/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:17:12,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:17:12,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:17:12,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:17:12,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:17:12,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:17:12,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:17:12,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:17:12,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:17:12,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:17:12,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:17:12,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:17:12,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:17:12,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:17:12,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:17:12,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:17:12,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:17:12,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:17:12,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:17:12,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:17:12,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:17:12,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:17:12,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:17:12,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:17:12,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 13:17:12,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 13:17:12,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 13:17:12,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 13:17:12,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 13:17:12,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 13:17:12,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:17:12,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:17:12,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:17:12,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:17:12,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:17:12,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:17:12,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:17:12,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:17:12,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:17:12,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:17:12,164 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:17:12,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:17:12,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:17:12,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:17:12,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:17:12,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:17:12,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:17:12,165 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:17:12,166 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:17:12,166 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:17:12,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:17:12,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:17:12,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:17:12,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:17:12,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:17:12,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:17:12,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:17:12,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:17:12,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:17:12,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:17:12,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:17:12,168 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:17:12,169 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:17:12,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:17:12,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:17:12,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:17:12,170 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:17:12,170 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:17:12,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:17:12,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:17:12,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:17:12,429 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:17:12,429 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:17:12,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-01-10 13:17:12,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49927761/15e5047429204faaa03df5f941091fbd/FLAGb607891f6 [2022-01-10 13:17:12,971 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:17:12,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-01-10 13:17:12,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49927761/15e5047429204faaa03df5f941091fbd/FLAGb607891f6 [2022-01-10 13:17:13,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49927761/15e5047429204faaa03df5f941091fbd [2022-01-10 13:17:13,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:17:13,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:17:13,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:17:13,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:17:13,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:17:13,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb8d2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13, skipping insertion in model container [2022-01-10 13:17:13,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:17:13,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:17:13,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15613,15626] [2022-01-10 13:17:13,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16673,16686] [2022-01-10 13:17:13,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28981,28994] [2022-01-10 13:17:13,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[29628,29641] [2022-01-10 13:17:13,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[30969,30982] [2022-01-10 13:17:13,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:17:13,557 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:17:13,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15613,15626] [2022-01-10 13:17:13,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16673,16686] [2022-01-10 13:17:13,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28981,28994] [2022-01-10 13:17:13,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[29628,29641] [2022-01-10 13:17:13,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[30969,30982] [2022-01-10 13:17:13,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:17:13,852 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:17:13,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13 WrapperNode [2022-01-10 13:17:13,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:17:13,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:17:13,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:17:13,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:17:13,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,931 INFO L137 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1671 [2022-01-10 13:17:13,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:17:13,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:17:13,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:17:13,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:17:13,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:13,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:17:13,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:17:13,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:17:13,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:17:14,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (1/1) ... [2022-01-10 13:17:14,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:17:14,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:17:14,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 13:17:14,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 13:17:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:17:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:17:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:17:14,247 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:17:14,248 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:17:15,516 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:17:15,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:17:15,528 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 13:17:15,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:17:15 BoogieIcfgContainer [2022-01-10 13:17:15,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:17:15,535 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:17:15,535 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:17:15,536 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:17:15,539 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:17:15" (1/1) ... [2022-01-10 13:17:16,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:17:16 BasicIcfg [2022-01-10 13:17:16,460 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:17:16,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:17:16,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:17:16,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:17:16,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:17:13" (1/4) ... [2022-01-10 13:17:16,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e0a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:17:16, skipping insertion in model container [2022-01-10 13:17:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:17:13" (2/4) ... [2022-01-10 13:17:16,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e0a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:17:16, skipping insertion in model container [2022-01-10 13:17:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:17:15" (3/4) ... [2022-01-10 13:17:16,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e0a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:17:16, skipping insertion in model container [2022-01-10 13:17:16,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:17:16" (4/4) ... [2022-01-10 13:17:16,468 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.cTransformedIcfg [2022-01-10 13:17:16,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:17:16,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 13:17:16,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:17:16,532 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:17:16,532 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 13:17:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 407 states have (on average 1.805896805896806) internal successors, (735), 412 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-10 13:17:16,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:16,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:16,584 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:16,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:16,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2066067391, now seen corresponding path program 1 times [2022-01-10 13:17:16,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:16,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187183220] [2022-01-10 13:17:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:16,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:17,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:17,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187183220] [2022-01-10 13:17:17,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187183220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:17,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:17,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:17,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758257445] [2022-01-10 13:17:17,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:17,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:17,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:17,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:17,287 INFO L87 Difference]: Start difference. First operand has 413 states, 407 states have (on average 1.805896805896806) internal successors, (735), 412 states have internal predecessors, (735), 0 states have call successors, (0), 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 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:17,490 INFO L93 Difference]: Finished difference Result 1189 states and 2120 transitions. [2022-01-10 13:17:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:17,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2022-01-10 13:17:17,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:17,512 INFO L225 Difference]: With dead ends: 1189 [2022-01-10 13:17:17,512 INFO L226 Difference]: Without dead ends: 795 [2022-01-10 13:17:17,520 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 [2022-01-10 13:17:17,523 INFO L933 BasicCegarLoop]: 1180 mSDtfsCounter, 1597 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:17,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1597 Valid, 1854 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:17:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-01-10 13:17:17,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 769. [2022-01-10 13:17:17,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 764 states have (on average 1.4476439790575917) internal successors, (1106), 768 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:17,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1106 transitions. [2022-01-10 13:17:17,620 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1106 transitions. Word has length 148 [2022-01-10 13:17:17,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:17,620 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1106 transitions. [2022-01-10 13:17:17,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:17,621 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1106 transitions. [2022-01-10 13:17:17,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-10 13:17:17,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:17,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:17,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:17:17,631 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:17,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash 694291665, now seen corresponding path program 1 times [2022-01-10 13:17:17,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:17,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366744193] [2022-01-10 13:17:17,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:17,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:17,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:17,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366744193] [2022-01-10 13:17:17,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366744193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:17,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:17,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:17,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039017280] [2022-01-10 13:17:17,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:17,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:17,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:17,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:17,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:17,862 INFO L87 Difference]: Start difference. First operand 769 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:17,918 INFO L93 Difference]: Finished difference Result 2269 states and 3254 transitions. [2022-01-10 13:17:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:17,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2022-01-10 13:17:17,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:17,926 INFO L225 Difference]: With dead ends: 2269 [2022-01-10 13:17:17,926 INFO L226 Difference]: Without dead ends: 1528 [2022-01-10 13:17:17,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:17,928 INFO L933 BasicCegarLoop]: 1168 mSDtfsCounter, 580 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:17,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 1750 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:17,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-01-10 13:17:17,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 771. [2022-01-10 13:17:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 766 states have (on average 1.4464751958224542) internal successors, (1108), 770 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1108 transitions. [2022-01-10 13:17:17,975 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1108 transitions. Word has length 149 [2022-01-10 13:17:17,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:17,981 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1108 transitions. [2022-01-10 13:17:17,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1108 transitions. [2022-01-10 13:17:17,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-10 13:17:17,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:17,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:17,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:17:17,985 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:17,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1497990362, now seen corresponding path program 1 times [2022-01-10 13:17:17,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:17,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187956429] [2022-01-10 13:17:17,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:17,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:18,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:18,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187956429] [2022-01-10 13:17:18,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187956429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:18,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:18,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:17:18,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567633958] [2022-01-10 13:17:18,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:18,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:17:18,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:18,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:17:18,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:17:18,230 INFO L87 Difference]: Start difference. First operand 771 states and 1108 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:18,473 INFO L93 Difference]: Finished difference Result 2987 states and 4272 transitions. [2022-01-10 13:17:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 13:17:18,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2022-01-10 13:17:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:18,483 INFO L225 Difference]: With dead ends: 2987 [2022-01-10 13:17:18,484 INFO L226 Difference]: Without dead ends: 2228 [2022-01-10 13:17:18,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 13:17:18,490 INFO L933 BasicCegarLoop]: 1338 mSDtfsCounter, 1936 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:18,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1936 Valid, 2409 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:17:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2022-01-10 13:17:18,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1464. [2022-01-10 13:17:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1459 states have (on average 1.4276901987662782) internal successors, (2083), 1463 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:18,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 2083 transitions. [2022-01-10 13:17:18,623 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 2083 transitions. Word has length 150 [2022-01-10 13:17:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:18,624 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 2083 transitions. [2022-01-10 13:17:18,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:18,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 2083 transitions. [2022-01-10 13:17:18,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-10 13:17:18,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:18,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:18,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:17:18,628 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1990387518, now seen corresponding path program 1 times [2022-01-10 13:17:18,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:18,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170583212] [2022-01-10 13:17:18,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:18,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:18,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:18,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170583212] [2022-01-10 13:17:18,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170583212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:18,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:18,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:18,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930232448] [2022-01-10 13:17:18,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:18,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:18,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:18,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:18,773 INFO L87 Difference]: Start difference. First operand 1464 states and 2083 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:18,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:18,856 INFO L93 Difference]: Finished difference Result 2573 states and 3652 transitions. [2022-01-10 13:17:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:18,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2022-01-10 13:17:18,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:18,862 INFO L225 Difference]: With dead ends: 2573 [2022-01-10 13:17:18,863 INFO L226 Difference]: Without dead ends: 1125 [2022-01-10 13:17:18,865 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 [2022-01-10 13:17:18,871 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 69 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:18,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1808 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:18,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-01-10 13:17:18,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2022-01-10 13:17:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1120 states have (on average 1.4223214285714285) internal successors, (1593), 1124 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:18,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1593 transitions. [2022-01-10 13:17:18,945 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1593 transitions. Word has length 150 [2022-01-10 13:17:18,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:18,946 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 1593 transitions. [2022-01-10 13:17:18,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1593 transitions. [2022-01-10 13:17:18,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-10 13:17:18,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:18,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:18,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:17:18,949 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:18,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash 972069584, now seen corresponding path program 1 times [2022-01-10 13:17:18,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:18,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843248879] [2022-01-10 13:17:18,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:18,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:19,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:19,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843248879] [2022-01-10 13:17:19,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843248879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:19,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:19,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:19,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867631598] [2022-01-10 13:17:19,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:19,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:19,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:19,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:19,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:19,056 INFO L87 Difference]: Start difference. First operand 1125 states and 1593 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:19,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:19,131 INFO L93 Difference]: Finished difference Result 2260 states and 3181 transitions. [2022-01-10 13:17:19,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:19,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-01-10 13:17:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:19,137 INFO L225 Difference]: With dead ends: 2260 [2022-01-10 13:17:19,137 INFO L226 Difference]: Without dead ends: 1510 [2022-01-10 13:17:19,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:19,140 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 572 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:19,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 1218 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2022-01-10 13:17:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1125. [2022-01-10 13:17:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1120 states have (on average 1.4214285714285715) internal successors, (1592), 1124 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:19,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1592 transitions. [2022-01-10 13:17:19,206 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1592 transitions. Word has length 153 [2022-01-10 13:17:19,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:19,206 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 1592 transitions. [2022-01-10 13:17:19,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:19,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1592 transitions. [2022-01-10 13:17:19,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-10 13:17:19,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:19,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:19,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:17:19,209 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:19,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:19,210 INFO L85 PathProgramCache]: Analyzing trace with hash -63349958, now seen corresponding path program 1 times [2022-01-10 13:17:19,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:19,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306507395] [2022-01-10 13:17:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:19,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:19,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:19,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306507395] [2022-01-10 13:17:19,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306507395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:19,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:19,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:19,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796308204] [2022-01-10 13:17:19,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:19,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:19,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:19,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:19,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:19,349 INFO L87 Difference]: Start difference. First operand 1125 states and 1592 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:19,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:19,455 INFO L93 Difference]: Finished difference Result 2446 states and 3549 transitions. [2022-01-10 13:17:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:19,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-10 13:17:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:19,462 INFO L225 Difference]: With dead ends: 2446 [2022-01-10 13:17:19,462 INFO L226 Difference]: Without dead ends: 1504 [2022-01-10 13:17:19,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:19,465 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 307 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:19,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1240 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:19,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-01-10 13:17:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1340. [2022-01-10 13:17:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1335 states have (on average 1.4539325842696629) internal successors, (1941), 1339 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:19,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1941 transitions. [2022-01-10 13:17:19,551 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1941 transitions. Word has length 154 [2022-01-10 13:17:19,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:19,551 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 1941 transitions. [2022-01-10 13:17:19,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:19,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1941 transitions. [2022-01-10 13:17:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-10 13:17:19,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:19,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:19,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:17:19,555 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1395002236, now seen corresponding path program 1 times [2022-01-10 13:17:19,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:19,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71482288] [2022-01-10 13:17:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:19,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:19,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:19,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71482288] [2022-01-10 13:17:19,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71482288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:19,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:19,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:19,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986406391] [2022-01-10 13:17:19,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:19,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:19,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:19,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:19,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:19,686 INFO L87 Difference]: Start difference. First operand 1340 states and 1941 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:19,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:19,854 INFO L93 Difference]: Finished difference Result 3573 states and 5207 transitions. [2022-01-10 13:17:19,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:19,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2022-01-10 13:17:19,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:19,866 INFO L225 Difference]: With dead ends: 3573 [2022-01-10 13:17:19,866 INFO L226 Difference]: Without dead ends: 2514 [2022-01-10 13:17:19,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:19,870 INFO L933 BasicCegarLoop]: 1088 mSDtfsCounter, 502 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:19,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 1616 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:19,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2514 states. [2022-01-10 13:17:20,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2514 to 2493. [2022-01-10 13:17:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 2488 states have (on average 1.4417202572347267) internal successors, (3587), 2492 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:20,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3587 transitions. [2022-01-10 13:17:20,042 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3587 transitions. Word has length 157 [2022-01-10 13:17:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:20,042 INFO L470 AbstractCegarLoop]: Abstraction has 2493 states and 3587 transitions. [2022-01-10 13:17:20,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3587 transitions. [2022-01-10 13:17:20,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-10 13:17:20,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:20,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:20,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:17:20,046 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:20,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2118292669, now seen corresponding path program 1 times [2022-01-10 13:17:20,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:20,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224215298] [2022-01-10 13:17:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:20,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:20,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:20,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224215298] [2022-01-10 13:17:20,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224215298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:20,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:20,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:20,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19490996] [2022-01-10 13:17:20,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:20,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:20,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:20,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:20,171 INFO L87 Difference]: Start difference. First operand 2493 states and 3587 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:20,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:20,444 INFO L93 Difference]: Finished difference Result 6223 states and 8944 transitions. [2022-01-10 13:17:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:20,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2022-01-10 13:17:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:20,459 INFO L225 Difference]: With dead ends: 6223 [2022-01-10 13:17:20,460 INFO L226 Difference]: Without dead ends: 3818 [2022-01-10 13:17:20,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:20,466 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 1605 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:20,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1605 Valid, 1229 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:20,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-01-10 13:17:20,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 2498. [2022-01-10 13:17:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2493 states have (on average 1.439630966706779) internal successors, (3589), 2497 states have internal predecessors, (3589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3589 transitions. [2022-01-10 13:17:20,705 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3589 transitions. Word has length 157 [2022-01-10 13:17:20,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:20,706 INFO L470 AbstractCegarLoop]: Abstraction has 2498 states and 3589 transitions. [2022-01-10 13:17:20,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3589 transitions. [2022-01-10 13:17:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-10 13:17:20,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:20,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:20,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:17:20,710 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:20,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:20,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1395448808, now seen corresponding path program 1 times [2022-01-10 13:17:20,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:20,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089890094] [2022-01-10 13:17:20,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:20,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:20,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:20,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089890094] [2022-01-10 13:17:20,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089890094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:20,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:20,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:20,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973449510] [2022-01-10 13:17:20,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:20,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:20,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:20,851 INFO L87 Difference]: Start difference. First operand 2498 states and 3589 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:21,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:21,306 INFO L93 Difference]: Finished difference Result 7207 states and 10334 transitions. [2022-01-10 13:17:21,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:21,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2022-01-10 13:17:21,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:21,323 INFO L225 Difference]: With dead ends: 7207 [2022-01-10 13:17:21,323 INFO L226 Difference]: Without dead ends: 4777 [2022-01-10 13:17:21,327 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 [2022-01-10 13:17:21,327 INFO L933 BasicCegarLoop]: 948 mSDtfsCounter, 1228 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:21,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 1482 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2022-01-10 13:17:21,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4743. [2022-01-10 13:17:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 4738 states have (on average 1.4284508231321233) internal successors, (6768), 4742 states have internal predecessors, (6768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 6768 transitions. [2022-01-10 13:17:21,751 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 6768 transitions. Word has length 157 [2022-01-10 13:17:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:21,752 INFO L470 AbstractCegarLoop]: Abstraction has 4743 states and 6768 transitions. [2022-01-10 13:17:21,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 6768 transitions. [2022-01-10 13:17:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 13:17:21,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:21,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:21,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:17:21,759 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:21,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1704253538, now seen corresponding path program 1 times [2022-01-10 13:17:21,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:21,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280999060] [2022-01-10 13:17:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:21,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:21,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:21,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:21,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280999060] [2022-01-10 13:17:21,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280999060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:21,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:21,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:21,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796153149] [2022-01-10 13:17:21,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:21,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:21,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:21,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:21,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:21,915 INFO L87 Difference]: Start difference. First operand 4743 states and 6768 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:22,219 INFO L93 Difference]: Finished difference Result 6964 states and 9968 transitions. [2022-01-10 13:17:22,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:22,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-01-10 13:17:22,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:22,234 INFO L225 Difference]: With dead ends: 6964 [2022-01-10 13:17:22,235 INFO L226 Difference]: Without dead ends: 3970 [2022-01-10 13:17:22,239 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 [2022-01-10 13:17:22,240 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 47 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:22,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1783 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:22,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2022-01-10 13:17:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3970. [2022-01-10 13:17:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 3965 states have (on average 1.4279949558638083) internal successors, (5662), 3969 states have internal predecessors, (5662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:22,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 5662 transitions. [2022-01-10 13:17:22,587 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 5662 transitions. Word has length 159 [2022-01-10 13:17:22,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:22,587 INFO L470 AbstractCegarLoop]: Abstraction has 3970 states and 5662 transitions. [2022-01-10 13:17:22,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:22,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 5662 transitions. [2022-01-10 13:17:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 13:17:22,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:22,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:22,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:17:22,592 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:22,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:22,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1787379731, now seen corresponding path program 1 times [2022-01-10 13:17:22,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:22,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751411691] [2022-01-10 13:17:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:22,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:22,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:22,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751411691] [2022-01-10 13:17:22,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751411691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:22,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:22,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:17:22,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476432533] [2022-01-10 13:17:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:22,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:17:22,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:22,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:17:22,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:17:22,786 INFO L87 Difference]: Start difference. First operand 3970 states and 5662 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:23,312 INFO L93 Difference]: Finished difference Result 10455 states and 14861 transitions. [2022-01-10 13:17:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 13:17:23,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-01-10 13:17:23,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:23,336 INFO L225 Difference]: With dead ends: 10455 [2022-01-10 13:17:23,336 INFO L226 Difference]: Without dead ends: 6529 [2022-01-10 13:17:23,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 13:17:23,344 INFO L933 BasicCegarLoop]: 1331 mSDtfsCounter, 1756 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:23,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1756 Valid, 2391 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:17:23,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6529 states. [2022-01-10 13:17:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6529 to 4135. [2022-01-10 13:17:23,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 4130 states have (on average 1.416949152542373) internal successors, (5852), 4134 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:23,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5852 transitions. [2022-01-10 13:17:23,665 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5852 transitions. Word has length 159 [2022-01-10 13:17:23,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:23,665 INFO L470 AbstractCegarLoop]: Abstraction has 4135 states and 5852 transitions. [2022-01-10 13:17:23,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:23,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5852 transitions. [2022-01-10 13:17:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 13:17:23,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:23,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:23,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:17:23,671 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:23,671 INFO L85 PathProgramCache]: Analyzing trace with hash -97021175, now seen corresponding path program 1 times [2022-01-10 13:17:23,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:23,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624716378] [2022-01-10 13:17:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:23,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:23,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:23,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:23,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624716378] [2022-01-10 13:17:23,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624716378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:23,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:23,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:23,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563210554] [2022-01-10 13:17:23,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:23,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:23,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:23,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:23,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:23,832 INFO L87 Difference]: Start difference. First operand 4135 states and 5852 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:24,128 INFO L93 Difference]: Finished difference Result 7464 states and 10553 transitions. [2022-01-10 13:17:24,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:24,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-01-10 13:17:24,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:24,136 INFO L225 Difference]: With dead ends: 7464 [2022-01-10 13:17:24,136 INFO L226 Difference]: Without dead ends: 3365 [2022-01-10 13:17:24,142 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 [2022-01-10 13:17:24,143 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 47 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:24,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1778 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:24,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2022-01-10 13:17:24,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 3365. [2022-01-10 13:17:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3365 states, 3360 states have (on average 1.4136904761904763) internal successors, (4750), 3364 states have internal predecessors, (4750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 4750 transitions. [2022-01-10 13:17:24,378 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 4750 transitions. Word has length 159 [2022-01-10 13:17:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:24,378 INFO L470 AbstractCegarLoop]: Abstraction has 3365 states and 4750 transitions. [2022-01-10 13:17:24,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:24,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 4750 transitions. [2022-01-10 13:17:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-10 13:17:24,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:24,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:24,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:17:24,384 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:24,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:24,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2025808977, now seen corresponding path program 1 times [2022-01-10 13:17:24,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:24,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054939130] [2022-01-10 13:17:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:24,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:24,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:24,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:24,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054939130] [2022-01-10 13:17:24,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054939130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:24,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:24,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:24,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427367537] [2022-01-10 13:17:24,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:24,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:24,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:24,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:24,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:24,476 INFO L87 Difference]: Start difference. First operand 3365 states and 4750 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:24,785 INFO L93 Difference]: Finished difference Result 6664 states and 9419 transitions. [2022-01-10 13:17:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:24,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2022-01-10 13:17:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:24,794 INFO L225 Difference]: With dead ends: 6664 [2022-01-10 13:17:24,794 INFO L226 Difference]: Without dead ends: 4658 [2022-01-10 13:17:24,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:24,798 INFO L933 BasicCegarLoop]: 904 mSDtfsCounter, 557 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:24,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 1470 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2022-01-10 13:17:25,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 3365. [2022-01-10 13:17:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3365 states, 3360 states have (on average 1.412797619047619) internal successors, (4747), 3364 states have internal predecessors, (4747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 4747 transitions. [2022-01-10 13:17:25,056 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 4747 transitions. Word has length 162 [2022-01-10 13:17:25,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:25,057 INFO L470 AbstractCegarLoop]: Abstraction has 3365 states and 4747 transitions. [2022-01-10 13:17:25,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:25,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 4747 transitions. [2022-01-10 13:17:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-10 13:17:25,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:25,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:25,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:17:25,062 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:25,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:25,062 INFO L85 PathProgramCache]: Analyzing trace with hash -576229558, now seen corresponding path program 1 times [2022-01-10 13:17:25,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:25,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856157456] [2022-01-10 13:17:25,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:25,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:25,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:25,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856157456] [2022-01-10 13:17:25,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856157456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:25,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:25,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:25,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96681882] [2022-01-10 13:17:25,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:25,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:25,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:25,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:25,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:25,215 INFO L87 Difference]: Start difference. First operand 3365 states and 4747 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:25,593 INFO L93 Difference]: Finished difference Result 7631 states and 11101 transitions. [2022-01-10 13:17:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:25,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2022-01-10 13:17:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:25,603 INFO L225 Difference]: With dead ends: 7631 [2022-01-10 13:17:25,604 INFO L226 Difference]: Without dead ends: 4797 [2022-01-10 13:17:25,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:25,609 INFO L933 BasicCegarLoop]: 778 mSDtfsCounter, 305 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:25,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1219 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:25,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4797 states. [2022-01-10 13:17:25,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4797 to 4346. [2022-01-10 13:17:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4346 states, 4341 states have (on average 1.4531214005989403) internal successors, (6308), 4345 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4346 states to 4346 states and 6308 transitions. [2022-01-10 13:17:25,913 INFO L78 Accepts]: Start accepts. Automaton has 4346 states and 6308 transitions. Word has length 163 [2022-01-10 13:17:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:25,913 INFO L470 AbstractCegarLoop]: Abstraction has 4346 states and 6308 transitions. [2022-01-10 13:17:25,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4346 states and 6308 transitions. [2022-01-10 13:17:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-10 13:17:25,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:25,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:25,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:17:25,919 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash -190986002, now seen corresponding path program 1 times [2022-01-10 13:17:25,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:25,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668420163] [2022-01-10 13:17:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:25,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:26,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:26,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:26,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668420163] [2022-01-10 13:17:26,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668420163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:26,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:26,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:26,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731768060] [2022-01-10 13:17:26,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:26,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:26,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:26,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:26,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:26,077 INFO L87 Difference]: Start difference. First operand 4346 states and 6308 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:26,513 INFO L93 Difference]: Finished difference Result 10442 states and 15305 transitions. [2022-01-10 13:17:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:26,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-01-10 13:17:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:26,527 INFO L225 Difference]: With dead ends: 10442 [2022-01-10 13:17:26,527 INFO L226 Difference]: Without dead ends: 6767 [2022-01-10 13:17:26,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:26,533 INFO L933 BasicCegarLoop]: 1069 mSDtfsCounter, 490 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:26,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 1597 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:26,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6767 states. [2022-01-10 13:17:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6767 to 6735. [2022-01-10 13:17:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 6730 states have (on average 1.4419019316493313) internal successors, (9704), 6734 states have internal predecessors, (9704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 9704 transitions. [2022-01-10 13:17:27,109 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 9704 transitions. Word has length 166 [2022-01-10 13:17:27,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:27,109 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 9704 transitions. [2022-01-10 13:17:27,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 9704 transitions. [2022-01-10 13:17:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-10 13:17:27,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:27,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:27,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:17:27,117 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash -313888855, now seen corresponding path program 1 times [2022-01-10 13:17:27,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:27,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172390138] [2022-01-10 13:17:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:27,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:27,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:27,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172390138] [2022-01-10 13:17:27,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172390138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:27,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:27,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:27,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499435329] [2022-01-10 13:17:27,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:27,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:27,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:27,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:27,282 INFO L87 Difference]: Start difference. First operand 6735 states and 9704 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:28,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:28,071 INFO L93 Difference]: Finished difference Result 16187 states and 23493 transitions. [2022-01-10 13:17:28,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:28,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-01-10 13:17:28,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:28,093 INFO L225 Difference]: With dead ends: 16187 [2022-01-10 13:17:28,093 INFO L226 Difference]: Without dead ends: 10426 [2022-01-10 13:17:28,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:28,104 INFO L933 BasicCegarLoop]: 1047 mSDtfsCounter, 496 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:28,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [496 Valid, 1570 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:28,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10426 states. [2022-01-10 13:17:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10426 to 10394. [2022-01-10 13:17:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10394 states, 10389 states have (on average 1.4261237847723554) internal successors, (14816), 10393 states have internal predecessors, (14816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10394 states to 10394 states and 14816 transitions. [2022-01-10 13:17:28,949 INFO L78 Accepts]: Start accepts. Automaton has 10394 states and 14816 transitions. Word has length 166 [2022-01-10 13:17:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:28,950 INFO L470 AbstractCegarLoop]: Abstraction has 10394 states and 14816 transitions. [2022-01-10 13:17:28,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 10394 states and 14816 transitions. [2022-01-10 13:17:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-10 13:17:28,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:28,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:28,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:17:28,959 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1387212718, now seen corresponding path program 1 times [2022-01-10 13:17:28,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:28,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624235513] [2022-01-10 13:17:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:28,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:29,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:29,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624235513] [2022-01-10 13:17:29,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624235513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:29,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:29,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:29,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503209469] [2022-01-10 13:17:29,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:29,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:29,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:29,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:29,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:29,164 INFO L87 Difference]: Start difference. First operand 10394 states and 14816 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:30,207 INFO L93 Difference]: Finished difference Result 23432 states and 34117 transitions. [2022-01-10 13:17:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:30,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2022-01-10 13:17:30,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:30,242 INFO L225 Difference]: With dead ends: 23432 [2022-01-10 13:17:30,242 INFO L226 Difference]: Without dead ends: 15391 [2022-01-10 13:17:30,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:30,258 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 327 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:30,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 1228 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:30,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15391 states. [2022-01-10 13:17:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15391 to 14127. [2022-01-10 13:17:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14127 states, 14122 states have (on average 1.4599915026200254) internal successors, (20618), 14126 states have internal predecessors, (20618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14127 states to 14127 states and 20618 transitions. [2022-01-10 13:17:31,284 INFO L78 Accepts]: Start accepts. Automaton has 14127 states and 20618 transitions. Word has length 170 [2022-01-10 13:17:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:31,284 INFO L470 AbstractCegarLoop]: Abstraction has 14127 states and 20618 transitions. [2022-01-10 13:17:31,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:31,285 INFO L276 IsEmpty]: Start isEmpty. Operand 14127 states and 20618 transitions. [2022-01-10 13:17:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-10 13:17:31,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:31,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:31,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:17:31,292 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:31,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:31,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1295594290, now seen corresponding path program 1 times [2022-01-10 13:17:31,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:31,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814140475] [2022-01-10 13:17:31,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:31,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:31,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:31,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814140475] [2022-01-10 13:17:31,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814140475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:31,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:31,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:31,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412062468] [2022-01-10 13:17:31,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:31,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:31,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:31,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:31,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:31,403 INFO L87 Difference]: Start difference. First operand 14127 states and 20618 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:33,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:33,622 INFO L93 Difference]: Finished difference Result 40019 states and 58996 transitions. [2022-01-10 13:17:33,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:33,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-01-10 13:17:33,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:33,678 INFO L225 Difference]: With dead ends: 40019 [2022-01-10 13:17:33,678 INFO L226 Difference]: Without dead ends: 27395 [2022-01-10 13:17:33,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:33,708 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 470 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:33,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 1346 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 13:17:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27395 states. [2022-01-10 13:17:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27395 to 27363. [2022-01-10 13:17:35,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27363 states, 27358 states have (on average 1.4602675634183786) internal successors, (39950), 27362 states have internal predecessors, (39950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27363 states to 27363 states and 39950 transitions. [2022-01-10 13:17:35,911 INFO L78 Accepts]: Start accepts. Automaton has 27363 states and 39950 transitions. Word has length 171 [2022-01-10 13:17:35,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:35,912 INFO L470 AbstractCegarLoop]: Abstraction has 27363 states and 39950 transitions. [2022-01-10 13:17:35,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 27363 states and 39950 transitions. [2022-01-10 13:17:35,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-10 13:17:35,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:35,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:35,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:17:35,927 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:35,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:35,928 INFO L85 PathProgramCache]: Analyzing trace with hash -714989841, now seen corresponding path program 1 times [2022-01-10 13:17:35,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:35,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326123411] [2022-01-10 13:17:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:35,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:36,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:36,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326123411] [2022-01-10 13:17:36,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326123411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:36,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:36,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:36,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975104269] [2022-01-10 13:17:36,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:36,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:36,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:36,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:36,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:36,115 INFO L87 Difference]: Start difference. First operand 27363 states and 39950 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:38,314 INFO L93 Difference]: Finished difference Result 54880 states and 80093 transitions. [2022-01-10 13:17:38,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-01-10 13:17:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:38,354 INFO L225 Difference]: With dead ends: 54880 [2022-01-10 13:17:38,354 INFO L226 Difference]: Without dead ends: 27676 [2022-01-10 13:17:38,376 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 [2022-01-10 13:17:38,377 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 1127 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:38,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 1503 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:38,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27676 states. [2022-01-10 13:17:40,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27676 to 27524. [2022-01-10 13:17:40,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27524 states, 27519 states have (on average 1.4581198444710928) internal successors, (40126), 27523 states have internal predecessors, (40126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27524 states to 27524 states and 40126 transitions. [2022-01-10 13:17:40,842 INFO L78 Accepts]: Start accepts. Automaton has 27524 states and 40126 transitions. Word has length 171 [2022-01-10 13:17:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:40,842 INFO L470 AbstractCegarLoop]: Abstraction has 27524 states and 40126 transitions. [2022-01-10 13:17:40,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:40,842 INFO L276 IsEmpty]: Start isEmpty. Operand 27524 states and 40126 transitions. [2022-01-10 13:17:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-10 13:17:40,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:40,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:40,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:17:40,852 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:40,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1323906057, now seen corresponding path program 1 times [2022-01-10 13:17:40,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:40,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683882697] [2022-01-10 13:17:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:40,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:40,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:40,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683882697] [2022-01-10 13:17:40,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683882697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:40,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:40,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:17:40,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7087195] [2022-01-10 13:17:40,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:40,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:17:40,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:40,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:17:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:40,950 INFO L87 Difference]: Start difference. First operand 27524 states and 40126 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:45,050 INFO L93 Difference]: Finished difference Result 74935 states and 109441 transitions. [2022-01-10 13:17:45,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:17:45,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2022-01-10 13:17:45,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:45,153 INFO L225 Difference]: With dead ends: 74935 [2022-01-10 13:17:45,154 INFO L226 Difference]: Without dead ends: 54836 [2022-01-10 13:17:45,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:17:45,181 INFO L933 BasicCegarLoop]: 1120 mSDtfsCounter, 546 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:45,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 1688 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:45,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54836 states. [2022-01-10 13:17:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54836 to 27534. [2022-01-10 13:17:47,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27534 states, 27529 states have (on average 1.4579534309273856) internal successors, (40136), 27533 states have internal predecessors, (40136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:47,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27534 states to 27534 states and 40136 transitions. [2022-01-10 13:17:47,757 INFO L78 Accepts]: Start accepts. Automaton has 27534 states and 40136 transitions. Word has length 172 [2022-01-10 13:17:47,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:47,757 INFO L470 AbstractCegarLoop]: Abstraction has 27534 states and 40136 transitions. [2022-01-10 13:17:47,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:47,757 INFO L276 IsEmpty]: Start isEmpty. Operand 27534 states and 40136 transitions. [2022-01-10 13:17:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-10 13:17:47,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:47,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:47,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:17:47,768 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:47,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash 914114804, now seen corresponding path program 1 times [2022-01-10 13:17:47,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:47,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786867342] [2022-01-10 13:17:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:47,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:47,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:47,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786867342] [2022-01-10 13:17:47,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786867342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:47,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:47,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:17:47,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299613198] [2022-01-10 13:17:47,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:47,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:17:47,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:47,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:17:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:17:47,941 INFO L87 Difference]: Start difference. First operand 27534 states and 40136 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:52,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:52,286 INFO L93 Difference]: Finished difference Result 71763 states and 104622 transitions. [2022-01-10 13:17:52,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 13:17:52,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2022-01-10 13:17:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:52,354 INFO L225 Difference]: With dead ends: 71763 [2022-01-10 13:17:52,354 INFO L226 Difference]: Without dead ends: 46091 [2022-01-10 13:17:52,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 13:17:52,385 INFO L933 BasicCegarLoop]: 1383 mSDtfsCounter, 1774 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:52,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1774 Valid, 2446 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46091 states. [2022-01-10 13:17:55,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46091 to 27871. [2022-01-10 13:17:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27871 states, 27866 states have (on average 1.4538146845618316) internal successors, (40512), 27870 states have internal predecessors, (40512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:55,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27871 states to 27871 states and 40512 transitions. [2022-01-10 13:17:55,197 INFO L78 Accepts]: Start accepts. Automaton has 27871 states and 40512 transitions. Word has length 173 [2022-01-10 13:17:55,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:17:55,197 INFO L470 AbstractCegarLoop]: Abstraction has 27871 states and 40512 transitions. [2022-01-10 13:17:55,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 27871 states and 40512 transitions. [2022-01-10 13:17:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-10 13:17:55,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:17:55,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:17:55,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:17:55,208 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:17:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:17:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1939138832, now seen corresponding path program 1 times [2022-01-10 13:17:55,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:17:55,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324480797] [2022-01-10 13:17:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:17:55,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:17:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:17:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:17:55,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:17:55,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324480797] [2022-01-10 13:17:55,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324480797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:17:55,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:17:55,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:17:55,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104198562] [2022-01-10 13:17:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:17:55,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:17:55,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:17:55,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:17:55,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:17:55,334 INFO L87 Difference]: Start difference. First operand 27871 states and 40512 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:17:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:17:58,027 INFO L93 Difference]: Finished difference Result 45854 states and 66766 transitions. [2022-01-10 13:17:58,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:17:58,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2022-01-10 13:17:58,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:17:58,060 INFO L225 Difference]: With dead ends: 45854 [2022-01-10 13:17:58,060 INFO L226 Difference]: Without dead ends: 25150 [2022-01-10 13:17:58,074 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 [2022-01-10 13:17:58,075 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 23 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:17:58,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 1739 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:17:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25150 states. [2022-01-10 13:18:00,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25150 to 25150. [2022-01-10 13:18:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25150 states, 25145 states have (on average 1.4570292304633128) internal successors, (36637), 25149 states have internal predecessors, (36637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:18:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25150 states to 25150 states and 36637 transitions. [2022-01-10 13:18:00,321 INFO L78 Accepts]: Start accepts. Automaton has 25150 states and 36637 transitions. Word has length 173 [2022-01-10 13:18:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:18:00,322 INFO L470 AbstractCegarLoop]: Abstraction has 25150 states and 36637 transitions. [2022-01-10 13:18:00,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:18:00,322 INFO L276 IsEmpty]: Start isEmpty. Operand 25150 states and 36637 transitions. [2022-01-10 13:18:00,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 13:18:00,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:18:00,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:18:00,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:18:00,331 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:18:00,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:18:00,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1498738394, now seen corresponding path program 1 times [2022-01-10 13:18:00,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:18:00,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638073565] [2022-01-10 13:18:00,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:18:00,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:18:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:18:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:18:00,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:18:00,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638073565] [2022-01-10 13:18:00,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638073565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:18:00,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:18:00,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:18:00,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948862189] [2022-01-10 13:18:00,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:18:00,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:18:00,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:18:00,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:18:00,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:18:00,636 INFO L87 Difference]: Start difference. First operand 25150 states and 36637 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:18:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:18:05,251 INFO L93 Difference]: Finished difference Result 70182 states and 104076 transitions. [2022-01-10 13:18:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 13:18:05,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2022-01-10 13:18:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:18:05,332 INFO L225 Difference]: With dead ends: 70182 [2022-01-10 13:18:05,332 INFO L226 Difference]: Without dead ends: 50118 [2022-01-10 13:18:05,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:18:05,352 INFO L933 BasicCegarLoop]: 1199 mSDtfsCounter, 831 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:18:05,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2697 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:18:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50118 states. [2022-01-10 13:18:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50118 to 25732. [2022-01-10 13:18:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25732 states, 25727 states have (on average 1.450188517899483) internal successors, (37309), 25731 states have internal predecessors, (37309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:18:07,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25732 states to 25732 states and 37309 transitions. [2022-01-10 13:18:07,999 INFO L78 Accepts]: Start accepts. Automaton has 25732 states and 37309 transitions. Word has length 175 [2022-01-10 13:18:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:18:07,999 INFO L470 AbstractCegarLoop]: Abstraction has 25732 states and 37309 transitions. [2022-01-10 13:18:07,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:18:07,999 INFO L276 IsEmpty]: Start isEmpty. Operand 25732 states and 37309 transitions. [2022-01-10 13:18:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 13:18:08,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:18:08,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:18:08,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:18:08,007 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 13:18:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:18:08,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2027657433, now seen corresponding path program 1 times [2022-01-10 13:18:08,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:18:08,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250077003] [2022-01-10 13:18:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:18:08,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:18:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:18:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:18:08,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:18:08,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250077003] [2022-01-10 13:18:08,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250077003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:18:08,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:18:08,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:18:08,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288516701] [2022-01-10 13:18:08,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:18:08,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:18:08,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:18:08,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:18:08,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:18:08,199 INFO L87 Difference]: Start difference. First operand 25732 states and 37309 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)