156315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:28,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:28,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:28,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979346283] [2022-01-11 05:36:28,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:28,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:28,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:28,201 INFO L87 Difference]: Start difference. First operand 62990 states and 117193 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:30,934 INFO L93 Difference]: Finished difference Result 127672 states and 236845 transitions. [2022-01-11 05:36:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:36:30,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 05:36:30,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:31,053 INFO L225 Difference]: With dead ends: 127672 [2022-01-11 05:36:31,054 INFO L226 Difference]: Without dead ends: 64758 [2022-01-11 05:36:31,088 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 [2022-01-11 05:36:31,089 INFO L933 BasicCegarLoop]: 19520 mSDtfsCounter, 35881 mSDsluCounter, 30234 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35881 SdHoareTripleChecker+Valid, 49754 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:31,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35881 Valid, 49754 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:36:31,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64758 states.