/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_NONE.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:43:04,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:43:04,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:43:04,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 00:43:04,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:43:04,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:43:04,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:43:04,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:43:04,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:43:04,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:43:04,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:43:04,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:43:04,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:43:04,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:43:04,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:43:04,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:43:04,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 00:43:04,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:43:04,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:43:04,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:43:04,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:43:04,835 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:43:04,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:43:04,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:43:04,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:43:04,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:43:04,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:43:04,836 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:43:04,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:43:04,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:43:04,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:43:04,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:43:04,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:43:04,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:43:04,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:43:04,837 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:43:04,838 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:43:04,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:43:04,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:43:04,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:43:04,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:43:04,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:43:04,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:43:04,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:43:04,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:43:04,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:43:04,840 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:43:04,840 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:43:05,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:43:05,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:43:05,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:43:05,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:43:05,095 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:43:05,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 00:43:05,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f046407/481c2c7bbc8f4ecd8b2718de624107e0/FLAG36120f313 [2022-01-11 00:43:05,695 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:43:05,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 00:43:05,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f046407/481c2c7bbc8f4ecd8b2718de624107e0/FLAG36120f313 [2022-01-11 00:43:06,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f046407/481c2c7bbc8f4ecd8b2718de624107e0 [2022-01-11 00:43:06,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:43:06,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:43:06,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:43:06,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:43:06,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:43:06,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:06,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653a7960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06, skipping insertion in model container [2022-01-11 00:43:06,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:06,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:43:06,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:43:06,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8125,8138] [2022-01-11 00:43:06,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14955,14968] [2022-01-11 00:43:06,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17042,17055] [2022-01-11 00:43:06,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18066,18079] [2022-01-11 00:43:06,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:43:06,660 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:43:06,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8125,8138] [2022-01-11 00:43:06,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14955,14968] [2022-01-11 00:43:06,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17042,17055] [2022-01-11 00:43:06,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18066,18079] [2022-01-11 00:43:06,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:43:06,898 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:43:06,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06 WrapperNode [2022-01-11 00:43:06,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:43:06,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:43:06,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:43:06,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:43:06,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:06,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:06,990 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2406 [2022-01-11 00:43:06,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:43:06,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:43:06,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:43:06,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:43:06,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:06,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:07,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:07,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:07,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:07,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:07,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:07,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:43:07,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:43:07,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:43:07,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:43:07,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (1/1) ... [2022-01-11 00:43:07,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:43:07,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:43:07,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 00:43:07,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 00:43:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:43:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:43:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:43:07,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:43:07,395 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:43:07,396 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:43:08,709 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:43:08,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:43:08,729 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 00:43:08,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:43:08 BoogieIcfgContainer [2022-01-11 00:43:08,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:43:08,732 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:43:08,732 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:43:08,735 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:43:08,737 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:43:08" (1/1) ... [2022-01-11 00:43:09,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:43:09 BasicIcfg [2022-01-11 00:43:09,851 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:43:09,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:43:09,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:43:09,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:43:09,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:43:06" (1/4) ... [2022-01-11 00:43:09,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b629990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:43:09, skipping insertion in model container [2022-01-11 00:43:09,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:43:06" (2/4) ... [2022-01-11 00:43:09,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b629990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:43:09, skipping insertion in model container [2022-01-11 00:43:09,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:43:08" (3/4) ... [2022-01-11 00:43:09,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b629990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:43:09, skipping insertion in model container [2022-01-11 00:43:09,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:43:09" (4/4) ... [2022-01-11 00:43:09,859 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.cTransformedIcfg [2022-01-11 00:43:09,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:43:09,865 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-11 00:43:09,917 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:43:09,923 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 00:43:09,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-11 00:43:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 456 states, 451 states have (on average 1.8492239467849223) internal successors, (834), 455 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 00:43:09,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:43:09,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:43:09,975 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:43:09,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:43:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1185160386, now seen corresponding path program 1 times [2022-01-11 00:43:09,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:43:09,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524466991] [2022-01-11 00:43:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:43:09,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:43:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:43:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:43:10,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:43:10,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524466991] [2022-01-11 00:43:10,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524466991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:43:10,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:43:10,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 00:43:10,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930632408] [2022-01-11 00:43:10,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:43:10,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 00:43:10,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:43:10,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 00:43:10,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:43:10,915 INFO L87 Difference]: Start difference. First operand has 456 states, 451 states have (on average 1.8492239467849223) internal successors, (834), 455 states have internal predecessors, (834), 0 states have call successors, (0), 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 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:14,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:18,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:22,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:25,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:43:26,253 INFO L93 Difference]: Finished difference Result 1706 states and 2908 transitions. [2022-01-11 00:43:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 00:43:26,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-11 00:43:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:43:26,274 INFO L225 Difference]: With dead ends: 1706 [2022-01-11 00:43:26,274 INFO L226 Difference]: Without dead ends: 1304 [2022-01-11 00:43:26,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-01-11 00:43:26,282 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 4237 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 49 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4237 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:43:26,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4237 Valid, 1819 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 941 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2022-01-11 00:43:26,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-01-11 00:43:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 888. [2022-01-11 00:43:26,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 884 states have (on average 1.420814479638009) internal successors, (1256), 887 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:26,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1256 transitions. [2022-01-11 00:43:26,485 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1256 transitions. Word has length 50 [2022-01-11 00:43:26,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:43:26,485 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 1256 transitions. [2022-01-11 00:43:26,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:26,486 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1256 transitions. [2022-01-11 00:43:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 00:43:26,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:43:26,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:43:26,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:43:26,489 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:43:26,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:43:26,489 INFO L85 PathProgramCache]: Analyzing trace with hash -153732789, now seen corresponding path program 1 times [2022-01-11 00:43:26,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:43:26,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374314980] [2022-01-11 00:43:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:43:26,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:43:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:43:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:43:26,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:43:26,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374314980] [2022-01-11 00:43:26,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374314980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:43:26,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:43:26,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:43:26,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777044609] [2022-01-11 00:43:26,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:43:26,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:43:26,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:43:26,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:43:26,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:43:26,672 INFO L87 Difference]: Start difference. First operand 888 states and 1256 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:43:26,995 INFO L93 Difference]: Finished difference Result 1945 states and 2852 transitions. [2022-01-11 00:43:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:43:26,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-11 00:43:26,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:43:27,002 INFO L225 Difference]: With dead ends: 1945 [2022-01-11 00:43:27,002 INFO L226 Difference]: Without dead ends: 1368 [2022-01-11 00:43:27,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:43:27,006 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 323 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:43:27,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 960 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:43:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2022-01-11 00:43:27,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1356. [2022-01-11 00:43:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1352 states have (on average 1.4474852071005917) internal successors, (1957), 1355 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1957 transitions. [2022-01-11 00:43:27,302 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1957 transitions. Word has length 50 [2022-01-11 00:43:27,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:43:27,303 INFO L470 AbstractCegarLoop]: Abstraction has 1356 states and 1957 transitions. [2022-01-11 00:43:27,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1957 transitions. [2022-01-11 00:43:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 00:43:27,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:43:27,306 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] [2022-01-11 00:43:27,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:43:27,306 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:43:27,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:43:27,307 INFO L85 PathProgramCache]: Analyzing trace with hash -388170611, now seen corresponding path program 1 times [2022-01-11 00:43:27,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:43:27,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396748870] [2022-01-11 00:43:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:43:27,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:43:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:43:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:43:27,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:43:27,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396748870] [2022-01-11 00:43:27,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396748870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:43:27,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:43:27,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 00:43:27,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261108474] [2022-01-11 00:43:27,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:43:27,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 00:43:27,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:43:27,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 00:43:27,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:43:27,882 INFO L87 Difference]: Start difference. First operand 1356 states and 1957 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:32,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:34,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:37,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:39,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:42,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:43:42,950 INFO L93 Difference]: Finished difference Result 4803 states and 7155 transitions. [2022-01-11 00:43:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 00:43:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-11 00:43:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:43:42,968 INFO L225 Difference]: With dead ends: 4803 [2022-01-11 00:43:42,968 INFO L226 Difference]: Without dead ends: 3954 [2022-01-11 00:43:42,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-01-11 00:43:42,972 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 4015 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 63 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:43:42,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4015 Valid, 1073 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 793 Invalid, 4 Unknown, 0 Unchecked, 13.0s Time] [2022-01-11 00:43:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2022-01-11 00:43:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 2283. [2022-01-11 00:43:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2279 states have (on average 1.4567792891619131) internal successors, (3320), 2282 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:43,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3320 transitions. [2022-01-11 00:43:43,709 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3320 transitions. Word has length 50 [2022-01-11 00:43:43,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:43:43,710 INFO L470 AbstractCegarLoop]: Abstraction has 2283 states and 3320 transitions. [2022-01-11 00:43:43,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:43,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3320 transitions. [2022-01-11 00:43:43,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 00:43:43,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:43:43,712 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] [2022-01-11 00:43:43,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:43:43,713 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:43:43,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:43:43,714 INFO L85 PathProgramCache]: Analyzing trace with hash 793810927, now seen corresponding path program 1 times [2022-01-11 00:43:43,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:43:43,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463019229] [2022-01-11 00:43:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:43:43,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:43:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:43:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:43:43,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:43:43,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463019229] [2022-01-11 00:43:43,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463019229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:43:43,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:43:43,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:43:43,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841981856] [2022-01-11 00:43:43,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:43:43,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:43:43,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:43:43,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:43:43,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:43:43,893 INFO L87 Difference]: Start difference. First operand 2283 states and 3320 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:43:45,077 INFO L93 Difference]: Finished difference Result 5722 states and 8439 transitions. [2022-01-11 00:43:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:43:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-11 00:43:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:43:45,091 INFO L225 Difference]: With dead ends: 5722 [2022-01-11 00:43:45,091 INFO L226 Difference]: Without dead ends: 3910 [2022-01-11 00:43:45,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:43:45,097 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 301 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:43:45,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 942 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:43:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2022-01-11 00:43:46,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3882. [2022-01-11 00:43:46,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 3878 states have (on average 1.4551315110881897) internal successors, (5643), 3881 states have internal predecessors, (5643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:46,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5643 transitions. [2022-01-11 00:43:46,095 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5643 transitions. Word has length 50 [2022-01-11 00:43:46,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:43:46,096 INFO L470 AbstractCegarLoop]: Abstraction has 3882 states and 5643 transitions. [2022-01-11 00:43:46,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:46,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5643 transitions. [2022-01-11 00:43:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 00:43:46,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:43:46,099 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] [2022-01-11 00:43:46,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:43:46,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:43:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:43:46,100 INFO L85 PathProgramCache]: Analyzing trace with hash -877704126, now seen corresponding path program 1 times [2022-01-11 00:43:46,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:43:46,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071765189] [2022-01-11 00:43:46,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:43:46,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:43:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:43:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:43:46,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:43:46,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071765189] [2022-01-11 00:43:46,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071765189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:43:46,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:43:46,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 00:43:46,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575361150] [2022-01-11 00:43:46,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:43:46,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 00:43:46,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:43:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 00:43:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:43:46,463 INFO L87 Difference]: Start difference. First operand 3882 states and 5643 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:43:49,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:52,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:55,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:43:59,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:44:02,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 00:44:03,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:44:03,067 INFO L93 Difference]: Finished difference Result 10875 states and 16112 transitions. [2022-01-11 00:44:03,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:44:03,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-11 00:44:03,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:44:03,098 INFO L225 Difference]: With dead ends: 10875 [2022-01-11 00:44:03,098 INFO L226 Difference]: Without dead ends: 9010 [2022-01-11 00:44:03,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-11 00:44:03,103 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 2308 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 38 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-01-11 00:44:03,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2308 Valid, 1303 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 709 Invalid, 5 Unknown, 0 Unchecked, 13.5s Time] [2022-01-11 00:44:03,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9010 states. [2022-01-11 00:44:04,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9010 to 4372. [2022-01-11 00:44:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 4368 states have (on average 1.4503205128205128) internal successors, (6335), 4371 states have internal predecessors, (6335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:44:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 6335 transitions. [2022-01-11 00:44:04,649 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 6335 transitions. Word has length 51 [2022-01-11 00:44:04,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:44:04,649 INFO L470 AbstractCegarLoop]: Abstraction has 4372 states and 6335 transitions. [2022-01-11 00:44:04,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:44:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 6335 transitions. [2022-01-11 00:44:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 00:44:04,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:44:04,652 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] [2022-01-11 00:44:04,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:44:04,653 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:44:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:44:04,653 INFO L85 PathProgramCache]: Analyzing trace with hash -645864785, now seen corresponding path program 1 times [2022-01-11 00:44:04,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:44:04,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669219586] [2022-01-11 00:44:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:44:04,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:44:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:44:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:44:04,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:44:04,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669219586] [2022-01-11 00:44:04,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669219586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:44:04,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:44:04,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:44:04,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429250504] [2022-01-11 00:44:04,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:44:04,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:44:04,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:44:04,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:44:04,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:44:04,744 INFO L87 Difference]: Start difference. First operand 4372 states and 6335 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:44:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:44:06,785 INFO L93 Difference]: Finished difference Result 10395 states and 15262 transitions. [2022-01-11 00:44:06,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:44:06,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-11 00:44:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:44:06,806 INFO L225 Difference]: With dead ends: 10395 [2022-01-11 00:44:06,806 INFO L226 Difference]: Without dead ends: 7105 [2022-01-11 00:44:06,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:44:06,812 INFO L933 BasicCegarLoop]: 609 mSDtfsCounter, 251 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:44:06,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 1014 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:44:06,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7105 states.